Enardo Model 450 and 550 Pressure/Vacuum Relief Valve - Shav
Contents
1. Product Warranty Limited Warranty Seller warrants to the extent stated herein all Products manufactured by it are free from original defects in workmanship or material for a period of twelve 12 months During such 12 month warranty period Seller at its option will repair or replace any defective Products returned to Seller s factory transportation charges prepaid Seller will not be responsible for and this limited warranty shall not apply to any failure of or damage to any Products caused by 1 abuse misuse neglect improper handling or installation or lack of proper maintenance 2 shipping damage 3 repair alteration or modification made outside of Seller s factory or 4 acts of God accident collision fire theft vandalism riot explosion lightning windstorm hail flood water or other cause other than ordinary use DISCLAIMER THE FOREGOING LIMITED WARRANTY AND LIMITATIONS ARE THE SOLE AND EXCLUSIVE WARRANTIES GIVEN BY SELLER AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED THE REMEDIES OF BUYER UNDER THE FOREGOING WARRANTY ARE EXCLUSIVE AND BUYER HEREBY WAIVES ALL OTHER WARRANTIES GUARANTIES OBLIGATIONS LIABILITIES RIGHTS AND REMEDIES EXPRESS OR IMPLIED WHETHER ARISING BY LAW OR OTHERWISE SELLER EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF DESIGN AND ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABI2. 14 Pallet Assemblies 316 stainless steel with FEP Teflon seals Part Number Pallet Location Model Valve Size in 550 2 550 3 550 4 550 6 550 8 550 10 550 12 450 2x3 450 3x4 450 4x6 450 6x8 450 8 10 450 10x 12 450 12x 14 450 550 O M Manual Rev C 7 15 05 Gasket Sets Includes body and lid gaskets and pallet seal Material Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Compressed Fiber Teflon Part Number 6105001 6105003 6105004 6105006 6105007 6105009 6105010 6105012 6105013 6105015 6105016 6105018 6105019 6105021 6105022 6105024 6105025 6105027 6105028 6105030 6105031 6105033 6105034 6105036 6105037 6105039 6105040 6105042 15 Model Valve Size in 550 2 550 2 550 3 550 3 550 4 550 4 550 6 550 6 550 8 550 8 550 10 550 10 550 12 550 12 450 2x3 450 2x3 450 3x4 450 3x4 450 4x6 450 4x6 450 6x8 450 6x8 450 8 10 450 8x 0 450 10x 12 450 10x 12 450 12x 14 450 12x 14 450 550 O M Manual
3. 8853729 8853708 8853730 8853709 8853731 8853710 8853732 8853711 8853733 8853712 8853734 8853713 8853735 8853714 8853736 8853715 8853737 8853716 8853738 8853717 8853739 8853718 8853740 8853719 8853741 8853720 8853742 8853721 Seats Aluminum 8853743 8853744 8853745 8853746 8853747 8853748 8853749 8853750 8853751 8853752 8853753 8853754 8853755 8853756 8853757 8853758 8853759 8853760 8853761 8853762 8853763 13 Replacement Parts Description Pressure Seat 2 Pressure Seat 3 Pressure Seat 4 Pressure Seat 6 Pressure Seat 8 Pressure Seat 10 Pressure Seat 12 Pressure Seat 2 Pressure Seat 3 Pressure Seat 4 Pressure Seat 6 Pressure Seat 8 Pressure Seat 10 Pressure Seat 12 Vacuum Seat 2 Vacuum Seat 3 Vacuum Seat 4 Vacuum Seat 6 Vacuum Seat 8 Vacuum Seat 10 Vacuum Seat 12 Series 450 450 450 450 450 450 450 550 550 550 550 550 550 550 450 550 450 550 450 550 450 550 450 550 450 550 450 550 450 550 O M Manual Vacuum 8850401 8850402 8850403 8850405 8850407 8850409 8850411 8850401 8850402 8850403 8850405 8850407 8850409 8850411 Rev C 7 15 05 Pressure 8850401 8850402 8850403 8850405 8850407 8850409 8850411 8850401 8850402 8850404 8850406 8850408 8850410 8850412
4. Included in replacement pallet Assy 3 Included in gasket kit Rev C 7 15 05 Model 450 PVRV Typical Parts List UPPER BODY SHOWN ROTATED 90 FOR CLARITY 450 550 O M Manual 11 Ref Description Notes No 01 Stud Vent Assy 02 Hood Vent 03 Screen Pressure 04 Guide Assy Pallet 05 Pallet Pressure 2 1 06 Seat Pressure 1 07 Stem Pallet Pressure 1 08 Body Lower 09 Stem Pallet Vacuum 1 10 Pallet Vacuum 1 11 Seat Vacuum 1 12 Seal Pallet 1 13 Support Seal 1 14 Screen Vacuum 15 Lid Vacuum 16 Gasket Vacuum Lid 1 3 17 Washer Flat 18 Cap Screw Lid 19 Washer Flat 2 20 Nut Hex 2 21 Gasket Vacuum Seat 1 3 22 Nut Wing 23 Nut Hex 24 Cap Screw 25 Washer Flat 26 Plate Identification 1 Normal replacement item 2 Included in replacement pallet Assy 3 Included in gasket kit Rev 7 15 05 Model 550 Typical Parts List ac E B E 0 5 em mf d 0 Sey e ee x 450 550 Manual 12 Rev C 7 15 05 Part Number Carbon Steel Stainless Steel 8853722 8853701 8853723 8853702 8853724 8853703 8853725 8853704 8853726 8853705 8853727 8853706 8853728 8853707
