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Pneumatic V-type wafer ball valve


Product model: VQ677H / Y / F

Nominal diameter: DN25 ~ 300mm NPS1 "~ 12"

Pressure range: PN1.6MPa ~ 4.0Mpa class150lb

Service temperature: - 29 ℃ ~ 425 ℃

Applicable media: water, oil, gas, high viscosity, containing fiber, solid particles, etc

Valve material: stainless steel 304, 316L

Structure: fixed ball valve

Supporting accessories: solenoid valve, positioner and position switch

Air source accessories: air source treatment triplet



PRODUCT FEATURES

Pneumatic V-type wafer ball valve is composed of pneumatic actuator, solenoid valve, positioner and V-type wafer ball valve. The ball center of V-type wafer ball valve is designed with special V-shaped notch, which has good shear force and self-cleaning performance. Pneumatic V-type wafer ball valve uses compressed air as power to receive (4 ~ 20mA) industrial signal, drive the rotation of valve rod and drive the rotation of ball center (0-90 °) at any angle to complete the opening and closing of valve. Pneumatic V-type wafer ball valve is widely used in oil, viscous liquid, pulp, syrup, fiber, etc., especially in the pipeline of medium containing solid particles, as the control and proportional regulation of medium flow.


PERFORMANCE CHARACTERISTICS

1. The ball center of the valve is designed with a special V-notch, which has good shear force and self-cleaning performance. Especially for pulp, syrup and granular media, it can be cut off and adjusted instantly.

2. The valve has accurate control degree, large flow coefficient and good sealing performance. Flow characteristics up to 300:1 adjustable ratio. It can still be well controlled within a wide range of pipeline flow.


MAIN TECHNICAL PARAMETERS

Nominal pressure

PN(MPa)

Test pressureApplicable mediaApplicable temperature
Shell testSealing test
1.62.41.76Water, oil, gas and medium with high viscosity, containing fiber, solid particles, etc-29℃~425℃
2.43.752.75
4.06.04.4
Application specificationConnecting clipJB79-59 GB20592-97 AMSI B16.5
Inspection and testJB/T 9092-99 、API 598


MATERIAL OF MAIN PARTS

Part nameValve material
Valve body and bonnetWCBCF8
Seal ring2Cr13+nitridation304+nitridation
sphere2Cr13+Hard lattice304+Hard lattice
Valve seat, valve stem2Cr13304
ShimFlexible graphite + stainless steelFlexible graphite + stainless steel
Stud bolt35CrMoA


Main connection dimensions

Nominal pressure or

Pressure level

Nominal diameterDimension (mm)
(mm)(in)WW1dd1H1H
PN1.6MPa25-5025643857200
40-6025824963205
50-75321006092225
65-853812075100235
80-1004513189108260
100-11550158113117270
125-13555180140140320
150-16065216164177370
200-20080268205200390
250-24092326259252420
300----300270510
PN2.5MPa25-5025643857200
40-6025824963205
50-75321006092225
65-853812075100235
80-1004513189108260
100-11550158113117270
125-13555180140140320
150-16065216164177370
200-20080268205200390
250-24092326259252420
300----300270510
CLASS1502515025643857200
401-1/26025824963205
50275321006092225
652-1/2853812075100235
8031004513189108260
100411550158113117270
125513555180140140320
150616065216164177370
200820080268205200390
2501024092326259252420
30012---300270510

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