Non-welded bow-spring centralizer is available in the hinged style only. The bow springs of this centralizer are attached to the end rings without welding. The centralizer bow end is connected to the end rings with a locking tab that bears the load force on the centralizer. The centalizers are supplied in hinged segments joined by hinge pins in each segment. All non-welded centralizers meet or exceed the requirements of API Specification 10D, which dictates the minimum restoring and maximum starting forces for centralizers for various casing/hole size combinations.

 All welded and non-welded bow spring centralizers are available in most common hole/casing sizes.

vide a reliable and safe well service by our professional engineer team on cementi

ng oilwell

2. manufacture as customers design details request

3. the centralizer colors according to acustomers'

4. good and safe package for sea transportation

5.high quality and consistent reliable integral centralizere

6.sincere and responsible aftersales services

Aftersales services

a.Assist clients to prepare for the first construction scheme;
b. Install and debug the equipment;
c. Train the first-line operators once customer need

d. Examine the equipment regularly;
e.Take initiative to eliminate the troubles rapidly at site;
f. Distribute the guarantee fittings door-to-door
g.Provide perfect service;
h. Provide technical exchanging;
i.Provide maintenance for big items on your side

1.Dezhou Yuanda Petroleum Machinery Co., Ltd. is a very famous high tech enterprise and one of leading factory

 in Dezhou China.

2.We have our own design,development,production,sales and sevice  

3.Registered capital of 20 million yuan, covers an area of 78,000 square meters,two large production plants which cover 9,000 square meters , 4. Advanced production equipment with a total investment of more than 30 million in fixed assets element. 

5.Employs 128 people, including 38 engineers and technicians, and 86 secondary education workers. 

6.We has passed ISO9001 quality system certification of DNV, ISO14001, OHSAS18001 certification.

1.Question:How to store?

    Answer   :The product should be stored in a dry warehouse with a flat ground, the accessories should be 

                     kept away from rain, sunshine and exposure of sea water.  Make sure not to unpack or remove

                     the plastic bags unless you need it to work. 

2.Question:How to transport?
   Answer   :Handle with care, no deformation should occur due to dropping or collision during convey.  

3.Question: What's the demand for maintenance?

   Answer   :Storage time should not exceed 2 years.