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Pneumatic stainless steel insulation ball valve, pneumatic insulation jacket ball valve, steam heat conduction oil insulation ball valve BQ641F

discount 70% in 2018-09-24 to 2018-09-26
price: USD$ 350.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Pneumatic stainless steel insulation ball valve, pneumatic insulation jacket ball valve, steam heat conduction oil insulation ball valve BQ641F


BQ641F pneumatic insulation ball valveThe piston is a pneumatic actuator and jacket insulation ball valve, has a good insulation and cooling characteristics, and pneumatic insulation ball valve diameter and diameter consistent, but also can effectively reduce the medium heat loss in the pipeline. Valve positioner can be input control signal (4-20mADC or 1-5VDC) air source can control the operation. The switch can be operated with the limit switch, solenoid valve, triple component and 0.4-0.7MPa gas source, and two pairs of passive contact signal indicating valve switch can be sent out. Jacket insulation pneumatic ball valve is mainly used in petroleum, chemical, metallurgy, pharmaceutical, food and other systems, to transport high viscosity medium at room temperature. Because the pneumatic insulation ball valve adopts the integral structure, the jacket insulation pneumatic ball valve has smaller volume, lighter weight and no leakage than the general ball valve, and the sealing performance is good, and the jacket is welded by carbon steel pipe, which is more stable than the casting.

Valve body and internals

Valve body form, nominal diameter, nominal pressure flange, standard connection form, gland type, applicable temperature, sphere form, flow characteristics, sealing filler


Two stage casting valve body (external welding jacket insulation)
PN1.6、2.5、4.0 MPa;ANSI 150、300LB ;JIS 10、20、30K
Flange type
Bolt pressing type
"O" sphere
Approximately fast opening characteristic
Flexible graphite filler, etc.



Executive agencies

Actuator type, air supply pressure, gas source interface, environmental temperature action form can be equipped with accessories


GT, SR, ST, AT, AW series of single and double acting pneumatic actuators
Single acting actuator: gas shut off (B) - valve opening (FO) when gas is out of breath; gas open (K) - valve position off (FC) when air is out of breath
Double acting actuator: gas shut off (B) - valve position holding (FL) when gas lost; gas open (K) - valve position holding (FL) when lost air
Positioner, solenoid valve, air filter pressure reducer, retaining valve, stroke switch, valve position conveyor, hand wheel mechanism, etc.



Note: if the actuator parameters are required, please consult the pneumatic actuator page.

In the material of main parts



Left valve bodyCast steel, stainless steel
Right valve bodyCast steel, stainless steel
valve seatStainless steel and cemented carbide
sphere2Cr13+ hardening treatment, 304, 316
ShimFlexible graphite and Teflon
The stem2Cr13、304、316
fillerFlexible graphite and Teflon
GlandCast steel, stainless steel
BracketCast steel, stainless steel
ActuatorIt depends on the actual configuration