Series 900 OMNI-TRIM®
Single trim design, fixed blowdown design for medium flow of air, gas, steam, vapor, liquid and two phase applications. Full nozzle design. Available with metal or O-ring seat construction.

Series BP OMNI-TRIM®
Crosby Series BP OMNI-TRIM® Pressure Relief Valve is a piston, single trim designed valve for gas, vapor and liquid applications involving variable back pressure. Full nozzle design with O-ring seat as standard.

Anderson Greenwood’s Series 200 pop action, safety valve, with non-flowing pilot, provides system overpressure protection you can count on. Since its 1966 introduction, it has been continuously refined and remains the standard against which all other pilot operated valves are compared. This valve is well suited for gas, vapor, and many mixed phase services, including dirty and/or wet applications. The Series 200 is available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²], valve inlet sizes 1" to 10" [25 to 254 mm], set pressures from 25 to over 6000 psig [1.72 to over 413.7 barg], and continuous service temperatures -423°F to +600°F [-253°C to +315°C].

Anderson Greenwood’s Series 200 pop action, safety valve, with non-flowing pilot, provides system overpressure protection you can count on. Since its 1966 introduction, it has been continuously refined and remains the standard against which all other pilot operated valves are compared. This valve is well suited for gas, vapor, and many mixed phase services, including dirty and/or wet applications. The Series 200 is available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²], valve inlet sizes 1" to 10" [25 to 254 mm], set pressures from 25 to over 6000 psig [1.72 to over 413.7 barg], and continuous service temperatures -423°F to +600°F [-253°C to +315°C].

The Series 400 modulating valve, with nonflowing pilot, incorporates an advanced design in pilot operated valves. Under process conditions, both pilot and main valve can be tight to as high as 98 percent of set pressure. The main valve lifts proportionally according to required flow (relief demand), restricting product loss to only the mass required to be relieved to prevent process pressure from exceeding the code allowance.

Well suited for gas and/or liquid services, including dirty and/or wet services. The modulating action is strongly preferred for liquid relief because it minimzes the destructive effects of "liquid hammer".

Available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²] valve inlet sizes 1" to 10" [25 to 254 mm], set pressure between 15 and 1480 psig [1.03 and 102.0 barg], and continuous service temperatures from -65°F to +600°F [-54°C to +315°C].

The Series 400 modulating valve, with nonflowing pilot, incorporates an advanced design in pilot operated valves. Under process conditions, both pilot and main valve can be tight to as high as 98 percent of set pressure. The main valve lifts proportionally according to required flow (relief demand), restricting product loss to only the mass required to be relieved to prevent process pressure from exceeding the code allowance.

Well suited for gas and/or liquid services, including dirty and/or wet services. The modulating action is strongly preferred for liquid relief because it minimzes the destructive effects of "liquid hammer".

Available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²] valve inlet sizes 1" to 10" [25 to 254 mm], set pressure between 15 and 1480 psig [1.03 and 102.0 barg], and continuous service temperatures from -65°F to +600°F [-54°C to +315°C].

The Anderson Greenwood Series 500 is a unique soft seated safety relief valve designed to handle higher temperatures. It was created with a specific design objective: to decrease the leakage associated with metal-seated safety relief valves under extreme operating temperature conditions.

The result is a modulating, soft-seated, pilot operated valve offering premium tightness with the ability to handle temperatures from -65°F to 515°F [-54°C to 268°C] and a set pressure range of 15 to 720 psig [1.03 to 49.6 barg].

The soft seat in the Series 500 main valve is more resistant to particulate damage than a metal seat, has a longer service life, and can be quickly replaced while the valve body remains installed in the line.

Its unique design enables the main valve to be tight at pressures up to set point. After relieving and reseating, it stays bubble-tight, cycle after cycle. Applications for the Series 500 include hot water, steam (ASME Section VIII Unfired Pressure Vessels), hot hydrocarbon vapors or liquids, and corrosive services.

The Series 800 modulating valve utilizes the most advanced design in pilot operated valves. The non-flowing, modulating pilot can be set at pressures up to 6170 psig [425.52 barg]. Under these process conditions, the pilot and main valve can be tight up to 98 percent of set pressure.

Since the pilot is modulating, the main valve lifts proportionally according to required flow (relief demand), restricting product loss to the mass required to prevent the process pressure from exceeding the code allowance. The pilot provides stable lift even on hard liquid systems due to its unique trim. The 800 Series can also be used in liquids, gases, or mixed phase lading fluids, including dirty and/or wet services.

