The test bench can use bottled nitrogen or an external gas boosting system as the pressure source. The test pressure can be adjusted according to testing requirements, while the pressure-boosting process remains stable and controllable.
The standard system supports a maximum test diameter of DN400mm and a maximum test pressure of 100 MPa. Larger sizes and higher pressure ratings can be customized.
Key Features
1. Portable & Mobile Design
The compact mobile structure makes the test bench easy to:
- Move between different testing locations
- Transport by vehicle
- Carry for field testing
- Deploy at maintenance sites
- Use for on-site safety valve inspection
It is especially suitable for customers who require flexible and mobile testing solutions.
2. Multiple Clamping Options
The test bench can be configured with different clamping methods according to customer requirements.
Available options include:
- Pneumatic clamping
- Electric clamping
- Manual control
- Automatic control
The flexible configuration allows the equipment to accommodate different safety valve testing requirements.
3. Stable Pressure Boosting
The test bench can use:
- Bottled nitrogen
- Compressed gas
- External gas boosting system
- Clean water
The test pressure can be adjusted according to the required testing conditions.
The pressure-boosting process is stable, helping improve testing accuracy and safety.
4. Optional Dual-Gauge Configuration
A dual pressure gauge configuration can be selected according to customer requirements.
The pressure gauge connection adopts a manual quick-tightening structure, eliminating the need for a wrench during installation and removal.
This makes gauge replacement and daily operation faster and more convenient.
5. Customized Test Fixtures
Special test fixtures can be supplied according to the customer’s safety valve specifications and testing requirements.
Customized fixtures can help accommodate different:
- Valve sizes
- Valve connection types
- Testing methods
- Application requirements
6. Stainless Steel Pressure Components
All valves, pipe fittings and connectors are made of stainless steel.
This design provides:
- High pressure resistance
- Corrosion resistance
- Long service life
- Improved operational safety
- Compatibility with various testing media
The equipment is suitable for most common gas and liquid testing media.
Testing Media
The Portable Safety Valve Off-line Test Bench supports several testing media:
Nitrogen
Bottled nitrogen can be used for gas pressure testing of safety valves.
Compressed Air
Compressed air can be used as an economical testing medium for applicable safety valve testing applications.
Clean Water
Clean water can be used for liquid pressure testing.
Gas & Liquid Dual-Purpose Configuration
The equipment can also be designed and manufactured as a gas and liquid dual-purpose test bench according to customer requirements.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Portable Safety Valve Off-line Test Bench |
| Maximum Valve Diameter | DN400 mm |
| Larger Diameter | Customizable |
| Maximum Test Pressure | 100 MPa |
| Higher Pressure | Customizable |
| Pressure Measurement Accuracy | Class 0.4 Pressure Gauge |
| Higher Accuracy | Optional |
| Test Media | Nitrogen, Compressed Air, Clean Water |
| Gas & Liquid Dual-Purpose | Optional |
| Clamping Method | Pneumatic / Electric / Manual / Automatic |
| Pressure Gauge Configuration | Single / Dual Gauge Optional |
| Pressure Gauge Connection | Manual Quick-Tightening Type |
| Valves & Fittings | Stainless Steel |
| Test Fixtures | Customized According to Requirements |
Main Functions
| Function | Description |
|---|---|
| Safety Valve Pressure Testing | Tests safety valve pressure performance |
| Portable Testing | Suitable for mobile and on-site applications |
| Adjustable Pressure | Test pressure can be adjusted according to requirements |
| Pneumatic Clamping | Optional pneumatic clamping system |
| Electric Clamping | Optional electric clamping system |
| Manual Control | Manual operation available |
| Automatic Control | Automatic control available |
| Gas Testing | Nitrogen or compressed air testing |
| Liquid Testing | Clean water testing |
| Dual-Media Testing | Gas/liquid dual-purpose version available |
| Customized Fixtures | Test fixtures can be customized |
Application Range
The Portable Safety Valve Off-line Test Bench is suitable for testing and maintenance applications involving various safety valves.
Typical Applications
- Safety valve pressure testing
- Safety valve opening pressure testing
- Safety valve maintenance
- Safety valve inspection
- Valve repair workshops
- Pressure equipment inspection
- Industrial equipment maintenance
- On-site safety valve testing
Suitable Industries
- Oil & gas
- Petrochemical
- Chemical industry
- Power generation
- Boiler systems
- Pressure vessel inspection
- Industrial equipment maintenance
Advantages
Portable Design
Easy to transport and suitable for mobile testing applications.
Up to 100 MPa
The standard configuration supports test pressures up to 100 MPa, with higher pressure versions available for customization.
DN400 Valve Capacity
Suitable for safety valves up to DN400mm, with larger diameters available upon request.
Flexible Clamping
Pneumatic, electric, manual and automatic clamping configurations can be selected.
Multiple Test Media
Supports nitrogen, compressed air and clean water, with gas-liquid dual-purpose configurations available.
Stainless Steel Construction
Stainless steel valves, fittings and connectors provide excellent pressure resistance and durability.
Customized Testing Solutions
Different safety valves may require different test fixtures, pressure ranges and testing media.
Shandong Hengrong Automation Equipment can customize the Portable Safety Valve Off-line Test Bench according to customer requirements, including:
- Larger valve diameters
- Higher test pressures
- Customized test fixtures
- Gas testing systems
- Liquid testing systems
- Gas & liquid dual-purpose systems
- Pneumatic or electric clamping
- Higher-precision pressure measurement
Why Choose Hengrong?
Shandong Hengrong Automation Equipment specializes in the development and manufacture of pressure control and testing equipment.
The Portable Safety Valve Off-line Test Bench combines mobility, high-pressure testing, flexible clamping, stainless steel components and customized test fixtures into a practical solution for safety valve inspection and maintenance.
With a standard capacity of DN400mm and 100MPa, the system can also be customized for larger valves and higher-pressure applications.




