WTi-type Piston Pump Heads User`s Guide
Contents
1. 2 E 10 ml syringe 36460058 1 F Washer 3645329 1 G Piston seal mounting tool 36620123 1 H Titanium outlet tubing 250 x 1 6 x 0 5 mm 49922259 1 H Titanium outlet tubing 200 x 1 6 x 0 5 mm 49922209 1 Versilic rinsing tubing 2000 x 5 x 3 mm 470219739 1 J Tubing nipper 439460048 1 K Clamp 3650039 1 L Allen wrench 3 mm 4320302 1 M User s Guide LT801181 1 E gt Letters A through M see Figure 2C M under the frame 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODUCTION 1 3 ADDITIONAL ACCESSORIES Fon 10WTi AND 25WTi PUMP HEADS The following accessories contain no titanium components However these accessories can be used with a WTi pump head to expand its range of applications 5463125095 PTFE piston seal for 10SC 10WSC and 10WTi pump heads 5463050025 PTFE piston seal for 25SC and 25WTi pump heads These PTFE piston seals are black to be easily distinguished from the yellow HDPE seals PTFE seals are the best qualified for alkanes chlorinated solvents tetrahydrofuran and carbon dioxide typically lasting twice as long for those solvents than HDPE seals I22 The spring inside the piston seal is made of Hastelloy C276 wire or Elgiloy HT ribbon 3650201 Spring loaded check valve kit for 5SC 10SC 10WSC and 1OWTi pump heads This spring loaded check valve kit is s2. A rtisan Artisan Technology Group is your source for quality Technology Croup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment 7 EQUIPMENT DEMOS HUNDREDS OF Instra 2a REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com 7 information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED a gaa tia Contact us 888 88 SOURCE sales artisantg com www artisantg com WTi type Piston Pump Heads User s Guide GILSON SOLUTIONS AT WORK n Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com LT801181 G 2003 Gilson SAS All rights reserved March 2003 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads CONTENTS 1 Inrropucrion 2 Why use titanium 2 Unpacking and standard accessories 3 Additional accessories 10 2 DESC
3. XYLENE 4 SOLVENT DEGASSING Degas the solvent to prevent air bubble formation in the piston pump head or detector cell Vacuum filtration or helium sparging are more efficient methods than ultrasonic degassing Solvent degassing also improves baseline stability of UV absorbance detectors working at low wavelengths For example at210 nm a 1 change in the dissolved oxygen level willcausea4x 10 A U change in the absorbance of methanol 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com PRECAUTIONS FOR USE 5 5 CHANGING THE FLOWRATE To protect the HPLC columns change the flowrate in progressive steps never abruptly 6 SALINITY The Gilson WTi type piston pump heads are specially designed for pumping aggressive saline solutions such as salt buffers protein salting out agents and ion pairing compounds present at highconcentration in chromatographic mobile phases These heads are particularly adapted for strong pH and ionic strength gradients required in biopolymer separations Atambient temperatures in contrast with AISI 316L stainless steel see Figure 1 titanium is stable towards sodium chloride solutions up to saturating concentrations 5 3 M Even if severe operating conditions are applied there is no need to passivate this pump head thanks to the ability of titanium to rapid
