Plastic Valve Testing Equipments Factory

Plastic Valve Testing Equipments

Valves regulate flow, pressure, and direction in fluid systems. Testing plastic valves for leakage, actuation torque, and pressure endurance is vital for safe operation. Shijiazhuang Zhongshi Testing Machine Co., Ltd. engineers specialized valve test rigs that cover globe, ball, butterfly, check, and diaphragm valve designs.

Testing Capabilities

• Shell and Seat Leak Tests: Under static pressures up to 16 MPa, automated sequences check for external leakage (shell test) and internal leakage through closed seats, per ISO 5208 and API 598.

• Cycle Fatigue Testing: Actuation mechanisms run through thousands of open-close cycles at adjustable speeds, monitoring torque, response time, and wear on seals.

• Torque and Actuation Force Measurement: Precise load cells and rotary encoders record break-away and running torques for manual, electric, or pneumatic actuators.

• Hydraulic and Pneumatic Endurance: Valves are subjected to rapid pressure fluctuations and pulsation to detect fatigue cracks and seal degradation.

• Thermal and Chemical Exposure: Environmental chambers and immersion baths evaluate valve materials under hot fluids, solvents, and corrosive media, followed by performance testing.

Equipment Details

• Pressure Capacity: Up to 16 MPa with digital control to ±0.02 MPa

• Torque Resolution: 0.01 Nm; angle resolution 0.1°

• Cycle Rate: Up to 30 cycles per minute, programmable dwell times

• Temperature Range: –20 °C to 120 °C for fluid and ambient conditions

• Data Interface: Centralized software for cycle count, torque curves, leak-rate graphs, and customizable pass/fail criteria

Industry Applications

• Water Treatment Plants: Ensuring gate and butterfly valves provide tight shutoff under frequent operation

• Chemical Processing: Validating corrosion-resistant valves for aggressive media and temperature cycling

• Oil & Gas: Testing isolation valves and safety relief valves under high pressures and rapid actuation

• Food & Beverage: Confirming sanitary valve performance under CIP (clean-in-place) procedures and steam sanitization

Shijiazhuang Zhongshi Testing Machine Co., Ltd. offers full lifecycle services, including application consultancy, on-site commissioning, preventive maintenance, and accredited calibration, empowering manufacturing and testing facilities to maintain stringent valve quality standards.