Pneumatic Sleeve Control Valve

Pneumatic Sleeve Control Valve

ZJHM fine small pneumatic film sleeve regulating valve adopts top guide structure, with multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, s-streamline fluid channel, small pressure drop loss, large valve capacity, accurate flow characteristics, convenient disassembly and assembly. Widely used in precise control of gas, liquid and other medium process parameters such as pressure, flow, liquid level to maintain a given value. It is especially suitable for small leakage and small pressure difference before and after the valve. The nominal pressure levels of products are PN16, 40, 64; Nominal diameter range DN20 ~ 400. Suitable for liquid temperature from 200°C to +560°C range of various grades. The leakage standards are grade iv or vi, and the flow characteristics are linear or equal percentage. A variety of character specifications to choose from.

Key Features & Benefits

• Precise flow control with minimal friction and wear, even under high-pressure drops.
• Reduced vibration and noise (ANSI Class IV seat leakage compliance).

• 4-20mA or digital signal control for seamless integration with DCS/PLC systems.
• Fail-safe options (spring return) for critical shutdown scenarios.

• PN40 (600 psi) pressure rating for extreme conditions.
• -29°C to 450°C (-20°F to 842°F) operational range.

• Multi-stage anti-cavitation trim for steam, gas, and liquid applications.
• Body materials: Carbon steel, stainless steel 316, alloy C276.
• Seat materials: Stellite, PTFE, metal-to-metal.

• Modular design for easy disassembly and maintenance.
• Self-cleaning trim reduces clogging in dirty or particulate-laden flows.

Technical Specifications

Typical Applications

• Power Generation: Steam and feedwater control in boilers and turbines.
• Oil & Gas: Pressure regulation in pipelines and refineries.
• Chemical Processing: Precise dosing of corrosive or abrasive fluids.
• HVAC: Flow control in heating/cooling systems.

Why Choose This Valve?