4. 12 15 Take out the check valve cartridge s e Insert the new check valve cartridge s Then re assemble following the previous steps in the reverse order Note that the inlet and outlet check valve cartridges and support screws are not interchangeable e Tighten the support screw s using the nominal torque of 7 N m This ensures tightness up to the specified maximum pressure In the absence of a torque wrench tighten the support screw manually until there is contact then use an open end spanner to turn the screw 1 12 of a turn maximum see the figure opposite If leakage is observed thenre tightentheleakagesupportscrew until the leakage stops There is no longer EN a risk of damage to the new check valve cartridges i Run the pump and check for leaks around the support screws If leakage occurs tighten the support screw gently until leakage stops E22 for Fig 3A and 3B for Fig 3C 3 PISTONSEAL There are two identical piston seals in WTi type piston pump head One is located in the head body and the other in the rinse body The piston seal consists of a seal ring made from HDPE yellow andaspring made from titanium It must be changed whenever a seal leakage occurs The appearance of some liquid at the notch located at the bottom of the head body indicates leakage in the piston seal of the head body The same applies to the appearance of liquid at the notch in the rinse body 26 Artisan Technology G
5. Hastelloy C276 wire or Elgiloy HT ribbon The following accessories allow you to adapt the length of tubing to your particular needs For longer inlet tubing 49966202 Tubing FEP 4 x 5 x 500 mm equipped at both ends with PVDF M10 screw and flange type fitting 499691002 Tubing FEP 4 x 5 x 1000 mm equipped at both ends with PVDF M10 screw and flange type fitting 499692002 Tubing FEP 4 x 5 x 2000 mm equipped at both ends with PVDF M10 screw and flange type fitting F1410156 PVDF coupling for two M10 flat end male fittings 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODUCTION 1 For outlet tubing 470612502 ETFE outlet tubing 3 2 x 2 3 mm offered per meter 49041017 Polyacetal screw Uptight flangeless type 1 4 28TPI black Upchurch P 301 49041015 ETFE ferrule for 1 4 Uptight flangeless type fittings Upchurch P 300 F1410153 PVDF coupling for two 1 4 28TPI flat end male fittings 495023 Tee fitting PVDF 1 4 28TPI 1 5 mm hole For critical chromatographic connections downstream from injection 471200603 Tubing FEP 3 1 x 1 6 mm offered per meter To be used with 49041017 screw and 49041015 ferrule For metallic inlet 3650220 Metallic inlet fitting for 50SC 100SC and 200WTi pump heads Only consists of inlet check valve screw with Swagelok fitting 1 4 316L Tu
6. Housing spacer Stainless steel 8 Rinse body Stainless steel 9 Anti extrusion gasket PCTFE 10 Piston seal HDPE with titanium spring 11 Head body Titanium 12 O ring Nitrile rubber 13 Inlet check valve cartridge Titanium 14 Inlet check valve support screw Fig 4 Titanium and stainless steel 15 Screws Stainless steel 16 Outlet check valve cartridge Titanium 17 Outlet check valve support screw Fig 4 Titanium and stainless steel Figure 3A Exploded view of 1OWTi piston pump head assembly 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com DESCRIPTION 2 OUTLET 1 Threaded cover Stainless steel 2 Piston tail guide Stainless steel 3 Piston assembly Sapphire and stainless steel 4 Spring spacer Stainless steel 5 Return spring PTFE coated stainless steel 6 Ball housing assembly Stainless steel 7 Housing spacer Stainless steel 8 Rinse body Stainless steel 9 Anti extrusion gasket PCTFE 10 Piston seal HDPE with titanium spring 11 Head body Titanium 12 O ring Nitrile rubber 13 Inlet check valve cartridge Titanium 14 Inlet check valve support screw Fig 4 Titanium and stainless steel 15 Screws Stainless steel 16 Outlet check valve cartridge Titanium 17 Outlet check valve support screw Fig 4 Titanium and stainless steel Figure 3B Exploded view of 25WTi piston pump head assembly 14 Artisan Technology Group Quality Instrumentation Guarant
