Member Since July 4, 2012
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Recent Activity by xxdqzz

Answered: The advantages, disadvantages and characteristics ...

Disadvantages: 1 more expensive. Custom, the market is less, so your. 2, sink to the bottom, dead ends, such as defects in the fixed packing, but suspended filler prone to accumulation. Great loss ...

Asked: How does a Inline-injection Pumps Work?

How does a Inline-injection Pumps Work?
  • Posted 11 months ago

Answered: How to carry on the oil equipment based?

The theme is very big, is not a two sentences can explain clearly. I try to do when I used the localization of the way say: Nationalization of oil equipment is really quite good, the price is cheap ...

Asked: How to carry on the oil equipment based?

How to carry on the oil equipment based?
  • Posted 11 months ago

Answered: What role of the Wellhead Tree?

Has the following main effects: (1) to connect the underground layers of casing, sealing layers of casing annular space, bearing hanging sleeve portion of the weight. (2) The weight of the suspension ...

Asked: What is the principle of hydraulic control valves?

what is the principle of hydraulic control valves?
  • Posted 11 months ago

Answered: What is a tertiary oil recovery, secondary oil ...

Usually the use of oil exploitation of petroleum energy called a recovery; To oil injection water, gas, and add energy to the exploitation of oil reservoir called secondary oil; And with chemical ...

Asked: What is the function of Wellhead tree?

What is the function of Wellhead tree?
  • Posted 11 months ago

Answered: What are the advantages of Butterfly Valves?

1, opening and closing it is quick, energy, and fluid resistance small, can often operating. 2, simple structure, appearance of small size, structure length short, small volume, light weight, suitable ...

Answered: Hydraulic valve

There is a website on the hydraulic valve, to provide various types of hydraulic valves: http://www.zzpv-valves.com

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