The Series 800 valve is available with the following: effective orifice areas of 0.110 to 9.489 in² [0.710 to 61.21 cm²], valve inlet sizes 1" to 4" [25 to 100 mm], set pressures between 1481 and 6170 psig [102.13 and 425.52 barg], and continuous temperatures from -65°F to +600°F [-54°C to +315°C].

The Series 800 modulating valve utilizes the most advanced design in pilot operated valves. The non-flowing, modulating pilot can be set at pressures up to 6170 psig [425.52 barg]. Under these process conditions, the pilot and main valve can be tight up to 98 percent of set pressure.

Since the pilot is modulating, the main valve lifts proportionally according to required flow (relief demand), restricting product loss to the mass required to prevent the process pressure from exceeding the code allowance. The pilot provides stable lift even on hard liquid systems due to its unique trim. The 800 Series can also be used in liquids, gases, or mixed phase lading fluids, including dirty and/or wet services.

The Series 800 valve is available with the following: effective orifice areas of 0.110 to 9.489 in² [0.710 to 61.21 cm²], valve inlet sizes 1" to 4" [25 to 100 mm], set pressures between 1481 and 6170 psig [102.13 and 425.52 barg], and continuous temperatures from -65°F to +600°F [-54°C to +315°C].

Conventional and Balanced Bellows Spring loaded pressure relief valves built in accordance with API Standards 526 and 527 for air, gas, steam and vapor. Styles JLT-JOS-E and JLT-JBS-E for liquid service and two phase applications.

Crosby Style HCA is a high temperature version of the Style HC, with an alloy steel construction suitable to temperatures up to 1020°F. Typically Style HCA valves are used for superheaters and reheater outlets.

High capacity safety valve for saturated and superheated steam service. Two ring control and optional restricted lift feature. ISOFLEX® seat design provides seat tightness up to 95% of set pressure.

Full nozzle safety valve for saturated and superheated steam service. Two ring control. Style HSJ-DOW with closed bonnet and screwed cap for Dowtherm service.

A full nozzle reaction type safety valve designed for saturated and superheated steam service. Two choices of inlet flange ratings and a simplicity of design to facilitate ease of maintenance.

High capacity safety valve for drum service, saturated steam applications. Two ring control and back pressure-assist close design are standard. ISOFLEX® seat design provides seat tightness up to 95% of set pressure.

Type 63B are direct spring operated safety valves suitable for medium set pressure gas, vapor and liquid or gas thermal relief applications. Their brass construction offers an economical valve for carbon dioxide, natural gas and general gas or vapor services.

The Type 81 direct spring operated safety valve, with an inert plastic seat, is suitable for a wide range of products, pressures and temperatures involving gas, vapor and liquid or gas thermal relief applications. It allows maintained tightness close to set pressure, opens fully at set pressure and provides a safe, external adjustment for short blowdown. The Type 81 valve is best suited for cryogenic, high set pressure and chemically active applications.

The Type 81P is a soft-seated, balanced valve with an internal nozzle, guide and spindle assembly which are made especially for the unique demands of liquid service.

The Type 83 direct spring operated safety valve, with an elastomer seat, is ideal for gas processes that operate close to set pressure, for controlling valuable or polluting gas products that should not be lost to the atmosphere and for liquid or gas thermal relief applications. It allows maintained tightness close to set pressure, opens fully at set pressure and provides a safe, external adjustment for short blowdown. The Type 83 is best suited for hard-to-hold gases and vapors and general gas or vapor service.

Anderson Greenwood’s Series 200 pop action, safety valve, with non-flowing pilot, provides system overpressure protection you can count on. Since its 1966 introduction, it has been continuously refined and remains the standard against which all other pilot operated valves are compared. This valve is well suited for gas, vapor, and many mixed phase services, including dirty and/or wet applications. The Series 200 is available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²], valve inlet sizes 1" to 10" [25 to 254 mm], set pressures from 25 to over 6000 psig [1.72 to over 413.7 barg], and continuous service temperatures -423°F to +600°F [-253°C to +315°C].

The Series 400 modulating valve, with nonflowing pilot, incorporates an advanced design in pilot operated valves. Under process conditions, both pilot and main valve can be tight to as high as 98 percent of set pressure. The main valve lifts proportionally according to required flow (relief demand), restricting product loss to only the mass required to be relieved to prevent process pressure from exceeding the code allowance.

Well suited for gas and/or liquid services, including dirty and/or wet services. The modulating action is strongly preferred for liquid relief because it minimzes the destructive effects of "liquid hammer".

Available with effective orifice areas of 0.110 to 63.50 in² [0.710 to 409.7 cm²] valve inlet sizes 1" to 10" [25 to 254 mm], set pressure between 15 and 1480 psig [1.03 and 102.0 barg], and continuous service temperatures from -65°F to +600°F [-54°C to +315°C].

