Repair Kits Available By Part Number Section 2 Page - GAMECO

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WARNING: Installation, disassembly, repair and maintenance must be performed only by qualified personnel. This valve must remain in the closed position except during product transfer. A line break downstream of the pump may fail to actuate the excess flow valve as the pump may limit flow. If a break occurs in the system, or the excess flow closes, immediately shut down the system. Installation, usage and maintenance of this product must be in compliance with all Engineered Controls International, Inc. instructions as well as requirements and provisions of NFPA #54, NFPA #58, DOT, ANSI, all applicable federal, state, provincial and local standards, codes, regulations and laws. Inspection and maintenance on a periodic basis is essential. Be sure all instructions are read and understood before installation, operation and maintenance. These instructions must be passed along to the end user of the product. CAUTION: Contact or inhalation of liquid propane, ammonia and their vapors can cause serious injury or death! NH3 and LP-Gas must be released outdoors in air currents that will insure dispersion to prevent exposure to people and livestock. LP-Gas must be kept far enough from any open flame or other source of ignition to prevent fire or explosion! LP-Gas is heavier than air and may not disperse or evaporate rapidly if released in still air. Foreword The A3209050 1 1 /4" Internal Valve is designed primarily for use with propane, butane and anhydrous ammonia. It is intended for use as a main valve on small capacity pump systems. It may also be installed in the vapor return line and liquid withdrawal openings on trucks or in-line installations and in nurse tanks provided proper piping configuration is used. How The Valve Works Refer to the drawings in Figure 1. View “A” shows the valve in the closed position, held without leakage by tank pressure and the valve’s closing spring. Actuation of the operating handle alone does not open the valve, it only allows pressure to equalize between the inlet and outlet of the valve by rapid bleeding of the product downstream. This equalized pressure then allows the valve to open via the excess flow spring. The valve is opened by moving the handle to mid-point, see view “B”. This moves the actuator to the equalizing position of the valve stem in the pilot opening, allowing more product to bleed downstream than if the handle was fully open. In a few seconds, the tank and downstream pressure will be equalized, allowing the excess flow spring to push the poppet to the open position, see view “C”. The handle should then be moved to the fully opened position. If the handle is quickly moved to the fully opened position, the pilot valve allows a small amount of bleed downstream, but much less than during rapid bleed, view “B”. This results in a longer pressure equalizing time before the valve can open. NOTE: The poppet will not open until outlet pressure approximates tank pressure! Once the poppet is open, flow greater than the excess flow spring rating, or a sufficient surge in force of the flow, forces the poppet closed against the excess flow spring, as seen in view “D”. The pilot valve in this position is open and allows a small amount of bleed downstream, but much less than during rapid bleed, view “B”. When the operating handle is moved to the closed position, the valve closes and a tight, leakproof seal is re-established as seen in view “A”. Valve Installation The valve may be installed in a full or half coupling. WARNING: Do not install the valve in any piping that will restrict the valve inlet or outlet! After valve, pump and system piping are fully installed, run a thorough leak test using a high quality leak detection solution. The unit must be leak-free before being placed in service. In addition, the system must be tested to assure proper excess flow valve operation by simulating a break downstream at the furthest point being protected at the lowest operating pressure. WARNING: This test must be performed in a safe location, as testing with flammable gas is extremely hazardous. Only authorized trained personnel should perform this test. NOTE: To provide excess flow protection, the flow rating of the pump, piping, valves, fittings and hose on the inlet and outlet sides of the valve must be greater than the flow rating of the valve. Any restrictions that reduce the flow to less than the excess flow valve rating will result in the excess flow valve not operating when required. A3209TL Latch Assembly Installation The A3209TL Latch Assembly for use with the A3209A050, is a remote release mechanism employing a fuse link with a 212° F. melting point. Refer to Figure 2 when installing the latch assembly. 1. Remove lever stop pin located nearest the internal valve outlet with an appropriate wrench. 2. Position latch hole openings with the threaded holes in the valve and insert screws and washers as shown in Figure 2. Secure screws tightly with an appropriate wrench. 3. Check operation by moving the lever to the open position and securing it with the latch. Pull latch outward to return the lever to the closed position. 4. A cable should be run from the latch to a remote release handle. The cable should be taut, and may require pulleys to keep the cable from restricting interference that would prohibit proper operation. The fusible link will melt if exposed to fire or heat over 212° F. CAUTION: Stay clear of the valve lever as it moves to the closed position when unlatching. Cable Control System The cable control system employed must meet the requirements and be in accordance with the provisions of NFPA #58, DOT, ANSI, and all applicable federal, state, provincial and local codes. Valve Operation and Precautions 1. Valve must be opened before starting pump, and before opening valve on pump outlet. 2. Leave pumping system “wet” to avoid drying of seals and to reduce time involved in opening valve. Drain piping only when required by codes or safe operating practices. 3. When piping is dry or at a lower pressure than the tank, open valve half-way for a few seconds to allow line pressure to equalize before fully opening the valve handle. The poppet may not open immediately if the handle is placed in the open position too quickly. 4. Flow surges may close the built-in excess flow valve and should be avoided. If the excess flow valve slams shut; stop the pump, close the nearest downstream valve, and move handle to the mid-point position to equalize pressure until valve reopens with a click, then restart pump and open downstream valve slowly. 5. Always keep valve closed except during product transfer. 6. Completely open all valves during pumping. <strong>Part</strong>ially closed valves may prevent excess flow valve from closing when required, even in a properly designed piping system. 7. All personnel must be aware of remote closure locations and their operation in case of an emergency. They must also be aware of the equalizing opening through which bleeding can occur after the excess flow valve closes. If this bleed is not stopped by closing a downstream valve, a hazard may occur. Troublshooting 1. Internal Valve Will Not Open Causes may be excess leakage downstream, pump engaged too quickly, excessive wear of the valve, or ice accumulation. When there is excessive volume downstream, a greater amount of time is required to equalize tank and downstream pressure.