5. ISO 9001 DNV Certification REGISTERED FIRM Enardo Model 450 and 550 Pressure Vacuum Relief Valve PVRV User s Manual Enardo 4470 S 70 East Ave Tulsa OK USA 74145 4607 450 550 O M Manual 1 Rev C 7 15 05 Enardo Pressure Vacuum Relief Valve User s Manual Rev C 7 15 05 Table of Contents Product siae ooo recs odeur ea Valve ODPEAHOR cei t sS ee Valve Maintenance ee a Weight Informations dena Model 450 Typical Parts 5 Model 550 Typical Parts LiIst Replacement Parts Pallet Assemblies 316 stainless steel with FEP Teflon seals Product 450 550 O M Manual 2 Product Description Thank you for purchasing the Enardo Pressure V acuum Relief Valve With proper installation usage and preventative maintenance the Enardo PVRV can supply many years of pressure vacuum relief with continuous sealing abilities that meets the most stringent industry standards 1 scfh 90 set point per valve Model 450 Pressure Vacuum Relief Valve Pipe Away Model 550 Pressure Vacuum Relief Valve Vent to Atmosphere 450 550 O M Manual 3 7 15 05 Model 450 Pipe Away FEATURES 1 Stain
6. LITY It is understood that Seller has no special knowledge of Buyer s operations or requirements and Buyer agrees that the items of purchase are being purchased because of the independent determination made by Buyer of their suitability for intended use Limitation of Liability SELLER WILL NOT BE LIABLE FOR ANY LOSSES COSTS FORFEITURES OR OTHER DAMAGES WHETHER DIRECT OR INDIRECT AND WHETHER OR NOT RESULTING FROM OR CONTRIBUTED TO BY THE DEFAULT OR NEGLIGENCE OF SELLER ITS AGENTS EMPLOYEES OR SUBCONTRACTORS WHICH MIGHT BE CLAIMED AS A RESULT OF THE USE OR FAILURE OF THE ITEMS OF SALE IN NO EVENT WILL SELLER BE LIABLE FOR SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION LOSS OF USE LOST REVENUE LOST PROFITS OR LIABILITIES OF BUYER TO ITS CUSTOMERS OR THIRD PERSONS ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE PRODUCTS WHETHER IN AN ACTION BASED UPON CONTRACT OR TORT INCLUDING NEGLIGENCE IN NO EVENT WILL SELLER S TOTAL LIABILITY FOR ANY DAMAGES IN ANY ACTION BASED ON CONTRACT OR TORT ARISING OUT OF OR IN CONNECTION WITH THE PRODUCTS EXCEED THE TOTAL AMOUNT PAID BY BUYER FOR THE PRODUCTS Enardo 4470 S 70 East Ave Tulsa OK 74145 4607 918 622 6161 FAX 918 622 0004 800 336 2736 US and Canada sales enardo com 450 550 O M Manual 16 Rev C 7 15 05
7. and replacement of gasket Again care must be taken not to damage the seals Body Gaskets Requires disassembly Provided with gasket repair kit Seats Requires gasket to be replaced as well Weights Requires removal of lid and replacement of gasket on Model 450 Pipe Away valves The customer must be careful to install the proper weights in the right location In most cases it is not necessary to return the valves to the factory If the valve needs to be tested and certified at a specified pressure and or vacuum it should be returned to the factory or else sent to a qualified valve repair facility that is capable of performing the necessary tests in accordance with API Bulletin 2521 recommendations Contact Enardo with any questions or additional assistance you may need for repairing your valve 450 550 O M Manual 10 Rev C 7 15 05 Notes W pb p p pah Description Lid Pressure Body Upper Lid Vacuum Body Lower Seat Pressure Seat Vacuum Pallet Pressure Stem Pallet Seal Pallet Support Seal Gasket Lid 2 Pallet Vacuum Gasket Press Seat 2 Gasket Vacuum Seat Screen Vacuum Cap Screw Lid Washer Flat Cap Screw Nut Hex Washer Flat Cap Screw Washer Flat Plate Identification Ref 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 Normal replacement item 2
