Page 80 of Propane and Natural Gas Equipment by National Energy Equipment, Inc.

CANADAS LEADER IN ENERGY PRODUCTS EQUIPMENT  Relief Valves for Liquid Service NEE # Body Size Relief Valve Range Relief Valve Setting 98H-13 1/2 25-75 PSIG 50 PSIG 98H-14 1/2 70-140 PSIG 100 PSIG 98H-22 3/4 70-140 PSIG 100 PSIG 98H-29 1 25-75 PSIG 50 PSIG 98H-30 1 70-140 PSIG 100 PSIG Type 98H is a self-operated relief valve for use on relief and back pressure applications for liquid propane applications involving large LP-Gas pumping systems and vaporizers. Internal pressure registration eliminates the need for a control line. 98H Series Type 1805 relief valve is designed for installation between the first and second stage regulators or in the downstream line from a high pressure regulator used for a final stage service. Available in 1 or 2 valve bodies. Type 298H relief valve is designed for installation downstream of a large second stage regulator like the S202G or S302G. The larger diaphragm in this relief valve provides extremely sensitive operation. Diaphragm Relief Valves NEE # Body Size Relief Valve Range Relief Valve Setting 1805-19P 1 F NPT 10-60 PSIG 30 PSIG 1805-51 2 F NPT 5-35 PSIG 20 PSIG 1805-52 10-50 PSIG 30 PSIG 289H-41 1 F NPT 1-4.5 PSIG 3 PSIG 289H-42 4-15 PSIG 10 PSIG 289H-43 10-20 PSIG 15 PSIG 289H-49 20-50 PSIG 30 PSIG 298H-2 2 F NPT 1/2 2-1/2 PSIG 1- 1/2 PSIG 289H-4 4-10 PSIG 6 PSIG 1805 Series 298H-2 RELIEF, DIAPHRAGM RELIEF, BACK PRESSURE BYPASS VALVES These valves are soft seated, holding a differential back pressure on liquid meters. Type N120 is installed after the meter, and it holds a back pressure on the meter until vapor is forced back to the tank through the vapor eliminator. In this way vapor cannot form within the meter during liquid delivery. Intended for smaller pumps, N120s are ideal on such applications as cylinder filling installations. All units have a 1/4 F NEE Liquid Meter Size Body Size Differential Setting Differential Range N120-06-3 3/4 or 1 3/4 F NPT 12 PSID 10-20 PSID N120-08-3 1 F NPT N120 Fisher N110 Series Bypass Valves are ideal for pumps with flows in the 5-40 GPM range. A vented opening assists pump priming and the compact size allows for installation where space is limited. Equipped with a 1/4 side tap for a pressure gauge or relief valve, these valves are suitable for LP or NH3 applications. Fisher N100 Series Bypass Valves are designed for larger flow requirements and are similar in features to the N110 series with the exception of a 90 body configuration. Bypass Valves NEE # Pump Capacity Pump Size Body Size Differential Setting Differential Range N110-06-1 5-20 GPM 3/4 F NPT 50 PSID 25-50 PSID N110-08-1 20-40 GPM 1 F NPT N110-06-2 5-20 GPM 3/4 F NPT 100 PSID 75-100 PSID N110-08-2 20-40 GPM 1 F NPT N100A-08-1 2 1 F NPT 50 PSID 25-75 PSID N100A-08-2 115 PSID 50-150 PSID N100A-10-1 2 -3 1-1/4 F NPT 50 PSID 25-75 PSID N100A-10-2 115 PSID 50-150 PSID N100A-12-1 1-1/2 F NPT 50 PSID 25-75 PSID N100A-12-2 115 PSID 50-150 PSID N100A-16-1 4 2 F NPT 50 PSID 25-75 PSID N100A-16-2 115 PSID 50-150 PSID N100A-20-2 2-1/2 F NPT 50 PSID 25-75 PSID N110 N100 Back Pressure Valves NPT tapped and plugged boss on the inlet side of body and can be used for both LP-Gas and NH3 service. The N120 has a 1/4 F NPT connection in the closing cap for attachment of an external sensing line from the tank vapor space or vapor eliminator.

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