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SYJ-150 Valve Pressure Test Bench — DN15 to DN150, up to 40 MPa
The SYJ-150 is a compact valve pressure test bench for small and medium valves from DN15 to DN150, including pump bodies, butterfly valves and gate valves. Test pressure is adjustable from 0 to 40 MPa with a 30-ton clamping force, and the standard sealing plates cover flange diameters from 78 to 350 mm.
At a glance
| Model | SYJ-150 |
|---|---|
| Valve size range | DN15 – DN150 |
| Test pressure | 0 – 40 MPa |
| Clamping force | 30 ton |
| Flange diameter | Ø78 – 350 mm |
How it works
A single operator loads the valve or pump body between the plates and clamps it with the 30-ton cylinder; the test pressure is then set on the panel and held for the time you specify. The working height is low enough to load by hand for the smaller sizes, which keeps the cycle short.
High pressure in a small package is the point of this model: DN15 to DN150 valves often have to be tested at pressures well above their nominal rating, and a compact bench that reaches 40 MPa covers that without the floor space and cost of a large frame.
Pump bodies are tested on the same plates, which is why the model is common in workshops that serve both the valve and the pump trade.
Test capability
- Strength (shell) test up to 40 MPa
- Seat leakage test on butterfly and gate valves
- Pump body pressure testing on the same sealing plates
- Flange diameter coverage from Ø78 to Ø350 mm
- Adjustable hold time and pressure ramp
Who it is for
Valve repair workshops, pump manufacturers and pump repair shops, and small foundries that need a compact bench for DN15 – DN150 bodies at high test pressure.
Full specification
| Model | SYJ-150 |
|---|---|
| Valve size range | DN15 – DN150 |
| Valve types | Pump bodies, butterfly valves, gate valves |
| Test pressure | 0 – 40 MPa, adjustable |
| Clamping force | 30 ton |
| Flange diameter | Ø78 – 350 mm |
| Power supply | 380 V / 50 Hz, 3 phase |
| Origin | China |
Specifications are shown for the standard configuration. Size range, clamping force, control level (manual / PLC / fully automatic) and voltage can be adapted to your workshop — tell us what you test and we will confirm the exact configuration in writing.
What is included with the machine
English manual and wiring diagram, one set of sealing plates for the ordered flange range, and spare sealing elements.
Because the bench is usually a single-operator machine, commissioning is short: the pressure calibration and the hold-time settings are done in one video call.
Frequently asked questions
Can the SYJ-150 test valves larger than DN150?
Not as standard — the clamping force and plate size are matched to DN15 – DN150. For DN50 – DN300 see the ZSYJ-300A; for DN350 – DN600 see the SYJ-600M.
Does 40 MPa cover the strength test of a PN16 or PN25 valve?
Yes. The usual strength test is 1.5 times the nominal pressure, so PN25 requires about 3.8 MPa. The 40 MPa ceiling exists for high-pressure small-bore valves and for pump bodies that are tested well above their working pressure.
Is it manual or PLC controlled?
Both versions are available. Tell us which you prefer when you enquire — the manual version costs less, the PLC version logs the pressure curve automatically.
What about the price?
Price depends on the control level and the flange range you need. Send your valve types and sizes for a written quotation within 12 working hours.
Related models
Send your valve type, size range (DN) and required test pressure. We reply within 12 working hours with a model recommendation, datasheet and price.