Mounting and Operating Instructions EB 2090 EN
Contents
1. brass or welding ends stain less steel Body with connection Valve seat with soft sealing Set point adjuster Cap Lock nut NO Positioning spring Tubular plug Temperature sensor Connection nut with spherical liner accessories ON Connection nut with flat gasket accessories Fig 3 Functional diagram of Type 2040 Safety Temperature Monitor 2090 5 Installation 2 Installation Connection fittings accessories must be pro vided at the site of installation Note Do not install the regulator directly next to an air vaporizer Otherwise the regulator could close due to the low outdoor temperature The closing function of the regulator does not de pend on whether the sensor temperature is determined by the outdoor air or by the me dium For outdoor installation we recommend an adjusted set point temperature of 37 C to gether with the point at which the regulator starts to close at 20 C set point range 45 to 10 Turns of the set point adjuster Fig 4 Adjustment diagram at a set point temperature 6 EB 2090 EN 10 5 0 5 et poin The following points generally apply The regulator can be installed in any de sired position The direction of flow must match the ar row on the valve body 3 Set point adjustment See Figs 3 and 4 The safety temperature monitor has been ad justed by the manufacturer to a set2. Connecting parts with flat gasket Soldering nipple brass Welding ends stainless steel Dimensions in mm DN 15 DN 25 Dimensions in mm L3 100 For pipe 16 For pipe 28 Height H1 Without set point indication H1 108 1 mm With set point indication H1 116 1 mm Weight 1 8 kg without connecting parts Fig 5 Dimensions 2090 9 Technical data 7 Technical data Table 1 Technical data All pressures in bar gauge Type 2040 Safety Temperature Monitor Body connection 1 see Fig 4 for connecting parts Kys coefficient 5 Set point ranges 30 C to 10 C 45 C to 10 Max perm operating pressure Max perm differential pressure Ap 40 bar 25 bar Leakage rate lt 0 05 of Kys at 10 C 0 1 of Kys at 45 C Hysteresis 2 Accuracy ELC Permissible temperature range 60 C to 60 C Temperature differential between open closed 1 On request 17K Table 2 Materials Material number according to DIN Type 2040 Safety Temperature Monitor Body 491 G CuSn5ZnPb Bellows CW453K CuSn8F40 Spring 1 4310 O ring NBR Seat CW617N CuZn40Pb2 NBR Tubular plug 10 2090 EN 1 4571 1 4404 8 Nameplate Laser inscription on the regulator body Set point temperature with unit Flow of direction Production num
3. how may turns of the set point adjuster Fig 4 are required Turn the set point adjuster clockwise by the determined number of turns Lock set point adjuster 3 with the lock nut 3 2 and screw cap 3 2 back on Set point adjustment Secure setting if necessary with sealing wire through the holes in the cap and valve 3 2 Set point adjuster with set point indication In a special version the set point adjuster is fited with a marked ring for set point indication The distance between two marks corresponds to a temperature difference of approx 10 10 2090EN 7 Maintenance 4 Maintenance CAUTION Prior to performing any work on the regula lors decommission the plant by slowly clos ing the shut off valves Depressurize and de pending on the process medium drain the plant section as well CAUTION Regulators for oxygen service are labeled to indicate that the regulators must be kept free of oil and grease for oxygen service Sauerstoff Oxygen i Oxyg ne These versions are cleaned and assembled under special conditions Gloves must be worn when exchanging parts which come info contact to oxygen These parts must not come into contact with oil or grease When returning regulators for oxygen service SAMSON for repair the sender is respon sible for ensuring that the regulators are han dled in conformance with the specifications in the German regulation VBG 62 or equivale
4. point tem perature limit of T e point 710 C set point range from 30 to 10 or 37 C set point range from 45 to 10 After removing the cap 3 1 and undoing the lock nut 3 2 the required set point temperature point can be adjusted within the set point range using the set point adjuster 3 Turns of the set point adjuster Tset point 10 C 10 C point at which regulator starts to close Use the adjustment diagram Fig 4 as guide to change the set point temperature from the default setting One turn of the set point adjuster corresponds to a change in set point temperature of approx 13 K The set point temperature together with the point at which the regulator starts to close shift to lower temperatures when the set point adjuster 3 is turned clockwise 3 New adjustment Adjustment of the set point temperature from an unknown setting Note The ambient temperature must be within the set point range Remove cap 3 1 and undo lock nut 3 2 Make sure that the medium flow and outside air have the same tempera fure Turn the set point adjuster 3 counter clockwise until the flow noise inside the regulator ceases i e the valve is closed Calculate the temperature difference be tween the momentary ambient temperature and the required set point temperature Tset point to be adjusted Divide the calculated temperature differ ence by 13 The result shows
5. Self operated Temperature Regulators Safety Temperature Monitor STM Type 2040 Fig 1 Type 2040 Safety Temperature Monitor Ce Mounting and Operating Instructions EB 2090 EN Edition July 2010 Contents Contents 1 2 3 3 1 3 2 4 Design and principle of operation 4 6 Set point 6 New adjustment 7 Set point adjuster with set 7 8 SAVIE uus s x eee 8 Dimensions 9 Technical data 10 11 Definitions of the signal words used these instructions CAUTION Note Indicates supplementary explanations Indicates a hazardous situation which if not information and tips avoided could result in minor or moderate injury 2 EB 2090 EN Safety instructions General safety instructions The regulator may only be mounted started up or operated trained and experienced personnel familiar with the product According to these mounting and operating instructions trained personnel refers to individuals who are able to judge the work they are assigned to and recognize possible dangers due to their specialized training their kno
