INDUSTRY COMPONENT

Pressure Regulator Diaphragm

Flexible diaphragm in precision air filter/regulator that maintains constant downstream pressure by balancing forces.

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Component Specifications

Definition
A critical elastomeric or composite membrane within precision air filter/regulator assemblies that responds to pressure differentials to modulate airflow, ensuring stable output pressure regardless of input fluctuations or downstream demand changes in industrial pneumatic systems.
Working Principle
Operates on force-balance principle: upstream pressure acts on one side while spring force and downstream pressure act on opposite side; diaphragm flexes to adjust valve opening, maintaining preset downstream pressure by compensating for variations.
Materials
Typically nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), fluorocarbon (FKM/Viton), or silicone with fabric reinforcement; selected based on temperature range (-40°C to 120°C), media compatibility (air, oils), and durability requirements.
Technical Parameters
  • Diameter 25-100 mm
  • Thickness 0.5-3.0 mm
  • Hysteresis <1% of full scale
  • Response Time <100 ms
  • Pressure Range 0-150 psi
  • Temperature Range -40°C to 120°C
Standards
ISO 6952, DIN 3852

Industry Taxonomies & Aliases

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

pressure regulator diaphragm pneumatic diaphragm air regulator component industrial diaphragm pressure control membrane FKM diaphragm EPDM regulator part Pressure Regulator Diaphragm in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Precision Air Filter/Regulator

A dual-function component that filters contaminants from compressed air and precisely regulates air pressure for air bearing systems.

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Engineering Analysis

Risks & Mitigation
  • Pressure spikes from diaphragm rupture
  • Contamination due to material degradation
  • Reduced accuracy from fatigue or creep
FMEA Triads
Trigger: Material aging from thermal cycling or chemical exposure
Failure: Cracks or tears leading to pressure loss or inaccurate regulation
Mitigation: Use compatible materials per ISO 6952; implement preventive replacement schedules
Trigger: Particulate ingress from inadequate filtration
Failure: Abrasion and premature wear
Mitigation: Install 5-micron pre-filters; maintain filter elements regularly

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±1% of set pressure across 10-100% flow range
Test Method
ISO 6952: Pressure regulator flow characteristics testing with calibrated gauges and flow meters

Buyer Feedback

★★★★☆ 4.5 / 5.0 (38 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Pressure Regulator Diaphragm arrived with full certification."

"Great transparency on the Pressure Regulator Diaphragm components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Pressure Regulator Diaphragm we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

How often should a pressure regulator diaphragm be replaced?

Typically every 2-5 years depending on operating conditions; inspect annually for cracks, stiffness, or deformation from cyclic fatigue or chemical exposure.

What causes diaphragm failure in regulators?

Common causes include material degradation from ozone/UV exposure, chemical incompatibility, over-pressure events, excessive temperature, or particulate abrasion from unfiltered air.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Pressure Ports Pressure Relief Port