Pneumatic Diaphragm Angle Control Valve

Designed for demanding process control duties, the Pneumatic Diaphragm Angle Control Valve combines an angle-pattern body with pneumatic diaphragm actuation to provide responsive and accurate regulation of fluid flow. The angled flow passage helps manage high pressure drops and challenging flow conditions, while the diaphragm actuator delivers stable positioning and reliable modulation in automated systems. Its adaptable trim configuration allows the valve to be engineered for different pressure, temperature, and process media requirements.

The Pneumatic Diaphragm Angle Control Valve is particularly suitable for applications in chemical processing, petrochemical, oil & gas, power generation, steam systems, and other process industries. It can be configured with specialized trims for cavitation, flashing, erosion, and high-pressure-drop services, making it an effective solution for demanding control loops where stable flow regulation and responsive actuation are required.

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Technical Specifications

Parameter	Specification
Valve Type	Angle Globe Control Valve
Actuator Type	Pneumatic Diaphragm Actuator
Control Signal	4-20 mA / Pneumatic Signal
Nominal Size	DN15-DN400
Pressure Rating	PN16-PN420 / Class 150-Class 2500
Body Material	WCB, CF8M, CF8, Duplex Stainless Steel
Trim Material	SS304, SS316, Stellite Alloy
Temperature Range	-196℃~550℃
Flow Characteristic	Linear / Equal Percentage / Quick Opening
Leakage Class	ANSI Class IV / V / VI
Connection Standard	ASME B16.5, EN1092, GB/T9113
Application	Petrochemical, Power Plant, Chemical Industry

Features & Benefits

Provides precise automatic control of flow, pressure, temperature, and liquid level for optimized process performance.

Angle-Pattern Body

The 90-degree flow path can simplify piping layouts and provide favorable flow characteristics for high-pressure-drop applications.

Pneumatic Diaphragm Actuator

Provides responsive, repeatable valve positioning and supports reliable integration with automated process control systems.

Accurate Flow Regulation

Engineered plug and seat configurations allow continuous modulation to maintain stable process conditions.

High Pressure-Drop Handling

Specialized trim options can dissipate pressure energy progressively and reduce the effects of severe pressure differentials.

Anti-Cavitation Solutions

Multi-stage or pressure-reducing trim can be incorporated to mitigate cavitation and associated vibration and damage.

Low-Noise Trim Options

Engineered flow passages can reduce aerodynamic or hydrodynamic noise in demanding gas and liquid services.

Erosion-Resistant Construction

Trim materials and surface treatments can be selected for abrasive, flashing, or particle-laden media.

Fail-Safe Operation

Pneumatic actuator configurations can be arranged as fail-open, fail-closed, or fail-in-place according to process safety requirements.

Flexible Control Accessories

Positioners, solenoid valves, limit switches, air sets, and other instrumentation can be integrated for complete control-loop functionality.

Broad Process Application

Suitable for steam, gas, liquids, chemical fluids, pressure reduction, flow control, and other demanding applications across petrochemical, power, oil & gas, and chemical industries.

Application Scenario

Chemical Industry

Ball valves, butterfly valves, gate valves, globe valves, check valves, and control valves ensure safe fluid isolation, precise process control, and reliable operation in demanding chemical processing applications.

Oil Industry

Engineered for reliable isolation, flow regulation, and backflow prevention, our valve solutions support upstream, midstream, and downstream oil production and refining operations.

Natural Gas

Providing leak-tight sealing, dependable flow control, and safe pipeline operation for natural gas transmission, storage, LNG, and distribution systems.

Metallurgy

Built to withstand high temperatures, abrasive media, and harsh operating conditions in steelmaking, smelting, and metallurgical processing.

Power Generation

Ensuring reliable isolation, accurate flow control, and long-term performance in steam, boiler, turbine, and power plant systems.

Pharmaceutical

Delivering hygienic, precise, and contamination-free flow control for pharmaceutical manufacturing and clean process applications.

Steel Industry

Designed for high-temperature, high-pressure, and severe-service conditions in iron making, steelmaking, rolling mills, and auxiliary process systems.

New Energy

Supporting hydrogen, LNG, carbon capture, battery materials, and renewable energy projects with advanced valve solutions for safe and efficient process control.