Pneumatic Single Seat Control Valve

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Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic Single Seat Control Valve
Pneumatic controI valve

Pneumatic Single Seat Control Valve

ZJHP fine small pneumatic film single seat regulating valve adopts top guide structure, with multiple 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. 

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Description

Pneumatic Single Seat Control Valve
ZJHP fine small pneumatic film single seat regulating valve adopts top guide structure, with multiple 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℃ 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.



The Pneumatic Single Seat Control Valve is a high-performance flow regulation solution designed for precise control of liquids, gases, and steam in demanding industrial applications. Featuring a robust single-seat design and pneumatic actuation, this valve delivers exceptional shut-off capability, accurate flow modulation, and long-term reliability, making it ideal for oil & gas, chemical processing, power generation, and water treatment industries.

Key Features & Benefits


✅ Single Seat Design for Superior Shut-Off


  • ANSI Class IV/V shut-off ensures zero leakage in critical applications.
  • Precision-machined trim for accurate flow control with minimal hysteresis.


✅ Pneumatic Actuation for Fast & Reliable Response


  • 4-20mA, HART, or Fieldbus communication for seamless DCS/PLC integration.
  • Spring-return or double-acting options for fail-safe operation.


✅ High-Pressure & High-Temperature Capability


  • PN16 to PN100 (150–1500 psi) pressure rating for extreme conditions.
  • -29°C to 450°C (-20°F to 842°F) operational range.


✅ Wide Range of Materials & Trim Options


  • Body materials: Carbon steel, stainless steel 316, alloy C276.
  • Trim options: Standard, low-noise, anti-cavitation.
  • Seat materials: PTFE, metal-to-metal, Stellite.


✅ Low Maintenance & Long Service Life


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

Technical Specifications


Parameter Specification
Size Range DN15–DN300 (½"–12")
Connection Type Flanged (ANSI, DIN, JIS)
Flow Characteristic Linear, equal percentage, quick opening
Actuator Type Pneumatic (spring/diaphragm)
Temperature Range -29°C to 450°C (-20°F to 842°F)

Typical Applications


  • Oil & Gas: Flow control in pipelines, refineries, and offshore platforms.
  • Chemical Processing: Precise dosing of corrosive or abrasive fluids.
  • Power Generation: Steam and feedwater control in boilers and turbines.
  • Water Treatment: Flow regulation in filtration and disinfection systems.

Why Choose This Valve?


🔹 Precision Control: Ensures stable flow and pressure in dynamic systems.
🔹 Durability: Built for high-pressure, high-temperature, and corrosive environments.
🔹 Smart Integration: Supports IIoT and Industry 4.0 for remote monitoring.
🔹 Reduced Downtime: Easy maintenance and long service life minimize operational disruptions.


Ideal for: Process engineers, plant operators, and EPC contractors in critical flow control applications.


Certifications: ISO 9001, API 600, ANSI B16.34, SIL 2/3 (optional).


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