7. Qty A Inlet tubing FEP 640 x 2 x 3 mm equipped with a 10 um titanium filter 3650113 1 A Inlet tubing length extension FEP 2 x 3 x 1000 mm 49948392 1 B Male luer fitting PVDF 495019 2 C SSI screw 49031401 2 SSI ferrule 49031402 2 D Washer 3645329 1 E Piston seal mounting tool 36620290 1 F Titanium outlet tubing 250 x 1 6 x 1 mm 49924259 1 F Titanium outlet tubing 200 x 1 6 x 1 mm 49924209 1 G Versilic rinsing tubing 2000 x 5 x 3 mm 470219739 1 H Tubing nipper 439460048 1 Clamp 3650279 1 J Allen wrench 3 mm 4320302 1 K Coupling PVDF 1 4 28 TPI F1410153 1 L User s Guide LT801181 1 gt Letters A through L see Fig 2B K and L under the frame 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODUCTION 1 Figure 2C 10WTi Piston Pump Head kit 8 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INTRODUCTION 1 Table III Standard accessories for Model 10WTi 360551T Item Description Reference Qty A Inlet tubing PTFE 1000 x 2 x 3 mm equipped with a 10 um 11 cm titanium filter a 3 way prime valve and FEP inlet tubing 60 x 1 6 x 3mm 3645275T 1 B Male luer fitting PVDF 495019 2 C SSI screw 49031401 2 D SSI ferrule 49031402
8. 1 MOUNTING THE HEAD TO THE PUMP MODULE A Before mounting orremoving the piston pump head turn off the main power switch on the pump module Carefully insert the piston pump head into the opening of the pump Note that at the bottom of the head body there is a notch which you must fit onto the matching notch pin just below the opening of the pump Holding the piston pump head in place with one hand set the clamp diagonally over the head Turn the clamp clockwise until it engages the slots on either side of the piston pump head Finger tighten the thumbscrew until the head is secured Be sure that the clamp ends are secured in the slots on both sides 2 TUBING CONNECTIONS INLET AND OUTLET TUBING Tubing connections are shown in Figure 5 Note that the inlet connection is a flanged fitting which needs only to be finger tightened However if leakage occurs use an open end wrench to slightly turn the nut until leakage stops Be careful not to overtighten Specially with Model 200WTihead to avoid excessive shaking of the inlet tubing at high flowrates it is advisable to attach it at the pump side with a plastic locking collar ref 29501017 and at the solvent bottle neck witha device adapted to its size 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INSTALLATION RINSING TUBING Finger tighten the two male luer fittings respectively at the inlet and outle
9. C item G which is composed of a seal pusher and a seal guide to install the new piston seal as follows 27 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MAINTENANCE 6 Set the guide onto the head body or rinse body with its bevelled edge out Insert the new piston seal in the guide with its spring side down Press the seal pusher with your finger until the piston seal goes down to the body e Re assemble the head by reversing the instructions given for removing the seal s making note of the following Referring to Figure 3 ensure the piston assembly 3 and the spring spacer 4 are correctly assembled i e spherical male into spherical female Line up the ball housing assembly 6 5 the housing spacer 7 6 the rinse body 8 7 and the head body 11 10 with the matching hole or notch on the same side After screwing the ball housing assembly 6 5 the housing spacer 7 6 and the rinse body 8 7 onto the head body 11 10 put the body on a flat surface to facilitate the mounting of the other parts e Run in the new piston seal see Section 5 1 I for Fig 3A and 3B for Fig 3C Piston seal mounting too Seal guide Seal pusher Piston seal Head body bevelled edge out spring side in Figure 6 Piston seal installation 28 Artisan Technology Group Quality Instrumentation G
10. CTION 1 Figure 2A 200WTi Piston Pump Head kit 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INTRODUCTION 1 Table I Standard accessories for Model 200WTi 360532T ltem Description Reference Qty A Inlet tubing FEP 2000 x 5 x 4 mm equipped with a 25 um 24 cm titanium filter 3650275 1 B Male luer fitting PVDF 495019 2 C Polyacetal screw Uptight flangeless type 1 4 28 TPI black 49041017 2 D ETFE ferrule for 1 4 Uptight flangeless type fitting 49041015 2 E Piston seal mounting tool 95360006 1 F ETFE outlet tubing 250 x 3 2 x 2 3 mm 470612502 1 G Versilic rinsing tubing 2000 x 5 x 3 mm 470219739 1 H Tubing nipper 439460048 1 Clamp 3650279 il J Allen wrench 3 mm 4320302 1 User s Guide LT801181 1 I Letters A through J see Figure 2A 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODUCTION 1 Figure 2B 25WTi Piston Pump Head kit 6 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INTRODUCTION 1 Table II Standard accessories for Model 25WTi 360523T Item Description Reference
