Repair Kits Available By Part Number Section 2 Page - GAMECO

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WARNING: 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. This valve must remain in the closed position except during product transfer. A line break downstream of the pump may limit flow. If a break occurs in the system, or the excess flow closes, immediately shut down the system. Inspection and maintenance on a periodic basis is essential. Installation and maintenance should be performed only by qualified personnel. 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 will not disperse or evaporate rapidly if released in still air. Foreword The A3210A065 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 pump systems with small capacity such as a motor fuel dispensers. It may also be installed in the vapor return line and liquid withdrawal openings on trucks and in nurse tanks, provided the proper piping configuration is used. A pneumatic actuator, ECII ® # A3210PA, is available to provide a means of opening and closure of the valve using propane or air. The A3210PA requires only 10 PSIG inlet pressure for proper operation. How The Valve Works Refer to the drawings in Figure 1. View "A" shows the valve held closed by tank pressure and the valve's closing spring. Actuation of the operating lever 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 internal spring. The valve opens by moving the operating lever to the mid-point, see view "B". This position allows the actuator to put the equalizing portion of the valve stem in the pilot opening, allowing more product to bleed downstream than if the lever was fully open. In a few seconds, the tank and downstream pressure will be nearly equal. The excess flow spring will push the main poppet to the open position, see view "C", and the lever should be moved to the fully opened position. If at first, the lever 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 main valve can open. NOTE: Main poppet will not open until outlet pressure approximates tank pressure! Once the main poppet is open, flow greater than the excess flow spring rating, or a sufficient surge in force of the flow, forces the main poppet closed against the excess flow spring, see 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 lever 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 A3210A065 1 1 /4" Internal Valve must be installed in a modified half coupling or the equivalent, see Figure 2. If mounted in a half coupling, the inside diameter must be machined out to 1 1 /2" diameter. If used in a reducing bushing, the inside diameter must be machined out to 1 1 /2" diameter – 3 /4" to 1" of the inside thread must be left and the remaining portion of the inside diameter must be machined to a wall thickness of 1 /4", see Figure 3. WARNING: Do not install the valve in a full coupling or in any piping that will restrict the valve inlet! After valve, pump and system piping are fully installed, run a thorough leak test on all joints using a high quality leak detection solution. The installation must be leak free before being placed in service. In addition, the system must be tested for excess flow valve operation by simulating a break downstream at the furthest point being protected. 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. Cable Control System The cable control system selected must operate the valve without restricting free closing of the operating lever. One suggested method employs a simple return spring to overcome cable system friction, see Figure 2. The lever housing may be rotated 360° to accommodate actuation by cable from any direction. This is done by loosening the retaining screws, rotating the housing to the desired position, and securely re-tightening the screws. NOTE: Be sure the upper face of the lever housing is snug against the body shoulder when screws are tightened. The cable control system employed must meet the requirements and provisions of NFPA #58, DOT, ANSI, and all applicable federal, state, provincial and local codes. Valve Operation 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 lower pressure than the tank, open valve half-way for a few seconds to allow line pressure to equalize before fully opening the valve lever. The main poppet may not open immediately if the lever is placed in the open position too quickly. 4. Flow surges may close the built-in excess flow valve and must be avoided. If the valve slams shut, stop the pump, close the nearest downstream valve, and move lever to midpoint position to equalize pressure until valve re-opens with a click; then restart pump and open downstream valve slowly. 5. Always keep valve closed except during product transfer. 6. Completely open all hand valves during pumping. Throttle type valves may prevent excess flow valve from closing when required. 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 the valve, a hazard may occur. Troubleshooting 1. Internal Valve Will Not Open Causes may be excess leakage downstream, pump engaged too quickly, excessive wear of valve or ice freezing of poppet. 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, open any hand valves between valve and pressure gauge, and open valve. Pilot seat is not opening if pressure does not build up to tank pressure. Perform this test with 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 be a result of engaging the pump too quickly, sudden line surges, an underrated /weak excess flow spring or an obstructed inlet port. 3. Valve Will Not Close Usually a result of a faulty or sticking actuator. Check 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, internal valve may be too small, the valve inlet may be restricted, possible downstream restrictions, or a bypass valve stuck in the open position are possible causes of low flow. Maintenance Potential problems may be eliminated with preventive internal valve maintenance. Perform the following steps once a month: 1. Check to see that the operating lever moves freely and smoothly. There should be no leakage around the lower stem or seal housing. Leakage requires replacement of the seal housing packing. A sticking lever indicates trapped foreign material or mechanism wear. 2. Check both seat discs for tight closure. Close valve and exhaust downstream pressure. Be sure piping is warmed to an ambient temperature. Close the first downstream valve and note pressure buildup between the two closed valves with a pressure gauge. If leakage occurs, replace both seat discs. 3. Inspect, clean and oil all operating controls. Check controls to see that they open valve fully, but do not over travel the valve operating lever. See that they work freely to close the valve. Worn parts should be replaced. 4. Remove valve if the tank is to be steamed cleaned. Heat may damage the valve's seals. 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. Figure 1 — Valve Operation A B C D Bleed Bleed Flow Flow Limited Bleed Limited Bleed Fully Closed Rapid Bleed Fully Open Excess Flow Closed Figure 2 — Valve Installation Modified Half Coupling or Equivalent 3 /4" to 1" Fusible Link (212 o F. Melting Point) 1 /4" Cable Figure 3 — Reducing Bushing Return Spring
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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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Figure 4 Auxiliary Release System O
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WARNING: Installation, usage and ma
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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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