Shijiazhuang Zhongtai Pipe Technology Development Co., Ltd
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Product Description
A hydraulic tester is used to perform leaking and hydraulic pressure test on ERW or spiral welded pipes. The test involves sealing the two ends of the pipe, and filling the pipe with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure. Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss. Huaye hydraulic tester reaches API standard.
2. Differences between an ERW and spiral welded pipe tester
Longitudinal weld pipe hydraulic tester employs outside diameter’s sealing or sealing for big gaps; hydraulic tester for spiral welding pipes uses polyurethane to seal the pi[e end faces, and has the system to keep balance of oil and water.
Hydraulic System
The hydraulic oil in the tank through the motor drives the high-pressure pump into the oil flows through a check, high-pressure oil filters, differential pressure valve set, servo valves, into the oil cylinder. Computer control signals to the servo valve, the control, and direction of the servo valve opening to control the flow into the cylinder to achieve constant test force, constant displacement control. through the tubing, pressure tubing through, and the oil return valve to the tank.
Models of hydraulic tester for ERW Mill
| Model | Specification(mm) | Length(m) | Pressure(Mpa) | Capacity(Kw) | Area(estimaterM) |
| ZFSY-100 | Φ50~ Φ114 | 6~12 | ≤50 | 65 | 5×12 |
| ZFSY-160 | Φ60~ Φ168 | 6~12 | ≤50 | 65 | 5×12 |
| ZFSY-220 | Φ89~ Φ219 | 6~12 | ≤50 | 75 | 5×12 |
| ZFSY-350 | Φ140~Φ355 | 6~12 | ≤70 | 85 | 6×20 |
| ZFSY-400 | Φ168~Φ426 | 8~12 | ≤70 | 65 | 6×22 |
| ZFSY-500 | Φ219~Φ508 | 8~12 | ≤70 | 85 | 6×22 |
| ZFSY-600 | Φ219~Φ610 | 8~12 | ≤70 | 100 | 6×22 |
Models of hydraulic tester for Spiral pipe welded mill
| Model | Specification(mm) | Length(m) | Pressure(Mpa) | Capacity(Kw) | Area(estimaterM) |
| LHSY-400 | Φ219~Φ426 | 6~12 | ≤50 | 65 | 5×12 |
| LHSY-600 | Φ219~Φ630 | 6~12 | ≤50 | 65 | 5×12 |
| LHSY-800 | Φ325~Φ820 | 6~12 | ≤50 | 75 | 5×12 |
| LHSY-1000 | Φ426~Φ1020 | 6~12 | ≤42 | 85 | 4×20 |
| LHSY-1400 | Φ508~Φ1420 | 8~12 | ≤21 | 65 | 4×22 |
| LHSY-1800 | Φ630~Φ1820 | 8~12 | ≤21 | 85 | 4×22 |
| LHSY-2400 | Φ720~Φ2400 | 8~12 | ≤21 | 100 | 4×22 |
| LHSY-3000 | Φ820~Φ3000 | 8~12 | ≤21 | 120 | 4×25 |
| LHSY-3500 | Φ1020~Φ3500 | 8~12 | ≤21 | 160 | 6×30 |
Q: Are you a manufacturer?
A: Yes, we are a manufacturer. We have 4 factories ( Machining, Assembling, Heat treatment, and Moulding ). We also have our own R&D department. Welcome to visit us.
Q: What kind of payment term do you do?
A: We do T/T and L/C.
Q: What info do you need before giving me the price and proposal?
A: Since we design individual machines based on our customer's requirements, we need your desired products' basic dimensions, including all the pipe diameter(or tube length), thickness range, usage, raw material steel grade, coil weight, and degree of automation.
Q: What should I do if I just start a new business?
A: Contact us immediately, we provide a free consultant for pre-sales service. Also, we can help you solve the raw material (steel coil) purchase, worker training, international market price, and more.
Q: How do you do QA?
A: We have a special team to do strict QA, this is one of our strengths:
(1)Every gearbox will be tested for 8 hours with oil inside to guarantee there is no leak.