11. O ring 12 5464535106 5464535106 Inlet tubing without filter 3650276 Filter titanium 25 ym 36410222 08 gt Numbers in brackets see Fig 3A and 3B see Fig 3C 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Trademark Index Elgiloy Elgiloy Co Hastelloy Haynes Kel F 3M Co Swagelok Crawford Fitting Co Tefzel E I duPont de Nemours amp Co Inc Versilic M G C Verneret Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com World Wide Web www gilson com E mail sales gilson com service gilson com training gilson com World Headquarters Gilson Inc 3000 W Beltline Hwy P O Box 620027 Middleton WI 53562 0027 USA Telephone 1 800 445 7661 or 1 608 836 1551 Fax 1 608 831 4451 Gilson SAS 19 avenue des Entrepreneurs 95400 Villiers le Bel France Telephone 33 1 34 29 50 00 Fax 33 1 34 29 50 20 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com A rtisan Artisan Technology Group is your source for quality Technology Croup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in h
12. RIPTION 13 3 INSTALLATION 17 Mounting the head to the pump module 17 Tubing connections 17 4 OPERATION 19 Solvent delivery 19 Rinsing operation 19 5 PRECAUTIONS FOR USE 20 Startup with a new pump head or piston seal 20 Solvent filtration 20 Solvent miscibility 20 Solvent degassing 21 Changing the flowrate 22 Salinity 22 Viscosity 23 Temperature 23 6 MAINTENANCE 24 Check valves 25 Piston seal 26 Return spring 28 Maintenance kit 29 7 TECHNICAL DATA 30 8 Lisror REPLACEMENT Parts 31 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODUCTION 1 1 WHYUSETITANIUM The Gilson WTi type Piston Pump Heads are specially designed for the stringent purification needs of biotechnology and for ion chromatography where the leaching of metal ions from stainless steel may cause undesirable interference These pump heads combine chemical inertness of pure titanium ASTM Grade 2 Ti gt 99 Fe lt 0 3 with long term performance associated with the piston rinsing chamber This chamber continuously washes the piston for troublefree pumping of high concentration saline solutions While metal ions may be responsible for a loss of enzymatic activity or for interference with purified molecules note that itis also important to use specially purified salts solvents and reagents For information Figure 1 shows the area of pitting corrosion at ambient temperatures for AISI 316L sta
13. bing not supplied For any model 360350400 Thermostatic jacket kit for any model of Gilson piston pump heads Requires cryothermostat not supplied and metallic inlet 3650205 or 3650220 according to pump head model Consists of 1 Thermostatic jacket for pump head 9 ml 316L nickeled brass and PTFE 1 4 Swagelok fittings 3650039 1 Clamp for pump head SC thermostated and 10W standard 3650279 1 Clamp for pump head 10W thermostated 25W and 200W standard 3650415 1 Clamp for pump head 25W and 200W thermostated 3650420 1 Extension and insulation parts for piston pump head Includes piston extension block 3650416 thermal insulation crossbars 3650417 and six screws 4011534165 To be installed on any pump module equipped with heated or cooled pump head LT801187 1 Instruction leaflet This kit allows cooling as well as heating Gilson piston pump heads These heads operate normally from 20 C to 100 C provided that the liquid pumped is chemically compatible with the materials of the pump head 12 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads DESCRIPTION 2 OUTLET 1 Threaded cover Stainless steel 2 Piston tail guide Stainless steel 3 Piston assembly Sapphire and stainless steel 4 Spring spacer Stainless steel 5 Return spring PTFE coated stainless steel 6 Ball housing assembly Stainless steel 7
