Description
Clamping system is designed for fast mounting, clamping and testing of pressure safety valves according to common international standards. To fix the tested valve on the system operator should turn the control handle for simultaneous moving of three claws towards the valve body.
For fast and easy clamping and sealing of the tested valve, test bench is equipped with hydraulic cylinder that is operated from control station or by using foot pedal, located directly besides the bench. Multi-table installed on the hydraulic cylinder rod allows to test most of standards pressure safety valves with RF & RTJ types of flange.
Clamping system has enlarged inner bore of pipes (20 mm) and high pressure hoses to increase air amount released during PSV opening for accurate set point determination and smooth spool reseating without any damage to sealing surfaces. Special coating and elements of stainless steel are used to provide stable operation both in moderate and tropical types of climate.

Types of tested valves
- RF flanged pressure safety valves DN 10 – 400 (NPS 3/8 – 16) as per ASME B16.5
- RTJ flanged pressure safety valves DN 10 – 400 (NPS 3/8 – 16) as per ASME B16.5
Technical parameters
Valve inlet size | Maximum test pressure, bar | |
DN (NPS) | Liquid test | Gas test |
10 (3/8) | 400 | 400 |
15 (½) | 400 | 400 |
20 (¾) | 400 | 400 |
25 (1) | 400 | 400 |
32 (1 ¼) | 400 | 400 |
40 (1 ½) | 400 | 400 |
50 (2) | 400 | 400 |
65 (2 ½) | 400 | 400 |
80 (3) | 400 | 400 |
100 (4) | 400 | 400 |
125 (5) | 250 | 250 |
150 (6) | 190 | 190 |
200 (8) | 105 | 105 |
250 (10) | 70 | 70 |
300 (12) | 45 | 45 |
350 (14) | 35 | 35 |
400 (16) | 25 | 25 |
- Test medium: For gas test – air / nitrogen
- Maximum clamping force, tons: 40
- Diameter of the clamped flange (min-max), mm: 90 – 580
- Clamped flange thickness (min-max): 14 – 115
- Built-in tank volume, l: 155
- Power supply: Not required
- Dimensions (LxWxH), mm, not exceeding: 1214 х 1123 х 990
- Weight, kg, not exceeding: 604
Sender
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THIEN QUANG EQUIPMENT AND TECHNOLOGY TRANSFER COMPANY LIMITED
Address: No 173D, 13 Group, Yen Nghia precinct, Ha Đong district, Ha Noi City
Phone : 043 357 0109 Email: info@thienquangett.com