6. ber 3 Model number with modification index Valve coefficient Ky 5 Test mark 1 Keep regulator free of oil and grease 1 Omitted at a set point temperature between 31 C and 45 C Fig 6 Nameplate specifications Nameplate 2090 EN 11 SAMSON MESS UND REGELTECHNIK Weism llerstraBe 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 2090 EN S Z 2010 08
7. e association The test mark is available on request An EC type examination according to Pressure Equipment Directive 97 23 EC Module B has been performed on the Type 2040 Safety Temperature Monitor 2090 3 Design and principle of operation 1 Design and principle of oper ation The Type 2040 Safety Temperature Monitor protects downstream plants against exces sively low temperatures in applications in volving the storage of cryogenic media as well as liquids gases and vapors These safety temperature monitors close whenever the medium temperature falls be low the adjusted temperature set point limit to prevent cold media entering the connected consumer plant The safety temperature monitor consists of the body 1 with integrated temperature sensor 6 and set point adjuster 3 It operates ac cording to the liquid expansion principle The volume of the temperature sensitive filling medium confined in the integrated tempera ture sensor 6 expands as the temperature rises and contracts again as the temperature falls The valve is normally open If the me dium temperature falls below the adjusted set point when the medium is too cold the liq uid inside the sensor contracts and the tubular 0 20 Tset point Fig 2 Control behavior EB 2090 EN plug 5 is pushed by the positioning springs 4 against the soft sealed seat 2 As the me dium temperature drops the plug moves in the closin
8. g direction restricting the medium flow If the medium temperature drops fur ther the valve is closed completely when the temperature reaches the adjusted set point The set point temperature and the throttling range in front of it can be adjusted within the set point range The valve first opens again when the medium temperature has exceeded the adjusted set point by 2 K The temperature span between the adjusted set point temperature T set point and the point at which the regulator starts to close is 17 K The valve is fully open Ky 5 at a medium tem perature of gt point 17 At a medium temperature less than Tset point 17 the me dium flow is already throttled and the Ky co efficient gets smaller Fig 2 If the sensor system is defective the valve closes fail safe position AT 17 K temperature differential between open and closed throttling range Tset point 20 point at which the regulator starts to close The regulator starts to close when the medium temperature has dropped below a value which is still approx 17 K above the adjusted set point Design and principle of operation eA 14 es ry Ta a gt ONERE NY ppp LIAS ACA NEB N Som Nam ef V CA Connection nut with soldering nipples brass or welding ends stainless steel Connection nut with flat gasket Connection with soldering nipples
9. nt regulations until receipt at SAMSON If this is not the case SAMSON will not assume any responsibility for the suitability of these regulators for oxygen service If the point at which the regulator closes devi ates strongly from the adjusted set point shut off may be impaired because the seat and plug are clogged up with dirt or due to natu ral wear In this case remove the regulator from the pipeline and clean it If necessary replace the plug seal with a new one 8 EB 2090 EN 5 Service If malfunctions or defects occur contact the SAMSON After sales Service for support The addresses of SAMSON its subsidiar ies representatives and service facilities worldwide can be found on the Internet at www samson de a SAMSON product cat alog or on the back of these mounting and operating instructions Include the following details when making in quiries Type and nominal size of the regulator Process medium Set point temperature range Production number 3 Model number with modification index Flow rate in m h Installation drawing indicating the exact location of the regulator e g outdoors or indoors and all additionally mounted units shut off valves pressure gauges etc Dimensions 6 Dimensions Co SON 11 ILL NAI USE au Connecting parts with spherical liner
10. wledge and experience as well as their knowledge of the relevant standards All safety instructions and warnings in these mounting and operating instructions particularly those concerning assembly start up and maintenance must be observed For appropriate operation make sure that the regulator is only used in applications where the operating pressure and temperatures do not exceed the operating values based on the sizing data submitted in the order Note that the manufacturer does not assume any responsibility for damage caused by external forces or any other external factors Any hazards which could be caused in the regulator by the process medium or operating pressure are to be prevented by means of appropriate measures The Type 2040 Safety Temperature Monitors do not have their own potential ignition source according to the ignition risk assessment stipulated in EN 13463 1 2001 section 5 2 even in the rare incident of an operating fault Therefore they do not fall within the scope of Directive 94 9 EC The regulator complies with the requirements of the European Pressure Equipment Directive 97 23 EC The declaration of conformity issued for a valve bearing the CE marking includes information on the applied conformity assessment procedure The declaration of conformity can be provided on request T V typetesting EC type examination The Type 2040 Safety Temperature Monitors are typetested by TUV German technical surveil lanc
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