14. ed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads MAINTENANCE 6 2 CHECKVALVES The Gilson check valves are supplied in clean pre mounted cartridges Each one is strictly checked and individually packed Reliable flowrates are achieved only if the check valves are kept in good operating condition by proper care and maintenance The check valve cartridges must be cleaned or replaced if there is a check valve problem This is indicated by an abnormal loss in flowrate However before assuming a check valve has failed check the possibility of piston seal leakage We strongly advise against disassembling check valves into sub components No check valve sub component is available from Gilson CHECK VALVE CLEANING e Disconnect the outlet tubing e Pumpisopropanolifitis miscible with the current solvent Otherwise pump an intermediate solvent first When the piston pump head is filled with isopropanol stop the flow for 15 minutes or more to dissolve any deposits e Flush out the isopropanol and return to operating conditions e Ifcleaning fails to restore normal performance replace the check valve CHECK VALVEREPLACEMENT e Turn the pump off Disconnect the inlet and or outlet tubing 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MAINTENANCE 6 e Unscrew the inlet and or outlet check valve support screw s items 14 17 items
15. eed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads DESCRIPTION 2 1 Threaded cover Stainless steel 2 Piston tail guide Stainless steel 3 Piston assembly Ceramic and stainless steel 4 Return spring PTFE coated stainless steel 5 Ball housing assembly Stainless steel 6 Housing spacer Stainless steel 7 Rinse body Stainless steel 8 Anti extrusion gasket PCTFE 9 Piston seal HDPE with titanium spring 10 Head body Titanium 11 Inlet check valve cartridge Titanium 12 Inlet check valve support screw Fig 4 Titanium and stainless steel 13 Screws Stainless steel 14 Outlet check valve cartridge Titanium 15 Outlet check valve support screw Fig 4 Titanium and stainless steel Figure 3C Exploded view of 200WTi piston pump head assembly 15 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com DESCRIPTION 2 10WTi and 25WTi SK Stainless steel a Stainless aS Titanium Titanium 55561 SEM 1 Stainless Titanium steel Titanium Figure 4 Inlet and Outlet check valve support screws HA The check valve cartridge is composed as follows Valve ball Ruby e Valve seat Sapphire for 1OWTi and 25WTi Titanium for 200WTi Valve body Titanium 16 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INSTALLATION 3
16. fer to Table IV for solvent miscibility characteristics 20 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads PRECAUTIONS FOR USE 5 Table IV Solvent miscibility ACETIC ACID ER For lower toxicity use DEANE 1 dichloromethane BUTYL ALCOHOL 2 tetrahydrofuran C TETRACHLORIDE CHLOROFORM 3 ethanol CYCLOHEXANE CYCLOPENTANE DICHLOROETHANE DICHLOROMETHANE DIMETHYLFORMAMIDE DIMETHYL SULFOXIDE DIOXAN ETHYLACETATE ETHYL ALCOHOL DI ETHYLETHER HEPTANE HEXANE METHYL ALCOHOL HE nn METHYLETHYLKETONE OCTANE PENTANE PROPYL ALCOHOL DI PROPYLETHER TETRACHLOROETHANE TETRAHYDROFURAN TOLUENE TRICHLOROETHANE WATER E XYLENE MISCIBLE BE imuisciete C TETRACHLORIDE DIMETHYLFORMAMDE jii DIMETHYLSULFOXIDE jjj DIOXAN CHLOROFORM CYCLOHEXANE DICHLOROETHANE BUTYL ALCOHOL DICHLOROMETHANE ETHYLACETATE ETHYL ALCOHOL DI ETHYLETHER METHYL ALCOHOL LPROPYL ALCOHOL DI PROPYLETHER TETRAHYDROFURAN TOLUENE TRICHLORCETHANE HEPTANE CYCLOPENTANE HEXANE ACETIC ACID ACETONE ACETONITRILE BENZENE LOCTANE PENTANE WATER
