Dongguan Socket Switch Shell Plastic Injection Socket Case

Q: What we can provide?

 

A:We specializes in mold-manufacturing (especially Injectin Mold) and CNC machining (Precision Metal Machining Parts).

 

1) In the mold manufacturing field,Yixun can provide

1)High quality precision mold and injection mold

2)Complete product in mass production

3)Mould applicable to 80T-550T maching

4)Mold precision:+/-0.02 mm

5)All our products are taken by Robot.

 

Q: How can we control our QUALITY?

A: Standard Production and Certificate,

1)RoHS and ISO standard

2:)ISO9001 2008

 

Besides, All the staff have to received a rigorous pre-job training. all products must be debugged repeatedly and be tesed before shippment.

Q: What we can provide?

 

A:We specializes in mold-manufacturing (especially Injectin Mold) and CNC machining (Precision Metal Machining Parts).

 

1) In the mold manufacturing field,Yixun can provide

1)High quality precision mold and injection mold

2)Complete product in mass production

3)Mould applicable to 80T-550T maching

4)Mold precision:+/-0.02 mm

5)All our products are taken by Robot.

 

Q: How can we control our QUALITY?

A: Standard Production and Certificate,

1)RoHS and ISO standard

2:)ISO9001 2008

 

Besides, All the staff have to received a rigorous pre-job training. all products must be debugged repeatedly and be tesed before shippment.

By-pass assembly has two positions; by-pass and close. It is in by-pass position during trip operation, and circulates mud fluid in the drill string into the annular space by-passing the idle motor, so that no mud may spray out onto the platform during the trip operation. When mud flow rate and pressure reach the setting value, the valve stem moves down and closes the valve. Meanwhile, mud stream flows through the motor, and converts the pressure energy into mechanical energy. As mud flow rate is too low, or mud pump stops, and as the pressure produced is not enough to overcome the spring force and the static friction force, the spring presses the stem upward, and by-pass is in open position. In general, the cross-over subs are used in deep well, large angle well, horizontal well or when hollow rotor is selected.

By-Pass Assembly And Parts

By-Pass Assembly And Parts,By-Pass Valve Assembly,Automatic Bypass Valve,Pressure Bypass Valve

Weifang Shengde Petroleum Machinery Manufacturing Co., Ltd. , http://www.sdpetromachine.com