Product Overview

The self-acting micro-pressure regulator valve is a precision-engineered solution designed for ultra-fine pressure control in low-pressure systems. It utilizes the energy of the process fluid to automatically regulate and maintain set pressure levels with superior accuracy, making it ideal for laboratory equipment, gas analyzers and precision instrumentation applications. Its compact design and self-actuating mechanism ensure reliable performance without the need for an external power supply.

Applicable working conditions

Laboratory equipment: precise pressure control in gas chromatography and mass spectrometry.

Gas distribution: micro-pressure regulation in analytical gas lines and calibration systems.

Medical devices: pressure management in respiratory equipment and anesthesia machines.

Industrial instrumentation: low pressure air and gas control in precision manufacturing.

Main characteristics

Self-acting operating mechanism
No external power is required: operation utilizes the energy of the process fluid.
Direct-acting design: simple and reliable with very few moving parts.
Set pressure range: 0.5-50 kPa (0.07-7.25 psi), adjustable with a trimmer spring.

Valve Design
Compact size: miniature design for integration into tight spaces.
High sealing performance: ANSI Class IV (standard) / Class VI (optional).
Pressure range: For inlet pressures up to 100 kPa (14.5 psi).

Flow Rate Characteristics
Valve insert options: linear or equal percentage flow characteristics.
Flow coefficient (Cv): 0.01-0.5 (DN3-DN10).
Customizable flow curves: tailored to specific process requirements.

Materials and Durability
Body material: 316L stainless steel (CF8M), brass, or PTFE-lined body.
Valve inner member material: Stellite 6 alloy, tungsten carbide or ceramic coating.
Seals: PTFE, Viton or EPDM (-20°C to 120°C).

compatibility
Process fluids: air, nitrogen, argon and other non-corrosive gases.
Accessories: pressure gauge, trim knob and in-line filter.

Product Advantages

Ultra-fine control: maintains set pressure within ±1% accuracy.

Energy saving: No external power supply is required, reducing operating costs.

Compact design: ideal for integration into small systems.

Low Maintenance: Simple design with minimal moving parts.

Comparison with Pilot Operated Valves

Selection Guide

High precision: Select ceramic-coated valve internals for ultra-fine control.

Corrosion-resistant media: Choose 316L body and PTFE seals.

High Cycle: Rotary seat design with over 20,000 cycles.

Cleanroom applications: Choose electropolished surfaces (Ra <0.4μm).