8. e stem 450 550 O M Manual 8 Rev C 7 15 05 Weight Information The Enardo PVRV can achieve various pressure and vacuum settings in units of ounces oz or inches of water column in Standard Enardo valve pallets installed alone reach minimum settings of 2 oz When a valve requires a setting higher than the 1 2 oz standard pallet setting weights must be used to increase the pallet s ability to achieve the required setting Enardo weights also come in units of ounces 02 or inches of water column in The individual setting of each weight is either etched or imprinted into the weight Standard Enardo weights allow the user to stack in increments of 1 4 oz 1 oz 2 1 2 oz WC 2 WC Note When the oz weight is added to the 1 2 oz pallet the resulting pressure will be 1 WC This approach may be taken if inch WC units are preferred Your Enardo PVRV shipment will include prepackaged weight kits to use to achieve the proper settings for the valve you ordered The package labeled PRESSURE goes on the pallet in the pressure chamber The package labeled VACUUM goes on the pallet in the vacuum chamber All of the weights in these packages should be installed If one or neither of these packages is included with your order then they are not needed A common question is What if my pressure and vacuum weights get mixed together If this happens the weights need to be sorted and reorganized When instal
9. g the valve with flutter or oscillation may cause premature valve damage or wear over time Enardo PVRV flow charts designate the flutter zone to assist with correct valve sizing Contact Enardo with any questions or additional assistance 450 550 O M Manual 5 Rev C 7 15 05 Rev C 7 15 05 FLUID LEVEL LIQUID Pressure Flow I FLUID LEVEL LIQUID Vacuum Flow 450 550 O M Manual 6 Valve Installation Warning Make certain line is free of hazardous vapors before installing or servicing the valve Follow the instructions below for the installation of an Enardo PVRV Attach the valve to the appropriate mating flange using proper gasketing To insure proper function the valve must be installed to a level surface so the pallet will move vertically Units that are tilted during usage may suffer premature damage or wear Loosen fasteners on top of the valve and remove the lid hood or guide Remove valve pallets from the unit Separate the protective cardboard coverings from the pallets being careful not to damage the pallet seal surface Reinsert uncovered valve pallets back into the unit 4 NOTE Pallet should be centered inside unit Do not force the lid down over the pallet stem With correct installation the lid should slip easily over the stem To adjust valve settings higher than minimum use the weights to increase the pressure setting Weights are packed separately within t
10. he unit shipping package and are labeled PRESSURE and or VACUUM If weights are shipped with the unit they should be installed onto the pallets in the valve chamber in which they are labeled Gently slide the weights onto the pallet stem and down on top of the valve pallet For more detail on using weights to adjust the pallet setting read the section titled Weight Information Replace any lid hood or guide that was previously removed and fasten securely When tightening down lids make sure the lid gasket has full contact with the sealing surface Bolts should not be used to force lid into place The lid should sit down evenly on the valve without the use of any hardware to drive it onto the valve 5 NOTE Before using your new Enardo make sure that your valve is properly set for the appropriate pressure and vacuum settings Early or delayed relief could result in tank damage 450 550 O M Manual 7 Rev C 7 15 05 Valve Maintenance Warning Make sure line is free of hazardous vapors before installing servicing or removing the valve It is possible to perform some service while the valve is installed on the tank provided all necessary safety precautions have been taken The sealing performance of the 450 550 Series PVRV is dependent on having a well maintained product with clean and undamaged pallet seals and seats To access the pallets 1 Loosen fasteners on top of the valve and remove the lid h
