Page 54 of Propane and Natural Gas Equipment by National Energy Equipment, Inc.

CANADAS LEADER IN ENERGY PRODUCTS EQUIPMENT  ROTARY GAUGES INTERNAL VALVES Fisher rotary gauges can be used on stationary or mobile tanks to visually indicate the amount of LP-Gas or NH3 in the container. They are also used in filling the tank to the proper liquid level. On mobile applications and some large stationary storage tanks, hangers are recommended to support the horizontal length of the dip tube. Type J31 consists of heavy duty gauges that minimize vibration effects (swaying, bouncing) by a long (68 , 1.73 meters) stem tube extension. Gauges fit 1 coupling container connections. All gauges have stem and dip tubes with an extra large inside diameter. This assures that the correct liquid level can be obtained quickly. A nylon packing sleeve and a friction ring for the pointer indicator gives smooth rotation and long service life. Steel and stainless steel materials resist rust or corrosion. NEE # Description Note J31L-2 Gauge for 69-92 tanks With P323 Dial J31X3L Gauge for 93-108 tanks No Dial J31L-3L Gauge for 108 140 tanks With P323 Dial P322 Replacement Dial LPG Less than 1200 USWG P323 Replacement Dial LPG More than 1200 USWG P324 Replacement Dial NH3 More than 1200 USWG Rotary Gauges Internal valves, both threaded and flanged versions, are used as primary shutoff valves, excess flow valves and back check valves. The most frequent application is on mobile and transport truck tanks, they are also gaining popularity in stationary storage vessel use because of their inherent safety features. C421 C402 C427 Threaded Internal Valves C407 Tank Connection Outlet Connection UL Rated Closing Flow GPM Propane Vapor Capacity SCFH 100 PSIG Inlet Tank Coupling NEE * Straight Through Body (1 Outlet) Tee Body (2 outlets) Strainer Body (3 outlets) 1 1/4 M NPT 1 1/4 F NPT 30, 50 or 80 13,200 with 50 GPM spring Half C407-10 - - 2 M NPT 2 F NPT 100, 150 or 250 53,600 with 150 GPM spring Half C427-16 C421-16 C402-16 3 M NPT # F NPT 150, 200, 250, 400 or 500 75,400 with 200 GPM spring Half C427-24 C421-24 C402-24 * All units have manual operating lever. The valve can be operated by cable or air cylinder.

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