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Pneumatic BZH series pneumatic actuator

Pneumatic BZH series pneumatic actuator

Pneumatic BZH series pneumatic actuator

Product Details:

Place of Origin: Tianjin, China (Mainland)
Certification: ISO9001 CE
Model Number: BZH

Payment & Shipping Terms:

Minimum Order Quantity: 1 PIECE
Packaging Details: plywood case
Delivery Time: 10-20 days
Payment Terms: T/T L/C Western Union Paypal
Supply Ability: 1000 pieces per month
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Detailed Product Description
Basic Error: ≤±1%;≤±4% (without Positioner) Return Difference: ≤1%;≤2.5% (without Positioner)
Dead: ≤0.8%;≤2.5% (without Positioner) Rated Stroke Deviation: ≤±2.5%;≤±4% (without Positioner)
Diaphragm Compressive Strength: 20~24MPa Working Life: Not Less Than 30 Million Times

· Belong to single-acting linear actuators,It can be used to drive Straight stroke valve,like Pass through valves, globe valves, etc.
· Small size, light weight, convenient operation and maintenance characteristics.
· The pneumatic control instrument input pressure is converted into displacement variation of putter.
· Connected with regulating valve,The spool can be moved to a position corresponding to the input signal.
· Multi-spring type, compact structure, large output force.
·According to user requirements, can be equipped with positioner, Air filter pressure reducer, limit switches, hand wheel, the solenoid valve.

Acting Type
Positive effects: BZHA positive-acting actuators,diaphragm air chamber Supply air pressure increases,Actuator push rod downward movement.
counteraction: BZHB counteraction actuator:diaphragm air chamber Supply air pressure increases,Actuator push rod upward movement.

Major component materials

The upper and lower diaphragm casing: steel
Diaphragm: NBR & nylon
Pressure spring: 60Si2Mn
Shaft seals: polyurethane (for counteraction)
Push lever:2Cr13

Main performance indicators

Basic error:≤±1%;≤±4% (without positioner)
Return difference:≤1%;≤2.5% (without positioner)
Dead: ≤0.8%;≤2.5% (without positioner)
Rated stroke deviation:≤+2.5%;≤+4% (without positioner)
Rated stroke deviation:≤±2.5%;≤±4% (without positioner)
diaphragm Compressive strength: :20~24MPa
Working life:not less than 30 million times

The main technical parameters

Model BZHA/B-11 BZHA/B-22 BZHA/B-23 BZHA/B-34 BZHA/B-45 BZHA/B-56
Stroke mm 10 10,16 16,25 40 40,60 100

Effective area


200 350 350 560 960 1600
Air supply connection M10×1 M12×1.25 M16×1.5
Air supply pressure 0.14MPa,0.25MPa
Ambient temperature -30℃~+70℃

Spring pressure range





Overall dimensions Chart

Pneumatic BZH series pneumatic actuator





L (mm) 80/70 100/84 100/75 154/114 180/115 260/160
H2 (mm) 220 270 300 375 490 720
D1 (mm) / 80 80 105 122 130
D2 (mm) 32 60 60 80 95 100
A (mm) 236 285 285 360 470 620
n-φd (mm) / 2-φ10 2-φ10 4-φ12 4-φ14 4-φ18
M M8 M8 M8 M12×1.25 M16×1.5 M20×1.5
Weight(Kg) 10 12 16 22 52 125

Contact Details
Tianjin Bell Automatic Instrument Technology Co., Ltd

Contact Person: Mr. Jack

Fax: 0086-22-27529983

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