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BR 31a - 2010

BR 31a - 2010

Pneumatic rotary actuator

USAGE

Throttling service
On/off service
Pressure swing adsorption (PSA)

ACTUATOR MOTION
Rotary

RATED ANGLE
90°

SUPPLY
Pneumatic

VERSION
Standard

FAIL-SAFE ACTION
Reversible

Special features, accessories, and options
Downloads

Special features

Single-acting and double-acting piston actuator
Suitable for strict requirements in chemical plants
Opening angle 90°
Signal pressures up to 10 bar
Torques from 5 to 11674 Nm
Temperatures from –40 to +80 °C
End positions adjustable within wide range (+5°/–15°)
Diagonal or parallel square drive position
Position indicator adjustable in steps of 45°
Encapsulated spring assemblies
Power transmission without clearance thanks to involute gearing
Direction of rotation reversible without requiring additional parts
Surface treatment tested by Kesternich sulfur dioxide corrosion test and salt spray test
Centering ring milled into the housing
Standardized attachment of valve accessories according to VDI/VDE 3845 or NAMUR
Simple attachment according to DIN EN ISO 5211
Blow-out-proof travel stop screws
Fast stroking speeds as standard

Accessories

Valve accessories
Manual gear
Locking Device
NAMUR throttle plates

Options

Hydraulic adjustment of the rotation speed
Special seals for temperatures from –55 to +80 °C or from –15 to +150 °C
Continuous operation at temperatures from –15 to +150 °C
Opening angles 120° and 180°
Dosing actuator with adjustable mid-position
Three-position actuator
Stainless steel rotary actuator
Travel stops extensible between 0° and 90° by using internal or external travel limitation

Information

Advertising material, general

WA 313
Flyer: Reliably Safe
Series 31a Actuators
[EN][DE]

Application Notes

AB 11
Information Sheet
SAMSON's modular design concept
Function blocks for valve accessories with NAMUR interface
[EN][DE]
AB 08
Filter Check Valve
Integrated into a screw-on body with G ¼ thread, degree of protection IP 56/66 or NEMA 4
[EN][DE]
AB 07
Vent Plugs
[EN][DE]
AB 12
Choke Valve
[EN][DE]
AB SAMLOOP
SAMLOOP Antriebsausrichtung
[DE]

Data Sheet

Support

Mounting and Operating Instructions

EB 31a
Pneumatic rotary actuator Edition 2010
Single and double-acting piston actuator
Type DAP and SRP
[EN][DE][AR][ES][PT][ZH]

Safety Manual

SH 31a
BR 31a Quarter-Turn Actuator, Edition 2010 and Edition 2020+
Type SRP and DAP
[EN][DE]

Certificates

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