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Internal-Setting Self Operated Micro Pressure Regulating Valve

Home Pressure Regulating Valve

Internal-Setting Self Operated Micro Pressure Regulating Valve

Internal-Setting Self Operated Micro Pressure Regulating Valve

GKSP429 Internal Setting Self-Operated Micro Pressure Regulator is a spring set direct acting micro pressure regulating valve that can throttle and reduce pressure of high pressure gas to extremely low pressure, and is only used for post valve control. Suitable for micro pressure control of various gases, especially for micro pressure nitrogen sealing systems. The minimum control pressure is 0.3KPa, the maximum control pressure is 15KPa, the minimum operating temperature is -48 ℃, and the maximum operating temperature is 120 ℃.

Internal-Setting Self Operated Micro Pressure Regulating Valve

 

Size Range

1/2" – 8" (DN15 – DN200), custom sizes available


Body & Bonnet Material

Carbon Steel: ASTM A216 Gr. WCC
Stainless Steel: ASTM A351 Gr. CF8M


Temperature Range

NBR: -29°C ~ +82°C
FKM: -8°C ~ +120°C
SR: -48°C ~ +85°C
EPDM: -38°C ~ +115°C
PTFE: -40°C ~ +150°C
Bellows 316/316L: -40°C ~ +300°C


Stem / Shaft Material

Carbon Steel Bodies: 17-4 PH SS
Stainless Steel Bodies: 316 SS (Nitronic 50 optional for chemical applications)


Working Pressure

Up to 725 psi (50 bar), ANSI Class 150, 300, 600 (per B16.34)


Seats & Seals

Hard Seat: Standard metal sealing
Soft Seat: 316 SS with PTFE insert (Class VI, up to 232°C / 450°F)


Packing & Gland

PTFE/Kevlar (285 K asbestos-free), GRAFOIL optional


Trim / Plug Materials

316 SS, Stellite #6, hardfaced seat options


Actuator Compatibility

Diaphragm or Bellows Type, Modulating or On-Off


Flow Direction

Flow to Open or Flow to Close


Special / Optional Materials

Nitronic 50, Copper-free alloy, NACE-compliant materials


End Connection Standards

Flanged: ANSI 150, 300, 600; Weld Ends SW/BW; Wafer


Design Standards

ANSI B16.34, ANSI B16.47, API 598, IEC 534, GB/T 12237


Applications

Industrial, chemical, and high-temperature fluid control systems


Safety Features

Blow-out proof stem, backup bellows seal, overload protection, oxygen-clean and oil-free options


Trim Types & Flow Capacity

Single-seat or Cage-type plug; Rated Cv values per table; Linear, Equal % or Quick Open


 

Characteristics of Self Operated Micro Pressure Regulating Valve

 

High-Precision Pressure Control Valve – Compact, Sensitive & Safe

Compact Design – Integrated spring structure makes the valve compact

while offering excellent protection.

 

Packing-Free Construction – Minimizes friction for precise micro-pressure

control and reduces leakage points.

 

Thrust Amplification – Lever mechanism amplifies diaphragm force 6 times,

ensuring accurate regulation and full shut-off at micro-pressure.

 

Overload Protection – Safety system unloads excessive force to prevent

damage, allowing the actuator to withstand upstream pressure.

 

360° Rotatable Actuator – Easy installation and adjustment even in tight

spaces without affecting performance.

   

Unique Design of GEKO Self Operated Micro Pressure Regulating Valve

 

Screw-Type Pressure Control Valve – Easy Adjustment & Reliable Performance

Screw-Type Adjustment Mechanism

The valve features a screw-type adjustment mechanism, making pressure

regulation easier, faster, and more convenient for operators.

 

Soft-Seated Valve Plug

Equipped with a soft-seated valve plug, the valve can achieve complete shut-

off of the fluid when closed, ensuring tight sealing and minimal leakage.

 

Durable Stainless Steel Actuator

The actuator, a critical component of the pressure control valve, is formed

from stainless steel, providing high pressure resistance, durability, and long

service life.

 

360° Rotatable Actuator for Flexible Installation

To accommodate diverse piping layouts and limited installation space, the

GZ880 actuator and adjustment mechanism can rotate 360° without

disassembly,  allowing easy calibration and observation without affecting the

valve’s original performance parameters.

 

  •              Product Brochure
                Self operated pressure regulating valve - English
                                                                        
  •  

  • Industrial Boiler Systems
    Used for precise micro-pressure control and steam pressure stabilization in industrial boiler networks. Self-operated design with internal presetting ensures reliable pressure regulation.

    Operating Conditions: Low control pressure, compact spring-loaded structure, sensitive response, self-regulated without external power.

  • Heating & Thermal Distribution Systems
    Maintains balanced pipeline pressure in hot water and steam networks. Ideal for district heating or process heating applications requiring stable downstream pressure.

    Operating Conditions: Internal setting for long-term stability, overload protection, micro-pressure regulation, high temperature tolerance.

  • Chemical Process Pipelines
    Controls micro-pressure in chemical reactors, pipelines, or liquid transfer systems. High sensitivity allows precise regulation for corrosive or specialty chemicals.

    Operating Conditions: Corrosive and reactive fluids, low friction no-packing design, precise diaphragm and lever thrust amplification.

  • Natural Gas & Fuel Gas Networks
    Ensures stable downstream pressure for gas distribution, micro-pressure regulation at pump or pipeline outlets. Self-operated internal setting simplifies field adjustments.

    Operating Conditions: Flammable gases, fast-acting diaphragm control, 360° actuator rotation for flexible installation, minimal external leakage.

  • Water Treatment & Circulation Systems
    Stabilizes pressure in pump outlets or water pipelines. Provides smooth, accurate micro-pressure control for clean water or wastewater circulation.

    Operating Conditions: Variable flow rates, self-operated internal adjustment, overload protection, corrosion-resistant construction for reliable operation.

  • Industrial Gas Systems
    Applied for precise pressure control of nitrogen, compressed air, or other industrial gases. Maintains consistent micro-pressure for equipment protection.<b
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