Lightweight Horizontal Hydraulic Top Pressure Valve Test Bench

The Lightweight Horizontal Hydraulic Top Pressure Valve Test Bench supports both high-pressure water and low-pressure air as test media, covering 1.5 times nominal pressure hydrostatic shell test, 1.1 times nominal pressure high-pressure water seal test, and 4 to 7 bar low-pressure air tightness test. The integrated hydraulic system offers adjustable clamping force, suitable for various valve specifications from DN100 to DN600, with maximum peak force up to 137 tons. It complies with international valve testing and inspection standards and is widely used for factory outgoing QC inspection, FAT in valve manufacturers, and third-party testing agencies.

Lightweight Horizontal Hydraulic Top Pressure Valve Test Bench, is designed to test straight-through flanged, welded, and threaded end connections for ball valves, gate valves, globe valves, check valves, and other industrial valves.

The clamping method uses an upper hydraulic cylinder to directly drive the sealing plate against the valve end face, achieving axial end-face sealing. The bottom clamping force is adjustable, exerting minimal external force on the valve body. Sealing between the valve and blind plate can be either end-face sealing or tapered sealing, allowing direct visual inspection of leakage points for rapid assessment of sealing integrity. Test media include water (for shell strength and high-pressure sealing tests) and 4 to 7 bar low-pressure gas (air or nitrogen, for pneumatic tightness tests). The bench completes three main 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. The testing range covers DN100 to DN600 (see pressure test range table for details). The top pressure cylinder is Ø250 mm, sealing plate diameter ranges from 400 to 1400 mm, internal tie-rod spacing is 950 mm, and maximum peak clamping force is 137 tons.

In summary, this Lightweight Horizontal Hydraulic Top Pressure Valve Test Bench offers a modular and lightweight design, compact structure, ergonomic operation, and easy maintenance. It is an ideal solution for valve manufacturers, oil and gas industry, mining and metallurgy, power plants, chemical and petrochemical industry, MRO workshops, IQC in large industrial end-users, and third-party testing agencies.

Product Features

1.Modular and lightweight design, compact structure, ergonomic operation, and easy maintenance and relocation.

2.Upper hydraulic cylinder directly drives the sealing plate for reliable axial sealing, avoiding lateral forces that could damage the valve.

3.Powerful hydraulic system with stepless adjustable clamping pressure according to the valve test pressure rating; maximum hydraulic boost pressure up to 31.5 MPa.

4.Hydraulic water supply pump unit equipped with two pressure ranges (micro-pressure and medium/high pressure), covering a supply pressure range of 0.4 – 48.0 MPa to suit various nominal pressure test requirements.

5.Test water can be recycled, providing an economical and environmentally friendly solution that reduces long-term operating costs.

6.Optional PLC touchscreen control system for automatic test pressure control, real‑time data acquisition, historical data storage, and test report printing, meeting intelligent quality management requirements.

7.Supports low-pressure pneumatic leak testing to ensure valve safety and reliability under gas service conditions.

Applications

● FAT

● Oil & Gas Industry

● Mining & Metallurgy

● Power Plants

● Chemical & Petrochemical Industry

● MRO Workshops

● IQC in Large Industrial End-Users

● Third-Party Testing Agencies

Technical Specifications Table

Stress Test Scope Table（MPa）

FAQ

1.What is the test diameter range of this bench?

It covers DN100 to DN600.

2.What types of valves can be tested?

It is suitable for flanged, welded, and threaded ball valves, gate valves, globe valves, check valves, and other industrial valves.

3.What test media are supported?

Water for hydrostatic and sealing tests, and 4 to 7 bar low-pressure gas (air or nitrogen) for pneumatic tightness tests.

4.What are the three main test items?

Hydrostatic shell test at 1.5 times nominal pressure, high-pressure water seal test at 1.1 times nominal pressure, and low-pressure pneumatic tightness test at 4 to 7 bar.

5.How is the valve clamped and sealed?

An upper hydraulic cylinder directly drives the sealing plate against the valve end face, achieving axial sealing with minimal external force. Sealing can be end-face or tapered, enabling easy visual leak detection.

6.What is the maximum peak clamping force?

The maximum peak clamping force is 137 tons.

7.What are the specifications of the top pressure cylinder and sealing plate?

The top pressure cylinder is Ø250 mm, and the sealing plate diameter ranges from 400 to 1400 mm.

8.What is the internal distance between tie rods?

It is 950 mm, which facilitates loading and unloading of larger valves.

9.What industries and applications is this bench suitable for?

It is widely used in valve manufacturing factories for outgoing QC and FAT, oil and gas, mining, metallurgy, power plants, chemical and petrochemical plants, MRO workshops, large industrial end-user incoming inspection, and third-party testing agencies.

10.Does it support automated control and data management?

Yes, an optional PLC touchscreen control system is available for automatic test pressure control, real-time data acquisition, historical data storage, and test report printing, meeting intelligent quality management requirements.