Product Introduction

Stop Valve Needle Valve SHV4
Product Introduction

Needle Globe Valve SHV4 is suitable for high pressure and high temperature pipelines in thermal power plants as an opening and closing mechanism, can control the full opening and full closing of the oil circuit, and can also throttle by adjusting the opening of the poppet valve. It is mainly applicable to EH oil control system, actuator assembly, pump outlet control block, hydraulic accumulator assembly, etc.

Product Display

Stop Valve Needle Valve SHV4
Stop Valve Needle Valve SHV4

Stop Valve Needle Valve SHV4
Stop Valve Needle Valve SHV4

Technical Specification

Nominal Pressure: PN25Mpa

Nominal Diameter: DN4

Working Media: oil, water, gas and other non corrosive or corrosive media

Temperature: - 20 ℃~+440 ℃

Materials: 1Cr18Ni9Ti, 304, 316, 316L, etc

Standard: GB, ANSI, JIS

Working Principle

The high pressure oil supplied to the actuator flows to the servo valve through needle valve SHV4 to operate the actuator. When the needle valve is closed, the high-pressure oil circuit is cut off, so that the actuator stops when the steam turbine is running, so as to replace the filter elements and servo valve.


The needle valve SHV4 consists of valve stem, body, valve seat, gasket, sealing ring, cone core, cap, etc. The valve body material is forged from high-quality carbon steel stainless steel (1Cr18Ni9Ti) or heat-resistant alloy steel (12CrMoV).

Features of Needle Valve SHV4

1. It is widely used in steam turbine systems and industrial hydraulic systems.

2. The friction between sealing surfaces is small during opening and closing, which is durable and convenient for maintenance.

3. The sealing surface of the valve clack and the valve seat are closely fitted to prevent the medium from flowing.

4. Rich functions: media transmission, cut-off, adjustment and other functions.

5. Simple structure, small volume, light weight, compact and reliable, easy to operate.

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