3251 - pneumatic - ANSI
Globe valve
VALVE STYLE
Globe valve
USAGE
- On/off service
- High-pressure service
- Throttling service
- Low-pressure service
VERSION
ANSI
MEDIUM TEMPERATURE
-196
to 550 °C /
-320.8
to
1022 °F
SUPPLY
Pneumatic
VALVE SIZE
NPS ½
to
NPS 20
PRESSURE RATING
Class 150
to
Class 2500
LINING
without
Special features
- Consisting of globe valve and actuator
- Also available as additively manufactured Type 3251-AM Valve
- 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
- Welding or welding-neck ends
- Flow divider or AC-trim for noise reduction
- Insulating section or bellows seal
- Heating jacket
- Perforated plug
- Silencers
3251 - 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)
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)
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
Information
AB 0100
Servicing SAMSON Products
Tightening Torques · Lubricants · ToolsElectric and Pneumatic Control Valves[EN][DE]
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)
T 8084
Type 3381 Silencer
for Type 3251, Type 3254, Type 3256 and Type 3241DIN and ANSI versions[EN][DE][FR]T 8083
Series 250 · Pneumatic Control Valves with AC‑3 or AC‑5 Trim
[EN][DE][RU]T 8087
Control Valves with Zero Travel 1 Trim
for Type 3251 and Type 3256DIN and ANSI versions[EN][DE]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 8071
Control Valves with Ceramic Trims
[EN][DE][RU][IT]T 8052
Type 3251-1/3251-AM-1 and Type 3251-7/3251-AM-7 Pneumatic Control Valves
Type 3251 and Type 3251-AM Globe ValveANSI version[EN][DE]T 8000-6
Information sheet
Packings for Globe ValvesPacking forms and their application ranges[EN][DE]T 8086
Series 240 and 250 · Valves with perforated plugDIN and ANSI versions[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 PFEIFFERMaterials and pressure-temperature diagrams[EN][DE]T 8000-3
Information Sheet:
Electric and Pneumatic Control ValvesSeries 240 • 250[EN][DE]
Flow coefficients for valves
Type 3241 • Type 3248 • Type 3249 • Type 3251 • Type 3321 • Type 3347 • Type 3598T 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]
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