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Series 280 Steam-converting Valves
  • Series 280 Steam-converting Valves

Series 280 Steam-converting Valves are used to reduce both the steam pressure and steam temperature to optimize plant operation and heat efficiency in process plants, for example, in refineries, food and beverage, tobacco or pulp and paper industries. Steam-converting valves are based on Series 250 Valves fitted with a flow divider St III and an additional cooling water connection.

Details

SAMSON control valves Series 280 Steam-converting Valves

Series 280 Steam-converting Valves are used to reduce both the steam pressure and steam temperature to optimize plant operation and heat efficiency in process plants, for example, in refineries, food and beverage, tobacco or pulp and paper industries. 

Steam-converting valves are based on Series 250 Valves fitted with a flow divider St III and an additional cooling water connection. 

Steam-converting valves are available in valve sizes ranging from DN 50 to 500 (NPS 2 to 20), for pressure ratings of PN 16 to 160 (Class 150 to 900) and for temperatures up to 500 °C (930 °F).


Series 280 Type 3281-1 and Type 3281-7 Pneumatic Steam Converters 

Type 3281 Steam-converting Valve DIN and ANSI versions

Application 

Final control element (globe valve) for process engineering applications and thermal plants 

Nominal size DN 50 to 500, NPS 2 to 20 

Nominal pressure PN 16 to 160, Class 150 to 900 

Temperatures Up to 500 °C, 932 °F

Steam converters reduce the pressure and the temperature to the set points adjusted at the pressure controller and the temperature controller. They consist of a Type 3281 Steam-converting Valve together with a Type 3271 Pneumatic Actuator (Type 3281-1 Steam Converter) or with a Type 3277 Pneumatic Actuator (Type 3281-7 Steam Converter). 

The steam-converting valve largely corresponds to a Type 3251 Globe Valve fitted with a flow divider St III.

Standard version with PTFE packing for temperatures up to 428 °F (220 °C) or with adjustable high-temperature packing up to 662 °F (350 °C), valve size NPS 2 to 20, pressure rating Class 150 to 900.

– Type 3281-1, Type 3281 Steam-converting Valve and Type 3271 Actuator with 350 to 2800 cm² actuator area.

– Type 3281-7, Type 3281 Steam-converting Valve and Type 3277 Actuator with 350 to 750 cm² actuator area.


Series 280 Type 3286-1 and Type 3286-7 Pneumatic Steam Converters 

Type 3286 Steam-converting Valve DIN and ANSI versions

Application 

Final control element (angle valve) for process engineering applications and thermal plants 

Nominal size DN 50 to 300, NPS 2 to 12

Nominal pressure PN 16 to 160, Class 150 to 900 

Temperatures Up to 500 °C (932 °F)

Steam converters reduce the pressure and the temperature to the set points adjusted at the pressure controller and the temperature controller. They consist of a Type 3286 Steam-converting Valve together with a Type 3271 Pneumatic Actuator (Type 3286-1 Steam Converter) or with a Type 3277 Pneumatic Actuator (Type 3286-7 Steam Converter). 

The steam-converting valve largely corresponds to a Type 3256 Angle Valve fitted with a flow divider St III.

Standard version with PTFE packing for temperatures up to 428 °F (220 °C) or with adjustable high-temperature packing up to 662 °F (350 °C), valve size NPS 2 to 12, pressure rating Class 150 to 900 

- Type 3286-1. Type 3286 Steam-converting Valve and Type 3271 Actuator with 350 to 2800 cm² actuator area.

- Type 3286-7. Type 3286 Steam-converting Valve and Type 3277 Actuator with 350 to 750 cm² actuator area.


Datasheets:

Type 3281-1 and Type 3281-7 Pneumatic Steam Converters DIN version

Type 3281-1 and Type 3281-7 Pneumatic Steam Converters ANSI version

Type 3286-1 and Type 3286-7 Pneumatic Steam Converters DIN version

Type 3286-1 and Type 3286-7 Pneumatic Steam Converters ANSI version


TAG:   SAMSON control valves
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