17. inless steel in high concentration chloride containing acidic solutions In contrast titanium resists corrosion by saturated sodium chloride solutions at ambient temperatures and by hydrochloric acid up to about 5 i e 1 5M and pH approximately 0 1 Inaddition with the ability to rapidly self repair its protective oxide film titanium also exhibits high resistance to erosive and turbulent conditions References P A Schweitzer in Corrosion Resistance Tables M Dekker Inc 1976 K A Chandler in Marine and Offshore Corrosion Butterworths Ltd 1985 p 137 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INTRODUCTION 1 pH adjusted with HCI PASSIVATION CORROSION 1 2 3 4 5 NaCl molarity in water Figure 1 Corrosion area of AISI 316L stainless steel by chloride ions in acidic solutions at ambient temperatures Source Gilson tests 15 samples 600 days 2 UNPACKING ANDSTANDARD ACCESSORIES The Gilson WTi type Piston Pump Head series consists of three models 1OWTi 25WTi and 200WTi The pump head is supplied complete ina kit Fig 2 A and B with its standard accessories shown in Table I II and III The pump head and the rinsing chamber contain isopropanol when delivered 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com INTRODU
18. l in Figure 3 Titanium sapphire ceramic ruby PCTFE polychlorotrifluoro ethylene Kel F HDPE high density polyethylene ETFE ethylene tetrafluoroethylene Tefzel and FEP fluoroethylene propylene Flowrate precision At 20 C and over full working rage coefficient of variation is 0 1 to 0 6 with aqueous solutions or hydro organic polar solvent mixtures and 0 3 to 1 with hydrocarbons or chlorinated volatile solvents Flowrate accuracy At 20 C and over full working range maximum accuracy error with water is for 302 and 303 0 to 2 5 up to 10 MPa for 305 and 306 1 up to 60 MPa 30 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads LIST OF REPLACEMENT PARTS 8 Description Reference number 10WTi 25WTi 200WTi 360551T 360523T 360532T Piston seal PTFE 10 9 5463125095 5463050025 5463140025 HDPE 10 9 5463125896 5463050826 5463140825 Anti extrusion gasket 9 8 3650015K 3650016K 3650273K Inlet check valve cartridge 13 36501701 36501701 11 3650301 Outlet check valve cartridge 16 36501801 36501801 14 3650300 Piston assembly 3 3650010 3650142 3650271 Spring spacer 4 3650037 3650143 Piston tail guide 2 3650027 3650028 3650028 Return spring 5 4 36300058 36300063 36300063 Ball housing assembly 6 5 3650067 3650277 3650277
19. ly repair its protective oxide film In case of very high salinity take care to keep the piston seal well rinsed by circulating water or a non saline aqueous mixture in the rinsing compartment see Section 4 2 22 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads PRECAUTIONS FOR USE 5 7 VISCOSITY There is no direct relationship between the viscosity of the liquid to be delivered and the pumping capability of the head However consider the two following points when dealing with abnormally viscous liquid INLETPRESSURE Positive pressure on the pump inlet avoids cavitation Use hydrostatic pressure by raising the reservoir or apply aslight gas pressurization on the reservoir THIXOTROPIC TEST A check valve ball ruby must rapidly fall down in the considered liquid Otherwise the pump head will not work satisfactorily 8 TEMPERATURE Gilson piston pump heads operate normally from 20 C to 100 C provided that the liquid pumped is chemically compatible with the materials of the pump head see Section 7 Liquids at temperature above 100 C have not been experimented For heating or cooling Gilson piston pump heads use the Thermostatic Jacket Kit 360350400 see Additional Accessories When the pump head is used for pumping hot liquids circulate a cold liquid in the rinsing compartment 23 Artisan Technology Group Quality Inst
