HLS small diameter single seat control valve

Overview

HLS small-caliber single-seat control valve can be used to control various pressure and temperature fluids. The valve body is S streamlined channel with small pressure drop loss, large flow, wide adjustable range, high flow characteristic accuracy, and multi-spring type. The film actuator is used together, with compact structure and large output force.

The main technical parameters

Valve body

Type: straight through single seat casting ball valve
Nominal diameter: DN20, DN25
Nominal pressure: PN1.6MPa, PN4.0MPa, PN6.4MPa
ANSICL150, 300, 600
Connection type: flange type PN16 convex surface; PN40, 64 convex and concave surface
ANSI B16.5 RF, RJ, FF, LG
Body bonnet material: WCB (SCPH2)
Spool material: 0Cr18Ni9
Seat material: 0Cr17Ni12Mo2
Stem material: 0Cr18Ni9
Temperature: normal temperature type -40 ~ 230 ℃

Gland type: bolt compression
Filling: V-type PTFE, impregnated PTFE asbestos, asbestos braided packing

In-valve assembly

Spool type: single seat plunger
Flow characteristics: equal percentage (%)
Leakage: GB/T4213 Zero leakage
Sealed version: hard seal
Adjustable range: 50:1 (CV≧1.0) 30:1 (CV≦0.63)

Executive agency

Type: LA(B) multi-spring film actuator
Spring range: 40～200KPa
Supply pressure: 0.24MPa
Air source interface: G1/4
Ambient temperature: -40 to +70 °C
Accessories: AVP300 Yamatake Electric Valve Positioner, T50 Air Filter Reducing Valve

Flow coefficient CV value and stroke