Page 42 of Propane and Natural Gas Equipment by National Energy Equipment, Inc.

CANADAS LEADER IN ENERGY PRODUCTS EQUIPMENT  The A1590 consists of a service valve, filling connection and excess flow valve. Made of ductile Iron and stainless steel, these valves are suitable for LP and NH3 service. The A1592 is a combination fill and liquid withdrawal valve with excess flow intended for NH3 service. The A1596 and A1597 series valves have an excess flow valve on the inlet and an integral hydrostatic relief valve that vents hose pressure back to the container when it exceeds the container pressure by 50 PSI. Liquid Fill Withdrawal and Vapor Return Valves NEE # Container Connection Outlet Connection Fill Connection Application 1/4 F NPT Side Outlet A1590B 1-1/4 M NPT 1-3/4 M ACME 1-3/4 M ACME LP or NH3, Filling or Vap. Return w/ Bleed Valve A1590P Plugged A1592R 1 F NPT NH3, Filling or Liquid Withdrawal w/ Hydrostatic valve A1596R None LP or NH3, Liquid Withdrawal 30 GPM xs flw, built in rlf. A1597R 50 GPM xs flw, built in rlf. A1598P Plugged A1599 None 1-3/4 M ACME NH3, Filling or Vapor Withdrawal w/ Back check Valve A1590P A1597R A1596 A1597 A1598 Liquid Withdrawal Rates Valve Withrawal Rate Differential Closing Rate A1596R LPG 35 GPM 13 PSIG NH3 30 GPM A1597 A1598 LPG 55 GPM 13 PSIG NH3 50 ppm A1590 1592 Filling Rates Differential Pressure, PSIG Service 5 10 20 30 40 50 GPM NH3 46 62 85 98 114 119 LPG 39 56 76 90 104 114 A1592 NH3 25 38 52 61 70 78 LIQUID WITHDRAWAL TRANSFER VALVES Vapor or Liquid Service Valves Designed for bulk plant or truck piping systems, these valve can be used for LP gas or NH3 and are supplied with or without excess flow devices for liquid or vapor service. NEE # Tank Connection Outlet Excess Flow Feature AL407P 3/4 M NPT 1/2 F NPT No Plugged 1/4 F NPT side outlet AL407EP Yes AL409P 3/4 F NPT No AL409EP Yes AL477EP 1-1/4 M NPT 1 F NPT AL477ER With Hydrostat valve installed AL478EP 1-1/4 F NPT Plugged 1/4 F NPT side outlet AL479R 1 1/2 M NPT No AL409P

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