Butterfly Valve- A&S Actuator.,Ltd
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Butterfly Valve

Butterfly Valve

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
A butterfly valve is from a family of valves called quarter-turn valves. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.
We speclized in providing various top brands of Butterfly valves at the types of lug-style butterfly valves, wafer style butterfly valves,resilient butterfly valve,high performance butterfly valve,etc.
These different kinds of butterfly valves, each adapted for different pressures and different usage. The resilient butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high performance butterfly valve, used in slightly higher-pressure systems, features a slight offset in the way the disc is positioned, which increases the valve's sealing ability and decreases its tendency to wear. The valve best suited for high-pressure systems is the triple offset butterfly valve, which makes use of a metal seat,[clarification needed] and is therefore able to withstand a greater amount of pressure.

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN600

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN600


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN500

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN500


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN450

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN450


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN400

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN400


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN350

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN350


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN300

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN300


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN250

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN250


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN200

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN200


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN150

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN150


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN125

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN125


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN100

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN100


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -
VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN80

VALBIA Disc AISI 316 Lug Type Series 86 Butterfly Valve DN80


Art. 8M040*** (EPDM),Art. 8M102*** (NBR) with electric actuator series 86. DN 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 PN - 16 -

Contact Us

  • A&S Actuator Co., Ltd.
  • 469 Xinsheng Road, Gaoxin District, Chengdu, Sichuan, China
  • Tel: +86-28-67638639
  • Fax: +86-28-86129221
  • Email: actuator@attachment8.com
  • Contact Person: Leo Zhang

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About Us

A&S Actuator Co., Ltd. is specialized in supplying a wide range of actuators, butterfly valves and cylinders.

Actuators Types:
electric actuators, pneumatic actuators, hydraulic actuators, rotary actuators, linear actuators, magnetic linear actuator, solar actuator, valve actuators, high speed actuators, low pressure actuators, heavy duty linear actuators, piston actuators.


Actuators Brands:
Ouma, Rotork, Honeywell, Kinetrol, Keystone, Parker, SMC, Air Torque, ARI, Azbil, Yamatake, Mitsubishi, OTK, OMAL, etc.

Butterfly Valves:
Danfoss, SMC, OMAL, Siemens, Yamatke, KITZ, etc.

Pneumatic Cylinders / Air Cylinders:
Bosch Rexroth, Parker, DELIXI, SMC, Festo, CKD, Camozzi, Koganei, AirTac, TPM, JMC, TPC, NORGERN, CHELIC, SNS, etc.

Our products have been exported to many regions, such as Europe, America, South Africa, South Asia and the Middle East countries, etc. We have earned a reputation for high-quality products and personalized customer service.

We would like any cooperation. Welcome to contact us for further information.

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