11. less Steel Pallet with FEP Teflon Seal 2 Replaceable Seats X 3 Ameron System 1 Coating GT 4 High Capacity Flow Qn MU 450 550 O M Manual 4 Rev C 7 15 05 Model 550Vent to Atmosphere FEATURES 1 Stainless Steel Pallet with FEP Teflon Seal 2 Replaceable Seats 3 Ameron System 1 Coating 4 High Capacity Flow Valve Operation The Enardo PVRV maintains a tight seal until system pressure or vacuum exceeds the set pressure of the valve Set pressure is adjusted by stacking a series of weights onto the valve pallet When over pressure occurs the weighted pallet lifts breaking the seal between the seat and pallet This allows vapors to pass through the valve orifice and relieve pressure buildup The valve re seals upon relief and remains sealed It is important to know that relieving vapors near the set pressure in a continuous manner may cause the pallet to flutter or oscillate inside the valve chamber This is common to products of this type Operatin
12. ling weights for the Enardo PVRV find the required settings for the valve located on the tag attached to the unit Then add weights to the pallet that will give you the required setting For example if you have a valve pallet that requires a setting of 6 oz you will need to add weights totaling an additional 5 1 2 oz the pallet alone achieves 1 2 oz setting Therefore the weights to be added must total the remaining balance of the required setting which in this example is 5 1 2 oz To achieve settings higher than 1 2 oz weights must be stacked onto the pallet Valve Repair The valve should be removed from the tank before attempting any repairs beyond pallet assembly and weight replacements Most repairs will consist of replacing pallet seals lid gaskets and in some cases the body gaskets The seats are also replaceable if the need arises These repairs are relatively simple and can normally be handled by plant maintenance personnel using common hand tools Most valve maintenance can be performed by the customer or by a valve repair facility These include 450 550 O M Manual 9 Rev C 7 15 05 Part Replacement Pallet Seals Simple replacement Provided with gasket repair kit along with other gaskets The pallet seals are fragile and should be handled carefully to avoid damage They must never be folded or creased Never use abrasive cleaners on a pallet seal Pallet Assemblies Drop in replacement Requires removal of lid
13. ood or guide The pallets and weights will then be accessible 2 Remove any valve pallets and weights from the unit Keep in mind that these will be reinstalled so keep track of the chamber from which they were removed 3 Inspect the pallets for any damage or buildup that may affect its sealing characteristics or its ability to move properly inside the valve If necessary gently clean the pallet and seal with a suitable solvent and nonabrasive cloth Never fold or crease the seal If the seal is damaged it must be replaced 4 Clear away any buildup that may be on the weights 5 Inspect the valve seats installed in the unit The sealing surfaces should be smooth and free of nicks or buildup If necessary gently clean the seats with a suitable solvent and nonabrasive cloth 6 If your valve has a lid clean any buildup that may exist in or around the guide hole located in the center of the part 7 Clear away any blockage in the pressure or vacuum screens that may impede proper flow 8 Reinstall valve pallets and weights into their proper chambers 9 Reinstall weights onto their appropriate valve pallets 10 Replace any lid hood or guide that was previously removed and fasten securely When tightening down lids make sure the lid gasket has full contact with the sealing surface NOTE Pallet should be centered inside unit Do not force the lid down over the pallet stem With correct installation the lid should slip easily over th
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