Detailed Diagrams of in-stock spare part model numbers
Valves: 81, 83, 83F
Features: Types 81 and 83 are direct spring operated valves designed with special patented internals and soft seats to provide superior performance. This range is capable of solving the most difficult pressure relief problems with valves suitable for gas vapor, and steam service. Type 81 and 83 valves carry the ASME Section VIII Code Stamp.
| Orifice Sizes | 0.49 in2 (0.32 cm2) and D through J |
| Connections | 1/2″ x 3/4″ to 2″ x 3″ |
| Inlet Flange Ratings | ANSI 150, 300, 600, 900, 1500, 2500 |
| Maximum Temperature | 515° (269°) |
| Minimum Pressure | 20 psig (1.4 barg) |
| Maximum Pressure | 10,000 psig (690 barg) |
Features: The Type 81P is a fully back pressure balanced, direct spring operated valve designed specially for liquid service. The valve is fully open at only 10% overpressure and has a pressure-loaded spindle ring to ensure stability with no chatter.
| Orifice Sizes | 0.049 in2 (0.32 cm2) and D through J |
| Connections | 3/4″ x 1″ to 2″ x 3″ |
| Inlet Flange Ratings | ANSI 150, 300, 600, 900, 1500, 2500 |
| Maximum Temperature | 400°F (204°C) |
| Minimum Pressure | 50 psig ( |
| Temperature (max) | 1,000° F (538° C) |
Features: The Series 200 is a no-flow, pop action POPRV design principally intended for gas applications. Suitable for severe service where dirt, hydrates and high moisture levels occur in the fluid media, the Series 200 is the industry standard for pop action POPRVs.
| Orifice Sizes | D through T, Full Bore valves also available |
| Connections | 1: x 2″ to 8″ x 10″ (8″ x 10″ x 10″ for full bore) |
| Inlet Flange Ratings | ANSI 105, 300, 600, 900, 1500, 2500 |
| Temperature Range | -423°F to +500°F (-253° to +260°C) |
| Minimum Pressure | 25 psig (1.72 barg) |
| Maximum Pressure | 10,000 psig (690 brag) |
Features: The Series 400 is a no-flow, modulating action POPRV design suitable for gas, liquid and two-phase applications. The Series 400 represents the very best state-of-the-art technology providing safety relief valve performance not possible from direct spring PRV’s.
| Orifice Sizes | D through T, Full Bore valves also available |
| Connections | 1″ x 2″ to 8″ x 10″ (8″ x 10″ x 10″ for full bore) |
| Inlet Flange Ratings | ANSI 150, 300, 600, 900, 1500, 2500 |
| Temperature Range | -423°F to +500°F (-253°C to +260°C) |
| Minimum Pressure | 15 psig (1/03 barg) |
| Maximum Pressure | 6,000 psig (414 barg) |
Features: The Type727 safety valve has been specifically designed to provide a valve with premium seat tightness on high temperature gas and steam service. The 727 has all metal seating surfaces and is ASME Section VIII Code Stamped.
| Connections | 1/2″, 1″, 2″ threaded (NPT) and flanged ANSI 150, 300, 600 |
| Temperature Range | -20°F to +300°F (-29°C to +149¯C) |
| Maximum Inlet Pressure | 200 psig (14 barg) |
| Blanket Pressure Range | 0.5″ wc to 6 psig (12.7 mm wc to 0.4 barg) |
Features: Designed for cryogenic and non-cryogenic storage tanks the Anderson, Greenwood Series 90/9000 POPRVs provide extremely accurate valve setting and ultra sensitive response with set pressure as low as 4″wc (10 mbarg). The Series 9000 is also available as a pilot operated vacuum breaker for highly sensitive and air-tight vacuum service.
| Connections | 2″ x 3″ to 12″ x 16″ |
| Inlet Flange Ratings | ANSI 125, 150 |
| Temperature Range | -320°F to +200°F (-296°C to +93°C) |
| Minimum Pressure | 4″ wc (10 mbarg) |
Features: The Anderson, Greenwood Safety Selector Valve (SSV) is a unique device, developed to provide a safe and efficient method of switching from an active PRV to a standby PRV. The SSV has less than 3% pressure drop to the active PRV inlet, in accordance with ASME Section VIII Code and API RP520 Part II. The SSV is provided with a ‘foolproof’ locking mechanism. Tandem Safety Selector Valve systems are available which allow positive and simultaneous switching of both inlet and outlet SSV’s while maintaining overpressure protection at all times.
| Connections | 1″ to 8″ |
| Flange Ratings | ANSI 150, 300, 600, 900, 1500, 2500 |
| Temperature Range | -423°F to +800°F (-253°C to +427°C) |
| Minimum Inlet Pressure | 6,000 psig (414 barg) |
Features: Tank Blanketing provides an inert gas blanket over the liquid in a liquid storage tank. The Anderson, Greenwood Trans-Zero Regulator is a pilot operated, dome-loaded diaphragm type regulator capable of reducing blanketing gas from 14 barg to 12.5 mm wc in a single step providing bubble-tight shut off and low maintenance costs.
| Connections | 1/2″, 1″, 2″ threaded (NPT) and flanged ANSI 150, 300, 600 |
| Temperature Range | -20°F to +300°F (-29°C to +149¯C) |
| Maximum Inlet Pressure | 200 psig (14 barg) |
| Blanket Pressure Range | 0.5″ wc to 6 psig (12.7 mm wc to 0.4 barg) |
Features: Tank Blanketing provides an inert gas blanket over the liquid in a liquid storage tank. The Anderson, Greenwood Trans-Zero Regulator is a pilot operated, dome-loaded diaphragm type regulator capable of reducing blanketing gas from 14 barg to 12.5 mm wc in a single step providing bubble-tight shut off and low maintenance costs.
| Sizes | 12″, 18″, 20″, 24″ |
| Temperature Range | -20°F to +250°F (-29°C to +121¯C) |
| Pressure Range | 4: wc to 1 psig (10 mbarg to 69 mbarg) |
| Vacuum Setting | 1 oz, 2 oz, 3 oz, 4 oz (4.3 mbarg, 8.6 mbarg, 12.9 mbarg, 17.2 mbarg) |