Pneumatic Control Valve
Description
Pneumatic Control Valve
Industrial Pneumatic Globe Control Valves | WCB / SS | Two Way & Three Way
MNC Valves is a Manufacturer of Pneumatic Control Valve in India supplying industrial control valves designed for accurate regulation of flow, pressure, and temperature in automated process systems.
Pneumatic control valves operate using compressed air actuators which provide fast response and reliable throttling performance in industrial pipelines.
These valves are widely used in process industries including chemical plants, power plants, water treatment systems, and industrial automation systems.
MANUFACTURING STANDARDS
Manufactured in accordance with internationally recognized engineering standards:
- ASME B16.34 β Pressure Temperature Ratings
- ASME B16.5 β Flanged End Connections
- API 598 β Testing & Inspection
- IEC 60534 β Control Valve Performance
- ISO 5211 β Actuator Mounting Interface
PRODUCT DESIGN OVERVIEW
Pneumatic control valves regulate process flow through a modulating valve plug controlled by a pneumatic actuator.
The actuator receives signal input from a controller and adjusts valve position to regulate the process variable.
Typical configuration includes:
- Valve body
- Trim assembly (plug, seat, stem)
- Pneumatic diaphragm actuator
- Positioner (optional)
This design enables continuous throttling and precise flow regulation.
VALVE CONFIGURATIONS
Two Way Pneumatic Control Valve
Two way control valves regulate flow between a single inlet and outlet.
Functions:
- Flow control
- Pressure regulation
- Temperature control
Used in most industrial flow control applications.
Three Way Pneumatic Control Valve
Three way control valves are used for mixing or diverting services.
Types include:
- Mixing valve configuration
- Diverting valve configuration
Commonly used in heat exchangers and temperature control systems.
SIZE & PRESSURE RANGE
- Size Range: DN 15 mm to DN 300 mm
- Larger sizes available on request
Pressure ratings depend on body material and design conditions.
MATERIALS OF CONSTRUCTION
| Body Material Options | Trim Materials | Seat Materials |
|---|---|---|
| WCB β Carbon Steel, SS304 β Stainless Steel, SS316 β Stainless Steel | Stainless Steel trim, Hardened trim options available | PTFE, Metal seat (application dependent) |
DESIGN FEATURES
Pneumatic actuators available include:
Spring Return Pneumatic Actuator
- Fail open or fail close operation
- Used in safety critical applications
Double Acting Pneumatic Actuator
- Used where compressed air supply is continuous
- Faster response operation
Accessories available:
- Electro-pneumatic positioner
- Limit switches
- Air filter regulator
TESTING & QUALITY CONTROL
All control valves are tested according to API 598.
Testing includes:
- Hydrostatic shell test
- Seat leakage test
- Functional actuator test
- Stroke testing
Third-party inspection can be arranged upon request.
OPERATING PRINCIPLE
Pneumatic control valves receive a control signal from the process control system.
The actuator moves the valve stem to adjust the valve opening.
This regulates process parameters including:
- Flow rate
- Pressure
- Temperature
Continuous modulation allows accurate process control.
INDUSTRIES SERVED
Pneumatic control valves are used in:
- Chemical processing plants
- Power generation plants
- Water treatment facilities
- HVAC systems
- Industrial automation systems
Frequently Asked Questions
ENQUIRY DETAILS REQUIRED
To select correct valve, please provide:
- Size Size
- Pressure rating
- Process media, Temperature
- Flow requirement
- Two way or three way configuration
- Actuation requirement
- Quantity
Our engineering team will assist in selecting the correct pneumatic control valve configuration.
