DN400 Horizontal Screw Axial Clamping Valve Test Bench

Precision screw mechanism provides stable and uniform clamping force with less hydraulic leakage risk compared to hydraulic machines.Equipped with high precision pressure gauges and electric control pressure holding system.Compliant with GB/T 13927 2022 test standard.Widely used in valve manufacturing plants for factory outgoing QC and repair workshops.

Detailed Product Description Brief Points

1 DN400 Horizontal Screw Axial Clamping Valve Test Bench is suitable for flanged, welded, and threaded end connections including ball valves, gate valves, globe valves, check valves, and other industrial valves.

2 Clamping method: three phase motor drives mechanical nut and screw to press sealing plate against valve end face, achieving stable axial end face sealing with minimal external force on the valve body.

3 Sealing between valve and sealing plate: end face sealing with O ring or flat gasket, allowing direct visual inspection of leakage points for rapid assessment of sealing integrity.

4 DN400 Horizontal Screw Axial Clamping Valve Test Bench supports test media including water for shell strength and high pressure sealing tests, and 4 to 7 bar low pressure gas air or nitrogen for pneumatic tightness tests.

5 Completed test items: 1.5 times nominal pressure hydrostatic shell strength test, 1.1 times nominal pressure high pressure water seal test, and 4 to 7 bar low pressure pneumatic tightness test.

6 Test diameter range: DN50 to DN400, with flexible stroke adjustment to accommodate various valve body lengths.

7 Clamping mechanism: precision screw and nut system driven by three phase motor, providing uniform and stable clamping force.

8 Pressure measurement: equipped with high precision pressure gauges and electric control pressure holding system for accurate and stable pressure maintenance during testing.

9 Core advantage: compared to pure hydraulic machines, screw structure maintains constant clamping force with reduced hydraulic leakage risk, making it ideal for long term repetitive medium pressure valve quality inspection.

Product Features and Applications

Features brief points

1.Mechanical screw clamping structure provides stable and uniform clamping force with less hydraulic leakage risk

2.Three phase motor driven nut and screw system for reliable and maintenance friendly operation

3.Wide adjustable test range covering DN50 to DN400 for various valve specifications

4.Flexible stroke adjustment accommodates different valve body lengths

5.High precision pressure gauges for accurate pressure monitoring

6.Electric control pressure holding system ensures stable long time pressure maintenance

7.Supports both water and air test media for comprehensive testing capability

8.Compliant with GB/T 13927 2022 international test standards

9.Lower maintenance cost compared to hydraulic systems

10.Ideal for long term repetitive medium pressure valve quality inspection

Applications brief points

● Valve manufacturers for factory outgoing quality inspection FAT

● Repair and maintenance workshops for valve overhaul MRO

● Power plants for valve maintenance

● Chemical and petrochemical industries

● Mining and metallurgy sectors

● Large industrial end users for incoming quality control IQC

● Third party testing and repair agencies

● District heating networks and water supply systems

Technical Data Table

FAQ Brief Points

1 Are you a trading company or manufacturer?

We are Wenzhou Yufeng Valve Machinery Manufacturer, a direct factory specializing in R&D and production of valve testing and grinding equipment.

2 What is your MOQ for this test bench?

MOQ is just 1 set, welcome small trial orders and bulk procurement.

3 What quality certifications do you have?

Equipment manufactured under strict quality control, CE and ISO certifications available upon request.

4 Why choose screw clamping over hydraulic clamping?

Screw mechanism maintains constant clamping force with reduced hydraulic leakage risk, lower maintenance cost, and is ideal for long term repetitive medium pressure valve quality inspection.

5 What test standards does this machine comply with?

Compliant with GB/T 13927 2022, and can also meet API and ISO standards upon request.

6 Do you support OEM ODM customized services?

Yes, we customize test diameter range, stroke, clamping force, and control systems based on specific requirements.

7 What test media does it support?

Supports both water for hydrostatic tests and low pressure air or nitrogen for pneumatic tightness tests.

8 What is the standard lead time?

Standard configuration typically 21 to 30 days, customized models 30 to 35 days.

9 What payment terms do you accept?

Usually T/T with 30 percent deposit and 70 percent balance before shipment, L/C at sight also acceptable.

10 What information should I provide for quotation?

Please share valve type, diameter range DN, nominal pressure PN, valve connection type flanged or welded or threaded, and production volume requirements.