Structured Manufacturing Data (2026)

Gas Pressure Regulator

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Gas Pressure Regulator used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Gas Pressure Regulator is characterized by the integration of Diaphragm and Adjustment Spring. In industrial production environments, manufacturers listed on CNFX commonly emphasize Brass construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A device that maintains a constant output pressure of gas regardless of variations in input pressure or flow demand.

Product Specifications

Technical details and manufacturing context for Gas Pressure Regulator

Definition
A critical component within the Assist Gas System that precisely controls and stabilizes gas pressure to ensure consistent performance of downstream equipment and processes by reducing high-pressure gas from a supply source to a safe, usable lower pressure.
Working Principle
Operates by balancing the force exerted by the gas pressure on a diaphragm or piston against the force of an adjustable spring. When output pressure drops, the spring force opens the valve to allow more gas flow; when pressure rises, the diaphragm/piston moves to close the valve, maintaining the set pressure.
Common Materials
Brass, Stainless Steel, Buna-N (Nitrile) Rubber
Technical Parameters
  • Inlet/Outlet connection size (e.g., 1/4" NPT, 6mm) (mm) Customizable
Components / BOM
  • Diaphragm Part
    Senses outlet pressure changes and transmits force to the valve stem
    Material: Buna-N Rubber
  • Adjustment Spring Part
    Provides adjustable force to set the desired outlet pressure
    Material: Stainless Steel
  • Valve Seat Part
    Forms a seal with the valve poppet to control gas flow
    Material: PTFE (Teflon) or Brass
  • Poppet/Valve
    Moves to open or close the gas flow path based on pressure signals
    Material: Brass or Stainless Steel
  • Pressure Gauge Ports Part
    Connections for monitoring inlet and outlet pressures
    Material: Brass

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gas Pressure Regulator.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Inlet: Up to 3000 psi, Outlet: 0.5-150 psi
flow rate: 0.1-500 SCFM
other spec: Accuracy: ±5% of setpoint, Response Time: <1 second
temperature: -40°C to 120°C
Media Compatibility
✓ Natural Gas ✓ Propane ✓ Compressed Air
Unsuitable: Corrosive gases like chlorine or hydrogen sulfide
Sizing Data Required
  • Maximum Inlet Pressure (psi)
  • Required Outlet Pressure (psi)
  • Maximum Flow Rate (SCFM)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Diaphragm fatigue or rupture
Cause: Cyclic pressure fluctuations exceeding design limits, material degradation from chemical exposure or temperature extremes, or improper sizing leading to excessive flexing.
Seat wear or leakage
Cause: Contaminant erosion (particulates in gas stream), cavitation from rapid pressure drops, or mechanical wear from misalignment or over-tightening during installation.
Maintenance Indicators
  • Audible hissing or whistling indicating gas leakage past the seat or seals
  • Pressure gauge fluctuations or inability to maintain setpoint despite adjustments
Engineering Tips
  • Install upstream filtration (e.g., particulate filters) and ensure gas quality meets regulator specifications to prevent contaminant-induced wear.
  • Implement regular bench testing with calibrated equipment to verify setpoint accuracy and reseat leakage rates before field failures occur.

Compliance & Manufacturing Standards

Reference Standards
ISO 23551-1: Gas pressure regulators for inlet pressures up to 100 bar ANSI Z21.18/CSA 6.3: Gas Appliance Pressure Regulators DIN EN 334: Gas pressure regulators for inlet pressures up to 100 bar
Manufacturing Precision
  • Seat Leakage: ≤ 0.5 cm³/min at 1.5x rated pressure
  • Outlet Pressure Stability: ±2.5% of set point across flow range
Quality Inspection
  • Hydrostatic Pressure Test: 1.5x maximum working pressure for 3 minutes
  • Functional Flow Test: Verify regulation accuracy across specified flow range

Factories Producing Gas Pressure Regulator

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are used in this gas pressure regulator and why?

This regulator uses brass for corrosion-resistant body construction, stainless steel for durable internal components, and Buna-N (Nitrile) rubber for the diaphragm, providing excellent gas compatibility and sealing performance in industrial environments.

How does the adjustment spring work in this gas pressure regulator?

The adjustment spring applies force to the diaphragm, which controls the poppet/valve position. By adjusting the spring tension, you set the desired output pressure, allowing precise pressure regulation for different machinery requirements.

What maintenance is required for this industrial gas regulator?

Regular inspection of the diaphragm and valve seat for wear, checking pressure gauge accuracy, and ensuring clean gas supply to prevent contamination. The Buna-N rubber diaphragm may need replacement over time depending on operating conditions.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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