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Pneumatic Control Valves

Pneumatic control valves

GKV18C/16N/16H Series Control Valves

Characterized By Short Actuating Times, Optimized Actuating Forces, And Reliable Tight Sealing. GKV18C/16N/16H Control Valves Are Also Available With Electric Or Electrohydraulic Actuators.
Multi-Functional Positioner: 
The GK2300 Digital Positioner Is A Multi-Functional Interface With Integrated Bus Support For The Controller Or Process Control System. Installation And Mechanical Connection To The Valve Actuator Are Compliant With VDI/VDE 3847 Guidelines For Open, Non-Proprietary Concepts. 

Reliable Stem Seals: 
From The Stuffing Box To The Hermetically-Sealed Bellows, This Stem Seal Can Be Tailored Exactly To The Process Fluid, Pressure, And Temperature Required. The Design, Stem Surface, And Packing Material Complement Each Other Perfectly To Avoid Problems With Friction, Corrosion, And Emissions. 
Fixed-Form Housing Seal:
Our Design Connects The Valve Housing And The Bonnet In The Force Bypass, And The Housing Seal Is Clamped In Place Preventing It From “Yielding”. 
Robust, High-Precision Valve Trims: 
These Are Specially Designed For The Prevailing Flow Conditions In Your Plant. The Shapes Of The Throttle Valves And Valve Seats And The Material From Which They Are Made Are Optimized To Meet Your Requirements. Our Valve Seats Integrate The Unique Quick-Exchange System And Can Be Replaced Without Special Tools. The Float-Mounted Clamping Seat And The Metal Or Soft Seal For The Valve Seat Ensure Leak-Tight, Reliable Sealing.

We Innovate, You Benefit! 

Patented Valve Seat With PTFE Soft Seal And Metal Secondary Seal

- Absolute Seat Tightness
- Defined Preload
- Long Service Life 
Symmetrical Seat Rings Made From A Wide Variety Of Materials:
- Reproducible Seat Tightness Due To Self-Centering
- Low Wear And Tear Minimizes Cost Of Spare Parts
PTFE V-Ring Packing With Additional Precision Sealing Element:
- Safety And Hermetic Sealing
- Low Maintenance 
Double-Life Quick-Exchange System For Seat Rings And Plugs:
- Maintenance Without Special Tools 
The Wide Variety Of Valve Trims Optimised For All Applications:
- Maximum Process Flexibility With High Control Quality
- Low Noise Emissions 
Valve Plug And Stem Can Be Replaced Separately:
- Reduced Storage
- Cost-Effective Plug Replacement
Flow-optimized Valve Housing:
- High Flow Coefficients, Low Noise Emission
Compact, Robust Design:
- Minimum Mounting Space Required, Low Weight


Pneumatic Diaphragm Control Valve Specification.

1Air Driven: The Compressed Air 5-7bar (Available With Hand Wheel)

2Nominal Diameter: 20 ~ 200mm

3Nominal Pressure 1.6 ~ 6.3Mpa

4Suitable Temperature: -29 ~ +425

5Flange Connection

6Valve Structure: Single Seater, Sleeve, Three Links, Angle

7Valve Material: Cast Iron, Carbon Steel, 316, 304

8Valve Material: Alloy, 316, 304

9Sealing Material: PTFE, Alloy

10Suitable Medium: Gas, Water, And Oil Etc

11Optional Accessories: Limit Switch, Solenoid Valve, The Valve Positioner





Model Type

Nominal Size (DN/NPS)

Nominal Pressure (PN/ANSI)


DN15-100 / 1/2”– 4”

PN16-40 / Class 150-300


DN150-500 / 6“– 20“

PN16-40 / Class 150-300


DN(15)25-200 / (1/2)1-8

PN63-250 / Class600-1500


Equal Percentage Or Linear/Stem Guided,

Option: Integrated Double Guiding (Retrofit Able) /Equal Percentage Or Linear


50:1 / 40:1 / 40:1

Plug Guide

Stem Guided, Option: Integrated Double Guiding (Retrofittable) For DN40-DN100(1/2-4)/Metal Sealing: IEC 50534-4 Leakage Class IV (0.01% Kvs-Value): Optional Leakage Rate V; Soft Sealing: IEC 50534-4 Leakage Class VI/Metal Sealing: IEC 50534-4 Leakage Class IV (0.01% Kvs-Value): Optional Leakage Rate V; Soft Sealing: (IEC 50534-4 Leakage Class VI Soft Sealing On Request)

Seat Leakage

Metal Sealing: IEC 50534-4 Leakage Rate IV (0.01% Kvs Value): Optional Leakage Rate V; Soft Sealing: IEC 50534-4 Leakage Rate VI/

Bellows Seat(Optional)

Seamless, Double Walled, Made Of 1.4571; Opinion: Hastelloy And Other Materials

Heating Jacket(Optional)

Connection DN 15 PN 40 (1/2 ANSI 300) Flanges

Low-Temperature Version(Optional)

Down To -196, With Cover Flange If Required