3251 – Heavy Duty Globe Control Valve

The Type 3251 threaded seat globe control valve is designed for general service applications up to the limits of the ANSI 2500 pressure class rating. These general service applications including process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3251 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, ceramic trim, noise attenuation and cavitation prevention trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service, cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3251 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 20″

ANSI Class: 150 to 2500

Std. Materials: Carbon Steel, Stainless Steel, Monel, Hastelloy, (Special Materials on Request)

Temperature Range: -325 to 1022oF (-196 to 550oC)

SAMSON_type_3251 manual


3252 – High Pressure Control Valve

The Type 3252 low flow threaded seat globe or angle control valve is designed for general low flow service applications up to the limits of the ANSI 2500 pressure class rating. These general low flow service applications including process events such as erosion, abrasion, cavitation, and flashing found in most process control industries.

The Type 3252 control valve has standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, etc. The Type 3252 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction.

These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 1″

ANSI Class: 150 to 2500

Std. Materials: Forged Stainless Steel

Temperature Range: -325 to 842oF (-196 to 450oC)

SAMSON_type_3252 manual


3253 – Heavy Duty 3-Way Control Valve

The Type 3253 threaded seat three-way control valve is designed for general service applications up to the limits of the ANSI 2500 pressure class rating. These general service applications including both the mixing and diverting of process fluids found in most process control industries.

The Type 3253 control valve has several standard options such as temperature extensions, metal bellows seals, and heating jacket. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service and cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.). The 3253 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 20″

ANSI Class: 150 to 2500

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -325 to 1022oF (-196 to 550oC)

SAMSON_type_3253 manual


3254 – Double-Guided Globe Control Valve

The Type 3254 threaded seat globe control valve is designed for larger sized general service applications up to the limits of the ANSI 2500 pressure class rating. These general service applications including process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3254 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, noise attenuation and cavitation prevention trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service and cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3254 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 3″ to 20″

ANSI Class: 150 to 2500

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -325 to 1022oF (-196 to 550oC)

SAMSON_type_3254 manual


3256 – Heavy Duty Angle Control Valve

The Type 3256 threaded seat angle control valve is designed for larger sized general service applications up to the limits of the ANSI 2500 pressure class rating. These general service applications including process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3256 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, ceramic trim, anti-wear sleeve, noise attenuation and cavitation prevention trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service and cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3256 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 20″

ANSI Class: 150 to 2500

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -325 to 1022oF (-196 to 550oC)

SAMSON_type_3256 manual


3291 – Heavy Duty Globe Control Valve

The Type 3291 seat retained globe control valve is designed for general service applications up to the limits of the ANSI 900 pressure class rating. These general service applications include process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3291 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, noise attenuation and cavitation prevention trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service, cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3291 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 8″

ANSI Class: 150 to 900

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -325 to 842oF (-196 to 450oC)

SAMSON_type_3291 manual


3296 – Heavy Duty Angle Control Valve

The Type 3296 seat retained globe control valve is designed for general service applications up to the limits of the ANSI 900 pressure class rating. These general service applications include process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3296 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, soft sealing trim, noise attenuation and cavitation prevention trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service, cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3296 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/2″ to 8″

ANSI Class: 150 to 900

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -325 to 842oF (-196 to 450oC)

SAMSON_type_3296 manual


3381 – Downstream Silencer

The Type 3381 Downstream Silencer provides noise attenuation by acting as a fixed restriction. The silencer system introduces a backpressure downstream of the valve that raises the pressure of the medium flow at the valve outlet, thus allowing the 3381 silencer to provide the final process pressure reduction to the system.

As a result of this additional pressure reduction stage, the sound pressure level is reduced. In applications using compressible media, it additionally lowers the flow velocity at the valve outlet.

Size: 1/2″ to 32″

ANSI Class: 150 to 2500

Std. Materials: Forged Steel, Forged Stainless Steel, (Special Materials on Request)

Temperature Range: -58 to 750oF (-50 to 400oC)

SAMSON_type_3381 manual


3510 – Microflow Valve

The Type 3510 threaded seat globe control valve is designed for micro flow applications up to the limits of the ANSI 2500 pressure class rating. These general service applications include process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries.

The Type 3510 control valve has several standard options such as temperature extensions, metal bellows seals, heating jacket, high performance metal sealing trim, etc. In addition to these options the valves can be specialized to meet the exact process needs such as NACE version for sour gas service, cleaned for specific service (e.g. Oxygen, Chlorine, High Purity, etc.).

The Type 3510 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 1/4″ to 1″

ANSI Class: 150 to 2500

Std. Materials: Forged Stainless Steel

Temperature Range: -325 to 842oF (-196 to 450oC)

SAMSON_type_3510 manual


3525 – Globe Control Valve

The Type 3525 threaded seat high pressure on/off control valve is used in upstream oil and gas production.

The Type 3525 high pressure on/off control valve has a standard design requiring few options as the scheme is intended for a specialized application. The valve is assembled with a pneumatic or electric actuator as well as an optional hand wheel that can be added to the control valve construction.

These control valves are designed according to the modular assembly principle, can be equipped with various accessories associated with on/off control such as limit switches and solenoid valves.

Size: 1″ to 3″

ANSI Class: 600 to 1500 (and 1700)

Std. Materials: Cast Steel A352 LCC

Temperature Range: -50 to 400oF (-46 to 204oC)

SAMSON_type_3525 manual


3591 – Heavy Duty Cage Control Valve

The Type 3591 cage retained globe control valve is designed for the most severe service applications up to the limits of the ANSI 900 pressure class rating. These severe service conditions include process events such as extreme erosion, abrasion, corrosion, cavitation, and flashing found in the most severe of applications in all the process control industries.

The Type 3591 control valve has standard options such as temperature extensions, high performance metal sealing trim, noise attenuation trim sets, etc. In addition to these options the valves can be specialized to meet the exact process needs for these most severe of service conditions.

The Type 3591 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

Size: 16″ to 32″

ANSI Class: 150 to 900

Std. Materials: Carbon Steel, Stainless Steel

Temperature Range: -50 to 932oF (-46 to 500oC)

SAMSON_type_3591 manual