20. ost applications arinsing flowrate of 1 10 of the pumping flowrate is sufficient It can be adjusted using the tubing nipper STATICRINSING Filland keep the rinsing liquid in the rinsing chamber capacity 0 25 ml for LOWTi 0 35 ml for 25WTi and 1 9 ml for 200WTi Then renew the rinsing liquid after about 50 hours of operation IR The dynamic procedure is recommended 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com PRECAUTIONS FOR USE 5 1 STARTUP WITH NEW PUMP HEAD OR PISTON SEAL Whenever using anew piston pump head or anew piston seal it is strongly recommended to follow the starting procedure 1 Run the pump without backpressure for 1 2 minutes at 20 of nominal flowrate 2 ml min for 10WTi 5 ml min for 25WTi and 40 ml min for 200WTi with methanol Run the pump at maximum operating procedure for 4 5 minutes checking for any leaks 2 wa Q wm Repeat step 1 for 30 minutes 2 SOLVENT FILTRATION Filter solvents through a 0 45 um membrane filter to minimize clogging of filters in the system The inlet filter attached to the end of the inlet line must be used with all solvents to protect the check valves from particle contamination The reference number for this filter is noted in Figure 5 3 SOLVENT MISCIBILITY When changing solvents make sure that the new solvent is miscible with the previous one Otherwise use an intermediate solvent Re
21. ouse repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment 7 EQUIPMENT DEMOS HUNDREDS OF Instra 2a REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com 7 information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED a gaa tia Contact us 888 88 SOURCE sales artisantg com www artisantg com
22. pecially designed for pumping highly viscous or dense liquids refer to Section 5 7 It consists of a couple of spring loaded check valve cartridges to be substituted for the standard cartridges plus silicone rubber inlet tubing 2000 x 5 x 3 mm and a male luer fitting to be substituted for the standard inlet tubing assembly This kit has been qualified and may be used without the inlet filter I The valve body and spring inside the check valve cartridge are made of stainless steel 10 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads INTRODUCTION 1 3650205 Metallic inlet kit for 5SC 10SC 10WSC 10WTi 25SC and 25WTi pump heads The metallic inlet kit is required for pumping liquids under high pressure at elevated temperatures or doing oxygen free electrochemical analyses It consists of one inlet check valve screw for 1 8 SSI fitting e one stainless steel tubing 316L 2000 x 3 2 x 2 1 mm e two SSI 1 8 ferrules two SSI 1 8 screws For200WTirumrP HEADS 5463140025 PTFE piston seal for 200WTi pump head This PTFE piston seal is black to be easily distinguished from the yellow HDPE seal PTFE seals are the best qualified for alkanes chlorinated solvents tetrahydrofuran and carbon dioxide typically lasting twice as long for those solvents than HDPE seals E The spring inside the piston seal is made of
23. roup Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads MAINTENANCE 6 Guidelines to select the piston seal according to the liquid are given in Section 1 3 REMOVINGTHEPISTONSEAL S e Turn the pump off Disconnect the tubing Remove the head from the pump e Referring to Figure 3 dismount the head as follows To replace the piston seal in the head body follow the steps froma tod as written hereafter To replace the piston seal in the rinse body only follow the steps from a to c a Unscrew the threaded cover 1 b Take out the piston tail guide 2 the piston assembly 3 and the return spring 5 4 c Loosen the two screws 15 13 on the back of the head and remove the ball housing assembly 6 5 and the housing spacer 7 6 d Remove the rinse body 8 7 Remove the anti extrusion gasket 9 8 Carefully take the piston seal out If it remains tightly seated inthe body pry it out withcare in order to avoid damaging the head body 11 10 or rinse body 8 7 Once the piston seal has been removed it must not be re used HA for Fig 3A and 3B for Fig 3C INSTALLING A NEW PISTON SEAL e Inspect the piston and the location of the piston seal ensuring that they are clean undamaged and completely free of particles e Referring to Figure 6 use the piston seal mounting tool Fig 2A 2B item E Fig 2
