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1-1/2" DN40 Pneumatic Diaphragm Globe Shut-off Valve

Pneumatic diaphragm shut-off globe valve for industrial pipeline control is designed for automatic on/off control in industrial pipeline systems. It features a nominal pressure of PN16 / 1.6 MPa, a rated flow coefficient of Kv 30, a rated stroke of 12 mm, and a diaphragm effective area of 200 cm². Its pneumatic diaphragm actuator provides stable operation and reliable shut-off performance for process control applications.
SKU: CCHN-PGV-DN40
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Delivery date: 6-25 days

Note: This globe valve cannot be used for drinking water.

1 1/2" pneumatic globe valve is constructed with high-quality 304 stainless steel. Its design incorporates a positive action allowable pressure difference of 1.18 and an opposite reaction of 2.91, providing stability and reliability under varying pressure conditions.

Pneumatic globe valve equipped with a pneumatic diaphragm actuator, DC24V solenoid valve, limit switch, and air filter regulator for use together.

Feature

  • By using a thin-film multi-spring actuator connected to the adjusting mechanism by three columns, the overall height can be reduced by about 30 per cent and the weight by about 30 per cent. The overall height can be reduced by about 30 per cent and the weight by about 30 per cent.
  • The valve body is designed according to the principle of fluid dynamics into an equal cross-section low flow resistance flow path, the rated flow coefficient increases by 30%.
  • Compact structure, light weight, sensitive action, fluid channel is S streamline, small pressure drop loss, large capacity, easy disassembly and installation.
  • Top-guided construction with multi-spring membrane actuator.

Specification

Model CCHN-810D-1S2A-4DK41-DN40
Pipe Diameter 1-1/2" DN40
Nominal Pressure PN16 MPa
Rated Flow Coefficient 30 KV
Rated Stroke 12 mm
Film Effective Area 200 cm²
Allowable Pressure Difference Positive Action: 2.18
Opposite Reaction: 2.91
Signal Pressure 0 or 250
Allowable Leakage Hard Seal: General: 10-4 × valve rated capacity; Tight type: single-seat: 1.2 × 10-7
Soft Seal: Class VI
Operating Temperature ≤ 250℃
Connection Method Flangeless
Medium of Use Gas and Liquid
Valve Body Material 304
Bonnet Type Standard type (-17 ~ +250℃)
Cover Type Screw compression type
Sealing Material V-shaped PTFE packing, reinforced PTFE packing, graphite braided packing, flexible graphite
Valve Core Type Single-seat spool
Flow Characteristics Quick opening characteristic
Included Accessories Pneumatic diaphragm actuator, DC24V solenoid valve, limit switch, and air filter regulator.


Dimension (Unit: mm)

DN40 pneumatic globe valve size

DN A L H H1 H4
40 290 222 75 180  310


Application

 Pneumatic globe valve application

Tips: What is the purpose of a Pneumatic Globe Valve?

A Pneumatic Globe Valve serves the purpose of regulating the flow of fluid within a pipeline. It is a type of control valve that controls the flow by either fully opening, fully closing, or partially obstructing the passage of the fluid. Here's a detailed breakdown of the purposes and functionalities of a Pneumatic Globe Valve:

  • Flow Control: The primary function of a Pneumatic Globe Valve is to control the rate of flow of fluid through a pipeline. This is achieved by adjusting the position of the valve disc or plug inside the valve body.
  • Versatility: Pneumatic Globe Valves are versatile and can be used in various applications across different industries, including but not limited to oil and gas, chemical processing, water treatment, power generation, and more.
  • Pneumatic Actuation: These valves are operated using pneumatic actuators, which convert energy from compressed air into mechanical motion. Pneumatic actuation allows for precise and rapid control of the valve position, making it suitable for automated processes.
  • On/Off and Throttling Applications: Pneumatic Globe Valves can be used for both on/off service and throttling applications. In on/off service, the valve is fully open or fully closed, while in throttling applications, the valve is positioned to regulate the flow at a specific rate.
  • Pressure Drop Regulation: The design of the globe valve allows for effective regulation of pressure drop across the valve. This feature is particularly useful in applications where maintaining a specific pressure is critical.
  • Directional Flow Control: The flow path through a Pneumatic Globe Valve is perpendicular to the direction of the motion of the disc or plug. This design allows for precise control over the flow and is especially beneficial in applications where directional control is crucial.