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Single-acting Pinch Valve Manufacturers

Fail-Safe Single-acting Pinch Valves (Spring Return)

Safety is paramount in automated processing, and our Single-acting Pinch Valves provide the ultimate fail-safe solution. Designed with an internal spring-return mechanism, these valves automatically move to a pre-set position (Fail-Open or Fail-Close) upon loss of air pressure. This makes them indispensable for hazardous media transport where uncontrolled flow during a power or air failure could lead to system damage or environmental risks.

Featured Products

  • Closed Body Pinch Valve

    Closed Body Pinch Valve

    The operating principle of the FNC® enclosed pinch valve is straightforward. When in the open position, the valve provides a full-bore passage, allowing unrestricted flow of the me...

  • Standard Air Operated Pinch Valves

    Standard Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Large Diameter Pinch Valves

    Large Diameter Pinch Valves

    Compared to ordinary pinch valves, large-diameter pinch valves have much higher production requirements. As the “core component” of the pinch valve, the rubber valve sleeve demands...

  • Open Body Pinch Valves

    Open Body Pinch Valves

    The operating principle of the FNC® enclosed pinch valve is straightforward. When in the open position, the valve provides a full-bore passage, allowing unrestricted flow of the me...

  • Mini Air Operated Pinch Valves

    Mini Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Split-Body Air Operated Pinch Valves

    Split-Body Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • Large Diameter Air Operated Pinch Valves

    Large Diameter Air Operated Pinch Valves

    Air Operated  pinch valves offer a unique and cost-effective solution for fluid control problems. The secret lies in the rubber valve sleeve - the only flow-through part of the pne...

  • KGV-D knife gate valves

    KGV-D knife gate valves

    The FNC Slurry Knife Gate Valve is compatible with a variety of actuators. Its main body is constructed from materials such as cast iron, cast steel, and stainless steel. The gate ...

  • KGV-A knife gate valves

    KGV-A knife gate valves

    The FNC Slurry Knife Gate Valve is compatible with a variety of actuators. Its main body is constructed from materials such as cast iron, cast steel, and stainless steel. The gate ...

Technical Specifications

Parameter Details
Action Type Normally Open (NO) / Normally Closed (NC)
Spring Material High-Strength Alloy Steel (Epoxy Coated)
Air Connection 1/4" NPT / G1/4
Max Line Pressure 6 Bar (Standard Spring Load)
Sleeve Life Tested for 50,000+ fail-safe cycles

Primary Applications

  • Emergency Shut-off Systems
  • Hazardous Chemical Transport
  • Automated Batching & Dosing
  • Environmental Protection Lines

Core Advantages

  • Inherent Safety: Automatic mechanical reset without requiring electricity or air.
  • Simplified Control: Requires only a 3/2-way solenoid valve for operation.
  • Reliable Sealing: Factory-calibrated spring tension ensures consistent shut-off force.

Logistics & Payment

Payment via T/T or Credit Card. These valves are calibrated for spring tension before being packed in export-standard plywood boxes. We offer fast-track 7-day shipping for standard NC/NO configurations.

Frequently Asked Questions

  • Can I change a Fail-Open valve to Fail-Closed in the field?
  • No, the internal spring configuration is factory-set. Please specify your safety requirement (NC or NO) at the time of order.
  • Does the spring lose tension over time?
  • Our springs are heat-treated and pre-stressed to ensure less than 3% tension loss over 10 years of standard use.

Fail-Safe Selection Guide

When choosing a single-acting pinch valve, consider the Total Air Volume required to overcome spring resistance. Because the spring is always pushing back, these valves require slightly higher pilot air pressure than double-acting versions. Ensure your air compressor can maintain at least 5.5 bar to keep the valve fully energized.

Note: Specifications are subject to change. For specific torque values and chemical compatibility, please refer to the technical data sheet provided with your order.

Anhui Fengchi Pump Valve Manufacturing
Co., Ltd.

Anhui Fengchi Pump Valve Manufacturing Co., Ltd. is a national High-Tech Enterprise specializing in premium fluid control solutions for harsh industrial environments. We are a leading Custom Single-acting Pinch Valve manufacturer and Single-acting Pinch Valve supplier, designed specifically to handle abrasive, corrosive, and high-density media.

Our facility is equipped with large-scale vulcanization and rubber refining technology, allowing us to maintain full control over the quality of our proprietary wear-resistant sleeves. as Single-acting Pinch Valve factory, Fengchi holds numerous patents and has successfully passed ISO9001:2015, ISO14000, CE, and RoHS international certifications.

Trusted by major mining and chemical plants worldwide, our products serve as the ultimate cost-effective alternative to conventional valves. We don't just sell products; we provide customized fluid control solutions to minimize downtime and maximize operational efficiency for our global partners.

Anhui Fengchi Pump Valve Manufacturing Co., Ltd.

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