To determine if the pilot seat is opening, install a pressure gauge downstream of valve outlet while keeping the system closed downstream of the pressure gauge. Open any hand valves between the valve and pressure gauge, and open internal valve. Pilot seat is not opening if pressure does not build up to tank pressure. Perform this test with the pump off. A broken internal part may cause the pilot seat not to open. 2. Premature Valve Closure First, check to see that the operating lever is properly connected and fully opens the valve. Premature closure may also be a result of; engaging pump too quickly, sudden line surges, and under rated excess flow spring or an obstructed inlet port. 3. Valve Will Not Close Usually the result of a faulty or sticking actuator. Check the actuator to see that it works freely by cycling it several times with the lever. If it sticks in the open position, repairs are required. Internal damage will also cause the valve not to close. 4. Low Flow Capacity Downstream piping may be too small and/or long, the internal valve may be too small, the valve inlet may be restricted, there may be downstream restrictions or a bypass valve could be stuck in the open position. All are possible causes of low flow. Figure 1 – Valve Operation Maintenance Potential problems may be eliminated with preventative valve maintenance. Perform the following steps once a month. 1. Check to see that the operating lever moves freely and smoothly. Check for leakage around the stem and sealing gland with a high quality leak detection solution. Leakage will require replacement of the sealing gland packing. A sticking lever indicates trapped foreign material or mechanism wear. 2. Check both seat discs for tight closure. Close internal valve and exhaust downstream pressure. Be sure piping is warmed to an ambient temperature. Install a pressure gauge between internal valve and first downstream valve. Close the first downstream valve and observe for pressure build-up between the two closed valves with pressure gauge. If leakage occurs, replacement of both seat disc will be required. 3. Inspect, clean and lubricate all operating controls. Check controls to see the they open valve fully and that they freely close the valve. Worn parts should be replaced. 4. Remove valve if the tank is to be steam cleaned. Heat may damage the valve seals and seats. 5. Valve is not designed for water service. After tank is hydrostatically tested, immediately remove all water and allow tank to thoroughly dry out before installing valve. A B C D Bleed Bleed Flow Flow Limited Bleed Limited Bleed Fully Closed Rapid Bleed Fully Open Excess Flow Closed Figure 2 – Latch Assembly Installation A3209A050 1 1 /4" Internal Valve Sealing Gland Operating Lever Fusible Link (212 o F) Washers Lever Stop Pin Latch Assembly Bolts
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General Instructions, Notices, and
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General Instructions, Notices, and
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Repair Kits Available By Part Numbe
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Kits Available for Obsolete Part Nu
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WARNING: Installation, disassembly,
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6. Carefully place the new disc ret
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of the poppet stem. 8. Lubricate ne
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3. Apply loctite to the threads of
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A3217F-50 Repair Kit for A3217FL &
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1. Lubricate existing outer stem be
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Disc Holder Subassembly 1. Assemble
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Disc Holder Subassembly - 1. Assemb
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8. Assemble the cotter pin into the
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to the closed position when release
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7188 Master Cylinder Repair Instruc
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ushing until holes are aligned. 9.
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7605B-50 and A7605B-50 Repair Kits
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9. Remove the plate gasket and disc
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Lock Lever Lever Spring Lever Pin A
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Flomatic Parts Key Component Part N
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Figure 4D: Exploded View of Flomati
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WARNING: Installation, usage and ma
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Figure 4 Auxiliary Release System O
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7781AF Emergency Shut-Off Valves In
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Cable Attachment — see Figures 1
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A7883FK & A7884FK Flomatic Internal
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Key Components Flow Characteristics
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Relief Valve Replacement Before ins
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SUGGESTED MAINTENANCE GUIDE MultiPo
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Repair Kits Available By Part Number Section 2 Page - GAMECO

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