Second, the tubing under working pressure to avoid bending. The oil tank connected with oil pump and jack should be kept clean. When not in use, it should be blocked with screws to prevent silt from entering. The grease nipple exposed by oil pumps and jacks should be sealed with nuts to prevent dust and debris from entering the machine. After daily use, wipe the oil pump, remove oil grease on the copper wire cloth.
Third, the pump should not work under overload, safety valve pressure to be adjusted according to equipment rated pressure, non-arbitrarily adjusted.
Fourth, the ground power supply, the casing must be connected to the ground, after checking insulation of the line, before commissioning.
Five, high-pressure pump operation, the oil control valve should be loosen, and then start the pump until the normal operation of empty load, and then close the return valve, gradually screw into the valve stem, increase the load and pay attention to the pressure Table pointer is normal.
Sixth, when the pump is stopped, the valve should first oil return slowly release until the pressure gauge slowly back to zero only after unloading pipe union nut opening jack. It is forbidden to change the tubing or pressure gauge during load.
Seven, with the dual-acting jack pump, dual-use oil pump to both oil is appropriate.
Eight, oil-resistant rubber tube must be high pressure, the working pressure shall not exceed the rated oil pump or the actual work of the maximum hydraulic pressure. The tubing length should not be less than 2.5m. When an oil pump drives two jacks, the tubing specifications should be the same.
We can produce the A/SA106B/C steel pipes according to the ASME SA106 and ASTM A106 standards, and we have been sold about 250000 MT the oversea markets at recent 10 years. YC has been granted a number of approval certificate by international institutions, such as Nuclear pipe certificate, 914mm Cylinder certificate, API monogram and certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC, approvals from Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL, Bureau Veritas, and permit of exporting to Europe as PED 2014/68/EU and AD 2000 certificates for pressure pipes, CPD (Construction Products Directive), etc.
Chengde have been working on the research.manufacture and sale of seamless pipe about 30 years, and the advantage of core competence is more prominent by integrate in technical.management and market with PCC.
1 The Piercing and rolling technology of Chengde possesses a number of patents in designing and manufacturing the equipment. The production is efficient and flexible, and the quality is stable.
2 The material grade is complete, and the size range is wide (three produce line can manufacture all non-standard sizes). The Minimum Order Quantity (MOQ) as low as ONE piece, and the date of delivery is short with excellent cost performance.
3 The sales and service team is professional and localize.
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YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com