The Anderson Greenwood Series 500 is a unique soft seated safety relief valve designed to handle higher temperatures. It was created with a specific design objective: to decrease the leakage associated with metal-seated safety relief valves under extreme operating temperature conditions.

The result is a modulating, soft-seated, pilot operated valve offering premium tightness with the ability to handle temperatures from -65°F to 515°F [-54°C to 268°C] and a set pressure range of 15 to 720 psig [1.03 to 49.6 barg].

The soft seat in the Series 500 main valve is more resistant to particulate damage than a metal seat, has a longer service life, and can be quickly replaced while the valve body remains installed in the line.

Its unique design enables the main valve to be tight at pressures up to set point. After relieving and reseating, it stays bubble-tight, cycle after cycle. Applications for the Series 500 include hot water, steam (ASME Section VIII Unfired Pressure Vessels), hot hydrocarbon vapors or liquids, and corrosive services.

The Series 800 modulating valve utilizes the most advanced design in pilot operated valves. The non-flowing, modulating pilot can be set at pressures up to 6170 psig [425.52 barg]. Under these process conditions, the pilot and main valve can be tight up to 98 percent of set pressure.

Since the pilot is modulating, the main valve lifts proportionally according to required flow (relief demand), restricting product loss to the mass required to prevent the process pressure from exceeding the code allowance. The pilot provides stable lift even on hard liquid systems due to its unique trim. The 800 Series can also be used in liquids, gases, or mixed phase lading fluids, including dirty and/or wet services.

The Series 800 valve is available with the following: effective orifice areas of 0.110 to 9.489 in² [0.710 to 61.21 cm²], valve inlet sizes 1" to 4" [25 to 100 mm], set pressures between 1481 and 6170 psig [102.13 and 425.52 barg], and continuous temperatures from -65°F to +600°F [-54°C to +315°C].

Series 900 OMNI-TRIM®
Single trim design, fixed blowdown design for medium flow of air, gas, steam, vapor, liquid and two phase applications. Full nozzle design. Available with metal or O-ring seat construction.

Series BP OMNI-TRIM®
Crosby Series BP OMNI-TRIM® Pressure Relief Valve is a piston, single trim designed valve for gas, vapor and liquid applications involving variable back pressure. Full nozzle design with O-ring seat as standard.

Crosby Style HCA is a high temperature version of the Style HC, with an alloy steel construction suitable to temperatures up to 1020°F. Typically Style HCA valves are used for superheaters and reheater outlets.

High capacity safety valve for saturated and superheated steam service. Two ring control and optional restricted lift feature. ISOFLEX® seat design provides seat tightness up to 95% of set pressure.

High capacity safety valve for drum service, saturated steam applications. Two ring control and back pressure-assist close design are standard. ISOFLEX® seat design provides seat tightness up to 95% of set pressure.

Full nozzle safety valve for saturated and superheated steam service. Two ring control. Style HSJ-DOW with closed bonnet and screwed cap for Dowtherm service.

A full nozzle reaction type safety valve designed for saturated and superheated steam service. Two choices of inlet flange ratings and a simplicity of design to facilitate ease of maintenance.

Conventional and Balanced Bellows Spring loaded pressure relief valves built in accordance with API Standards 526 and 527 for air, gas, steam and vapor. Styles JLT-JOS-E and JLT-JBS-E for liquid service and two phase applications.

Type 63B are direct spring operated safety valves suitable for medium set pressure gas, vapor and liquid or gas thermal relief applications. Their brass construction offers an economical valve for carbon dioxide, natural gas and general gas or vapor services.

The Type 81 direct spring operated safety valve, with an inert plastic seat, is suitable for a wide range of products, pressures and temperatures involving gas, vapor and liquid or gas thermal relief applications. It allows maintained tightness close to set pressure, opens fully at set pressure and provides a safe, external adjustment for short blowdown. The Type 81 valve is best suited for cryogenic, high set pressure and chemically active applications.

The Type 81P is a soft-seated, balanced valve with an internal nozzle, guide and spindle assembly which are made especially for the unique demands of liquid service.

The Type 83 direct spring operated safety valve, with an elastomer seat, is ideal for gas processes that operate close to set pressure, for controlling valuable or polluting gas products that should not be lost to the atmosphere and for liquid or gas thermal relief applications. It allows maintained tightness close to set pressure, opens fully at set pressure and provides a safe, external adjustment for short blowdown. The Type 83 is best suited for hard-to-hold gases and vapors and general gas or vapor service.