X-over Couplings

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China Main Port
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TT or LC
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10 Pieces pc
Supply Capability:
60000 Pieces per Month pc/month

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Product Description:


X-over Couplings 


Std Ref.:API 5CT


Size:From 1.9 to 4-1/2''




Type:NU,EU,special clearance


Our company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints, adapter couplings, stabilizers, anchors of oil pumps and revolving sand gravitated device of well, etc. We always do business based on the principle of equality and mutual benefit, we provide the high quality and competitive price products.


Our products and the pictures as bellow: 

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110  
2.We also supply permium thread products by customer's request  
3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling fro4-1/2"to 13-3/8"
4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).   
5.Surface treatment: Whole phosphating, or inside phosphating and outside coating
6.Packing: By carton, wooden case, wooden pallet, or by  requirements of customers 

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Q:How do you explain the pipe joint?
Steel pipe marking should be DN, DN is nominal diameter, DN20 galvanized pipe does not mean that the outer diameter of the pipe is 20mm, the outer diameter of the steel pipe, but 26.8mm; DN15 galvanized pipe, the outer diameter is 21.3mm.
Q:Hydraulic pipe joint seal, with raw meal belt and sealant that good?
Use sealant.It is not recommended to use the raw meal belt and can not be sealed. It will cause oil leakage. The raw meal belt will be contaminated by the oil, which is particularly easy to cause the phenomenon of the valve or plug the oil control port. If you must use the raw meal belt, then you must pay attention to the coil when you can not bring the raw material out of the joint, so as not to be sucked into the tank by oil.
Q:How do you disconnect the PVC pipe joint that has been glued?
At present, the market has not sold a solution to dissolve the sticky joints.Saw sawed off, then a large diameter pipe (for casing), both ends of the bore brush PVC glue, bonding, and the original tube after curing, it can be used as normal.
Q:What are the links between hydraulic components and pipe couplings that are used to prevent leakage?
If it is a super high pressure seal (70 MPa or more), the metal cone can be used for hard sealing, that is, the inclined joint of the pipe joint is matched with the inclined plane at the component thread.
Q:What are the types of tubing and pipe couplings applicable to each occasion?
Pipe joint is detachable between the tubing and tubing, tubing and hydraulic components of the connection, it should satisfy the convenient assembly and disassembly, reliable connection, reliable sealing, small size, large capacity oil, small pressure loss, good processing etc..
Q:How to use the clamp type pipe joint?
The sleeve joint is usually used in the middle of the gas or liquid delivery pipe, so it is convenient and quick to use
Q:The gas cooker joint is pagoda shaped. Can it fall down and connect with bellows joint directly?
The gas stove is now generally provides two kinds of interface for the user free choice, Green joint (the joint) can be connected with a rubber tube or stainless steel corrugated pipe gas stove (socket), Green joint is a movable connection, threaded interface is the 1/2 Green joint off, can be connected with stainless steel bellows tube (screw type stove).The only way to provide Green joint connections is small manufacturers of products.The water heater is also the joint of 1/2, but our usual method is to connect a gas with 1/2 live copper ball valve, and then connect the non fixed stainless steel bellows to the gas.Stainless steel bellows, pipe (thread), one end is 4 points (1/2) interface, and the other end is 3 points of the interface. 3 points, one end of the interface used to connect 4 and 3 points gas valve (one thread 4 points, the other end of thread 3 points).In order to avoid water and mix with water hose or ball valve with stainless steel bellows, gas 4, 3 points 4, 3 ball valve and gas stove pipe branch of stainless steel corrugated 3 points at one end of the thread and the water with the product of 3/8 thread is different, can not connect to each other.Stainless steel bellows, water products and gas products, testing items and standards are not the same, do not use water products instead of gas products, it is also not suitable for small manufacturers of incomplete production of gas products
Q:What are the specifications and models of hydraulic pipe fittings?
The connection forms of the pipe joint include thread, welding and clamping sleeve, and the shape of the pipe joint is straight through and elbow
Q:What is the reason that the rubber hose of the fire hose is flowing black oil?
This is the groove of the fire trench, the connection of the pipeline meets all the requirements and the quality is not satisfied. That is, the quality of aprons.
Q:Hot melt pipe joint leakage how to do?
First of all, to find the cause of leakage of hot melt pipe joints, there is a reason to know how to answer, the following are a few solutions;1, the safest solution is to replace the leaking parts of the pipe. Off valve, drain, with PPR scissors cut Water Leakage parts of pipeline, PPR soup machine, with a direct it. The process is uncomplicated and the skilled worker will be able to solve it in 30 minutes.
Our company has integrated equipment and processing capacities of machining, heat-treatment, surface treatment, and hot extruding. For human resources, we have 16 senior engineers, 16 engineers and technicians and 14 inspectors, and have advanced processing technology and experience in casing and tubing couplings, pup joints, tool joints and down hole tools. Quality of our products is stable and excellent.

1. Manufacturer Overview

Location Henan,China (Mainland)
Year Established 1999
Annual Output Value US$10 Million - US$50 Million
Main Markets 16.72% North America
16.67% South America
16.67% Eastern Europe
16.67% South Asia
16.67% Mid East
16.60% Southeast Asia
Company Certifications ISO9001

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin port,Shanghai port,Qingdao port
Export Percentage
No.of Employees in Trade Department 6-10 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 30,000-50,000 square meters
No. of Production Lines 2
Contract Manufacturing OEM Service Offered Buyer Label Offered
Product Price Range Low and/or Average