24. rumentation Guaranteed 888 88 SOURCE www artisantg com MAINTENANCE 6 1 OVERVIEW General maintenance of a Gilson piston pump head irrespective of type and model consists of cleaning check valves and filter replacing parts subject to wear and tear piston seal check valves piston assembly anti extrusion gasket and return spring The case of unattended continuous operation of automatic systems has an increasing practical importance For this reason Table V gives an indication of replacement periods for maintenance parts according to the type of use intensive regular or occasional The data in Table V assumes that the pump is working at half of its maximum flowrate and pressure The nature of the liquid and the pump head model have only a small influence on these figures Table V Indication of replacement periods for maintenance parts according to the type of use Use Intensive Regular Occasional Parts 168 h week 40 h week 10 h week Piston seal 2 3 months 6 9 months 1 year 1300 2000 h 1000 1400 h 500 h Set of check valves 3 6 months 1 year 2 years 2000 4000 h 2000 h 1000 h Piston assembly 6 12 months 2 3 years 5 years 4000 8000 h 2000 3000 h 2500 h Anti extrusion gasket 6 12 months 2 3 years 5 years 4000 8000 h 2000 3000 h 2500 h Return spring 1 year 2 3 years 5 years 8000 h 2000 3000 h 2500 h 24 Artisan Technology Group Quality Instrumentation Guarante
25. t of the rinsing chamber Install the Versilic tubing either for a dynamic or for a static process see Section 4 2 Titanium filter 25 um 36410222 Inlet tubing assemblies 36410218 SSI EN n nut jeta tubing Pale SK ferrule _ Uptight nut rinsing liquid in Versilic tubing rinsing liquid out Titanium fitter 10 ym L Figure 5 Inlet and outlet tubing connections 10WTi 25WT Te al 200WT j Awa tubing i j Versilic tubing Male luer Male luer Tubing nipper 200WT rw A EDE 1 G z 25WTi 10WTi IDI tan filter 10 um 36410218 18 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads OPERATION 4 1 SOLVENT DELIVERY Refer to the pump User s Guide When using anew head see Section 5 1 for information about the starting procedure 2 RINSINGOPERATION Whenever the salt concentration in the elution solvent is higher than0 1M the piston must berinsed in the rinsing compartment The ideal rinsing liquid is free of saline ions but otherwise identical to the elution solvent Water or any appropriate solvent may also be used The rinsing procedure can either be dynamic or static DYNAMICRINSING Circulate the rinsing liquid with gravity or with a peristaltic pump The required rinsing speed depends on the flowrate and the salt content of the pumping solvent In m
26. uaranteed 888 88 SOURCE www artisantg com WTi type Piston Pump Heads MAINTENANCE 6 4 RETURN SPRING Due to fatigue of the steel the return spring 5 4 should not be considered as having an unlimited lifetime We recommend that the spring is changed with every five piston seals used I for Fig 3A and 3B for Fig 3C To change the return spring dismount the pump head by following the instructions described in Section 6 3 Unscrew the threaded cover and remove the piston tail guide the piston assembly the spring spacer and the spring Replace the spring and re assemble the pump head 5 MAINTENANCEKIT For your convenience a maintenance kit for each pump head is available Description Reference number Maintenance kit for 10WTi pump head 364011T Maintenance kit for 25WTi pump head 364012T Maintenance kit for 200WTi pump head 364022 29 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TECHNICAL DATA 7 Pump head Stroke volume Flowrate range Pressure range MPa model ul ml min 302 303 305 306 10WTi 0 050 10 01 21 0 1 60 25WTi 0 125 25 0 1 8 4 0 1 28 200WTi 1580 1 200 0 5 1 0 5 3 5 8 Minimum indicated to obtain specified precision and accuracy Flowrate adjustable down to 0 01 of maximum flowrate 1 MPa 10 bar 145 psi Liquid contact materials see detai
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