Pneumatic v-type ball valves are composed of pneumatic horizontal piston actuators (hereinafter referred to as pneumatic piston actuators) and v-type ball valves. It powered by compressed air, stem drive the ball in the valve body rotate 90 degrees, realization of full open to full close action, the v-shaped ball core has a shearing action between mouth and his seat, has the extremely good regulating and cut off performance, widely used in petroleum, chemical industry, papermaking, metallurgy, sewage treatment, oil tank truck etc, for all kinds of liquid, gas, slurry type fluid medium such as regulation and cut off the control, especially suitable for control of high viscosity, medium with fiber and fine particles.
specifications
□Main technical parameters
○The valve body
Type: concentric Angle stroke type
Nominal size: 25 ~ 300mm
Nominal pressure: M (DN25 ~ 300)
JIS10K, 20K, 30K
ANSI 150, 300
PN1.6, 2.5, 4.0 and 6.4MPa
H class (DN25 ~ 150)
JIS 40K, ANSI600, PN6.3
Connection type: clamping flange standard JB/T79.1 ~ 2-94 FF RF
Materials: WCB, CF8, CF8M
(SCPH2, SCS13A, SCS14A)
Filling: ptfe asbestos packing, flexible graphite packing
Internal assembly
Spool type: part of a spherical globe with a v-notch
Spool material: CF8, CF8M nitriding treatment or surface spray welding carbide
The seat material and using temperature: soft seal (R) ptfe - 20 ~ + 180 ℃
Fill four fluorine - 20 ~ + 180 ℃
Para polystyrene - 40 ~ + 350 ℃
Hard seal (y) CF8, CF8M or surface spray welding carbide carbide - 40 ~ + 450 ℃
Shaft material: 2Cr13, CF8, CF8M
Shaft sleeve material casting copper alloy, CF8, CF8M
Executive mechanism
Type: DA and SR pneumatic piston actuators, 6300RA pneumatic piston actuators
Air supply pressure: 400 ~ 700kpa
Origin interface: g1/8 ", g1/4"
Ambient temperature: - 30 ~ 60 ℃
Action pattern: single - acting gas open type or gas close type
Double acting according to the signal conversion control valve open, valve close
(other actuators can be configured as required)
Main performance parameters
Seat material and medium temperature and leakage grade are allowed
○Technical performance
Annex configuration (as required)
Positioner, air filter pressure reducing valve, handwheel mechanism, limit switch, solenoid valve, valve position position transmitter,
Pneumatic accelerator, position guard valve, others.
Maximum allowable pressure difference
Adjustment of pressure difference allowed
Double acting cylinder actuator/air source pressure 400KPa
Table 5-1a m-class valve body soft seal (FN, FV, CS, PL)
Table 5-1b metal seal (H type, HS type, HB type)
○Double acting cylinder actuator/air source pressure 400KPa
Table 5-2a H valve body soft seal (FN, FV, CS, PL)
Table 5-2b hard seal (H type, HS type, HB type)
○Single acting cylinder actuator/air source pressure 400KPa
Table 5-3a soft seal of class M valve body (FN, FV, CS, PL)
Table 5-3b metal seal (H type, HS type, HB type)
○Single acting cylinder actuator/air source pressure 400KPa
Table 5-4a H valve body soft seal (FN, FV, CS, PL)
Table 5-4b hard seal (H type, HS type, HB type)
Overall dimensions
Table 6-1 ANSI 150, 300 long x width x height (excluding annex)
Table 6-2 ANSI 150, 300 long x width x height (excluding annex)
Table 7-1 ANSI 600 outline dimension length x width x height (excluding attachments)
Table 7-2 ANSI 600 outline dimension length x width x height (excluding attachments)
Table 8
