240 Series PFEIFFER Electric and Pneumatic Control Valves

SAMSON control valves Series 240 Control Valves

Type 3241 Globe Valve

Type 3244-1 and Type 3244-7 Pneumatic Control Valves

Type 3248-1 and Type 3248-7 Pneumatic Control Valves

Type 3351 Pneumatic On/off Valve

Type 3510-1 and Type 3510-7 Pneumatic Control Valves

Series 240 Control Valves are primarily used in the chemical industry. The valves are available as globe and three-way valves in valve sizes ranging from DN 15 to 300 (NPS ½ to 12) and up to a pressure rating of PN 40 (Class 300).

Standard versions of the valves are suitable for temperature ranges between –10 and +220 °C (15 and 430 °F). An insulating section allows the temperature range to be extended to –196 and +450 °C (ANSI: –325 and +840 °F).

The plug stem is sealed either by a self-adjusting PTFE V-ring packing or an adjustable packing. To meet stricter emissions control requirements, a stainless steel bellows is used. The Type 3241 Valve can be equipped with a heating jacket that may also include the bellows seal.

. Series 240 Type 3241-1 and Type 3241-7 Pneumatic Control Valves 

  Type 3241 Globe Valve DIN and ANSI versions

Application 

Control valve for process engineering and industrial applications 

Nominal size: DN 15 to 300 (NPS ½ to 12)

Nominal pressure: PN 10 to 40 (Class 125 to 300)

Temperatures: –196 to 450 °C (–325 to +842 °F)

Type 3241 Globe Valve operated with 

• Type 3271 Pneumatic Actuator (Type 3241-1 Control Valve) or 

• Type 3277 Pneumatic Actuator (Type 3241-7 Control Valve

Standard version for temperatures ranging from –10 to 220 °C 

– Type 3241-1. DN 15 to 300 (NPS ½ to 12) with Type 3271 Pneumatic Actuator 

– Type 3241-7. DN 15 to 150 (NPS ½ to 6) with Type 3277 Pneumatic Actuator for integral positioner 

. Series 240 Pneumatic Control and Quick-acting Shut-off Valve for liquid fuels and liquefied petroleum gas in the liquid phase 

Type 3241-1-Oil and Type 3241-7-Oil

Application 

Control valve designed as control and safety shut-off device for combustion plants burning liquid fuels 

DN 15 and DN 25 · PN 16 and PN 40 · Up to 350 °C

Standard version for temperatures up to 220 °C, with soft-seated plug, stem sealed by spring-loaded PTFE V-ring packing, pneumatic actuator with mounted pilot valve and Type 2 NI Strainer. 

– Type 3241-1-Oil. Pneumatic control and quickacting shut-off valve with Type 3271 Actuator

– Type 3241-7-Oil. Pneumatic control and quickacting shut-off valve with Type 3277 Actuator

. Series 240 Type 3244-1 and Type 3244-7 Pneumatic Control Valves Type 3244 Three-way Valve DIN and ANSI versions

Application 

Mixing or diverting valve for process engineering and industrial applications 

Valve size: DN 15 to 150 · NPS ½ to 6 

Pressure rating: PN 10 to 40 · Class 150 and 300 

Temperatures: -196 to +450 °C · -325 to +842 °F

Type 3244 Three-way Valve with 

• Type 3271 Pneumatic Actuator

• Type 3277 Pneumatic Actuator for integral positioner attachment

Standard version designed for temperatures from –10 to +220 °C (15 to 430 °F) with pneumatic actuator

– Type 3244-1. Type 3244 Valve with Type 3271 Actuator  

– Type 3244-7. Type 3244 Valve and Type 3277 Pneumatic Actuator for integral positioner 

. Series 240 Type 3248-1 and Type 3248-7 Pneumatic Control Valves 

  Type 3248 Cryogenic Valve DIN version

Application

Globe or angle valve for cryogenic applications · Easy to service due to top-entry design

Nominal size DN 25 to 150

Nominal pressure PN 16 to 100

Temperature range –273 to +65 °C

The Type 3248 Cryogenic Valve is specially designed to meet the requirements of cryogenic applications.

Standard version. Temperature range from –196 to +65 °C Stem sealed by metal bellows and self-adjusting V-ring packing made of pure PTFE or PTFE/carbon

– Type 3248-1 · With Type 3271 Pneumatic Actuator, 175 to 2800 cm² effective diaphragm area

– Type 3248-7 · With Type 3277 Pneumatic Actuator for integral positioner attachment, 175 to 750 cm² effective diaphragm area

. Series 240 Type 3351 Pneumatic On/off Valve

Application

Tight-closing on/off valve for liquids, gases and vapors according to DIN or ANSI standards

Valve size: DN 15 to 100 · NPS ½ to 4

Pressure rating: PN 10 to 40 · Class 150 and 300

Medium temp.: –50 to +250 °C · –58 to +482 °F

The Type 3351 Pneumatic Control Valve consists of an on/off valve and a pneumatic actuator. Optionally, the valve can be equipped with a bellows seal or insulating section.

Standard version for pressure rating PN 10 to 40 or Class 150 and 300, fail-close or fail-open

– Type 3351 . On/off valve with self-adjusting PTFE V-ring packing · Valve size DN 15 to 100 (NPS ½ to 4) Medium temperatures from –10 to 220 °C (14 to 428 °F)

– Type 3351 with bellows seal · On/off valve with bellows seal and PTFE V-ring packing · Valve size DN 15 to 50 (NPS ½ to 2).

– Type 3351 with insulating section · On/off valve with insulating section and plug stem sealed by a PTFE V-ring packing. Valve size DN 15 to 50 (NPS ½ to 2)

. Series 240 Type 3510-1 and Type 3510-7 Pneumatic Control Valves Type 3510 Micro-flow Valve DIN version

Application

Control valve especially designed for controlling low flow rates in pilot plants and technical research facilities

Nominal size: G 1/8 · G ¼ · G 3/8 · G ½ · G ¾ 1/8 NPT · ¼ NPT · 3/8 NPT · ½ NPT · ¾ NPT DN 10 · DN 15 · DN 25

Nom. pressure: PN 40 to 400

Temperatures: –196 to +450 °C

Type 3510 Micro-flow Valve with 

- Type 3271-5 Pneumatic Actuator 

- Type 3277-5 Pneumatic Actuator

Standard version

– For temperatures from –10 to +220 °C

– PN 40 to 400

– Globe or angle valve

– Female thread G 1/8, G ¼, G 3/8, G ½, G ¾ or 1/8 NPT, ¼ NPT, 3/8 NPT, ½ NPT, ¾ NPT

– Flanges DN 10, 15 or 25

– Welding ends DN 10, 15 or 25

Type 3510‑1 · With Type 3271‑5 Pneumatic Actuator (120 cm²) · 

Type 3510‑7 · With Type 3277‑5 Pneumatic Actuator (120 cm²) for integral positioner

Datasheet:

Type 3241-1 and Type 3241-7 Pneumatic Control Valves DIN version

Type 3241-1 and Type 3241-7 Pneumatic Control Valves ANSI version

Pneumatic Control and Quick-acting Shut-off Valve Type 3241-1-Oil and Type 3241-7-Oil

Type 3244-1 and Type 3244-7 Pneumatic Control Valves

Type 3248-1 and Type 3248-7 Pneumatic Control Valves

Type 3351 Pneumatic On/off Valve

Type 3510-1 and Type 3510-7 Pneumatic Control Valves