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3256 - pneumatic - ANSI

3256 - pneumatic - ANSI

Globe valve

VALVE STYLE
Globe valve

USAGE

  • Throttling service
  • High-pressure service

VERSION
ANSI

MEDIUM TEMPERATURE
-196 to 550 °C / -320.8 to 1022 °F

SUPPLY
Pneumatic

VALVE SIZE
NPS ½ to NPS 12

PRESSURE RATING
Class 150 to Class 2500

LINING
without

Special features

  • Consisting of angle valve and actuator
  • Low-noise valve plug
  • Pressure balancing to handle large pressure drops
  • Optionally including RFID transponder with unique marking according to DIN SPEC 91406

Accessories

  • Type 2 N Strainer
  • Type 2 NI Strainer

Options

  • Ceramic or carbide metal trims
  • Special version for flashing service
  • Welding or welding-neck ends
  • Flow divider or AC-trim for noise reduction
  • Insulating section or bellows seal
  • Heating jacket
  • Perforated plug

3256 - pneumatic - ANSI can be combinated with the following actuations:

Special features:

  • Single-acting linear actuator with rolling diaphragm and internal springs
  • Diaphragm areas from 120 to 2x2800 cm²
  • Low overall height
  • Powerful thrust at high stroking speed
  • Low friction
  • Various bench ranges by varying the number of springs or their compression
  • No special tools required to change the bench range or reverse the direction of action (also version with handwheel)
» FURTHER INFORMATION

Special features:

  • Single-acting linear actuator with rolling diaphragm and internal springs
  • Diaphragm areas from 120 to 750 cm²
  • Direct attachment of accessories on additional yoke with concealed travel pick-off
  • Low overall height
  • Powerful thrust at high stroking speed
  • Low friction
  • Various bench ranges by varying the number of springs or their compression
  • No special tools required to change the bench range or reverse the direction of action (also version with handwheel)
» FURTHER INFORMATION

Special features:

  • Spindle actuator with non-rising handwheel
  • Handwheel diameter 180 or 250 mm
  • Low overall height
  • Simple connection to the valve
  • Locking mechanism to secure the valve stem position against accidental adjustment
» FURTHER INFORMATION

Information

  • WA 263

    Brochure: AC Valve Trims
    Anti-cavitation system
    [EN][DE]

  • AB 0100

    Servicing SAMSON Products
    Tightening Torques · Lubricants · Tools
    Electric and Pneumatic Control Valves
    Type 3241, Type 3244, Type 3246, Type 3248, Type 3249, Type 3510, Type 3321, Type 3321CT, Type 3323, Type 3271, Type 3277, Type 3371, Type 3372, Type 3571, Type 3251, Type 3253, Type 3254, Type 3256, Type 3259, Type 3281, Type 3286, Type 3291, Type 3296, Type 3349, Type 3275, Type 3275A and Type 3310 (edition 2020)
    [EN][DE]

  • T 8087

    Control Valves with Zero Travel 1 Trim
    for Type 3251 and Type 3256
    DIN and ANSI versions
    [EN][DE]

  • T 8084

    Type 3381 Silencer
    for Type 3251, Type 3254, Type 3256 and Type 3241
    DIN and ANSI versions
    [EN][DE][FR]

  • T 8083

    Series 250 · Pneumatic Control Valves with AC‑3 or AC‑5 Trim
    [EN][DE][RU]

  • T 8082

    Pneumatic Control Valves with AC‑1 Trim
    [EN][DE]

  • T 8081

    Flow Dividers for Control Valves
    St 1 · St 2 · St 3
    [EN][DE][FR]

  • T 8086

    Series 240 and 250 · Valves with perforated plug
    DIN and ANSI versions
    [EN][DE]

  • T 8071

    Control Valves with Ceramic Trims
    [EN][DE][RU][IT]

  • T 8066

    Type 3256-1 and Type 3256-7 Pneumatic Control Valves
    Type 3256 Angle Valve
    ANSI version
    [EN][DE]

  • T 8000-6

    Information sheet
    Packings for Globe Valves
    Packing forms and their application ranges
    [EN][DE]

  • T 8000-1

    Information Sheet:
    Electric and Pneumatic Control Valves
    Series 240 · 250 · 290 · Series V2001 · PFEIFFER
    [EN][DE]

  • T 8000-2

    Information Sheet:
    Electric and Pneumatic Control Valves
    Series 240 • 250 • 290 • SAMSON PFEIFFER
    Materials and pressure-temperature diagrams
    [EN][DE]

  • T 8000-3

    Information Sheet:
    Electric and Pneumatic Control Valves
    Series 240 • 250
    Flow coefficients for valves
    Type 3241 • Type 3248 • Type 3249 • Type 3251 • Type 3321 • Type 3347 • Type 3598
    [EN][DE]

  • T 8000-4

    Series 240 · 250 · 280
    Pneumatic Control Valves
    Information Sheet Part 4
    Permissible differential pressures for valves
    Type 3241 · Type 3251 · Type 3254 · Type 3256 Type 3281 · Type 3284 · Type 3286
    [EN][DE]

Support

  • EB 8066

    Type 3256 Valve · ANSI version
    In combination with an actuator, e.g. a Type 3271 or Type 3277 Pneumatic Actuator
    [EN][DE]

  • H 02

    Appropriate Machinery Components for SAMSON Pneumatic Control Valves with a Declaration of Conformity of Final Machinery
    [EN][DE]

  • H 01

    Oxygen
    Instructions and information on how to safely handle devices for oxygen service
    [EN][DE][FR][ES]

DXF file from data sheet

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