Pneumatic V-type ball valve

Overview

This kind of product is assembled by V-shaped regulating ball valve body part or eccentric valve body part and fine small single-acting and double-acting piston type actuator. The core of V-shaped regulating ball valve is V-shaped, which can realize proportional adjustment. The adjustable range is large. When the valve is closed, the V-shaped notch and the valve seat have a wedge-shaped shearing effect. It has both self-cleaning function and prevents the core from being stuck. It is especially suitable for controlling low pulp, sewage, fiber and Solid solid and powder medium, fine small single and double acting piston actuators are beautiful in appearance, small in size, stable in action and reliable, and can be adjusted automatically by valve positioner.

The main technical parameters

Valve body
Type: Straight-through casting ball valve
Nominal diameter: DN25 ~ 400;
Nominal pressure: PN1.6, 4.0, 6.4MPa
PN16 convex surface PN40, 64 convex and concave surface
Connection type: flange connection
Body and bonnet material: WCB(SCPH2) CF8(304) CF8M(316)CF3M(316L)
Internal material: CF8M (316) CF3M (316L)
Operating temperature: normal temperature type -40 to 250 ° C, medium temperature type -40 to 350 ° C, high temperature type -40 to 450 ° C
Filling: V-type PTFE, asbestos braided packing

In-valve assembly

Spool type: V-notch ball type spool
Flow characteristics: approximate equal percentage
Sealing type: metal seal, soft seal
Leakage: GB4213/T Class III (hard seal), "0" (soft seal)
Adjustable range: 30:1

Executive agency

Type: piston type actuator double acting DA type, piston type actuator double acting type SR
Air source pressure: 0.4 ~ 0.6MPa
Function type: double action type, spring return type
Rated angle: 90°
Accessories: electric valve positioner, pressure reducing valve, valve position transmitter, hand wheel mechanism, etc.
Special requirements: HART protocol

Flow coefficient CV value