High Quality and Hot Sale API Non-Upset Tubing Coupling

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500 pc
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Item specifice:

Usage: Oilfield Material: API 5CT seamless steel pipe

Product Description:

1. Structure of API Non-Upset Tubing Coupling Description


1) Thread:NU 
2) Grade:K55 J55 L80 N80 P110 
3) Size:1.9"-4 1/2"


2. Main Features of API Non-Upset Tubing Coupling


1) Advanced test for quality 

2) MTC provided 

3) Good price and service


3. API Non-Upset Tubing Coupling Images


High Quality and Hot Sale API Non-Upset Tubing Coupling

High Quality and Hot Sale API Non-Upset Tubing Coupling

High Quality and Hot Sale API Non-Upset Tubing Coupling


4. API Non-Upset Tubing Coupling Specification


High Quality and Hot Sale API Non-Upset Tubing Coupling


5. FAQ of API Non-Upset Tubing Coupling


We have organized several common questions for our clients,may help you sincerely:


1) How about your company?

One of the leading manufacturers and suppliers specializing in this product in China, supply a wide variety of accessories consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.


2) How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


3) How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.

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Q:Joint type of pipe joint
NPT is the abbreviation of National (American) Pipe Thread, an American Standard 60 degree taper pipe thread, used in North America. National standards refer to GB/T12716-1991PT is the abbreviation of Thread Pipe, is a 55 degree taper pipe thread sealing, belonging to the Whitworth family, for the European and Commonwealth countries. Commonly used in water and gas pipe industry, taper regulations of 1:16. national standard is available on the GB/T7306-2000G is a 55 degree non thread sealing pipe thread, belonging to the family of Wyeth thread, marked G for cylinder threads. National standards refer to GB/T7307-2001In addition, the 1/4, 1/2 and 1/8 marks in the thread refer to the diameter of the thread size, in inchesYes, my wife usually refers to the size of the thread by one point, one inch equals 8, and 1/4 inches is 2, so by analogy
Q:Can flared and jacketed hydraulic couplings be used as gas line couplings?
The pressure of the pneumatic pipeline is usually 0.8MPa.Yes, the life is longer than the pneumatic one
Q:How about the water pipe fittings and millimeters?20mm is 425mm is 6Why
20mm is not a scientific argument.Should be the plastic pipe, the nominal outer diameter of DN20 plastic pipe, only corresponds to 4 points of the metal pipe threadThree,If it is a metal tube, it should be nominal diameter Dn15, and the corresponding English pipe thread is 6
Q:What's the difference between the half pipe joint and the branch seat?
The 2. branch pipe seat is widely used abroad in recent years, the branch for strengthening pipe connection, to replace the traditional use of different diameter three, reinforcing plate, strengthening pipe etc. branch connection type, which has the advantages of safety, lower cost, simple construction, improve media channel, standardization, series design has the advantages of convenient so, especially in high pressure, high temperature, large diameter and thick wall pipe is widely used, instead of the traditional branch connection method
Q:What's the meaning of the plumbing PVC pipe joint specification "1/2" "X12" and "1/2" "x18"?
Plumbing PVC pipe joint specifications 1/2, "X12" and "1/2" "x18" these two specifications belong to the British unit.
Q:What material does the hydraulic pipe joint use? Carbon steel or cast iron?
The joints are mainly welded, flared and jacketed.Cast iron is generally used on low pressure. Not welded, sealed with raw material tape and thread. 0~1.6mpa, right?.
Q:The gas cooker joint is pagoda shaped. Can it fall down and connect with bellows joint directly?
The provisions of China's domestic gas (gas interface with connection terminal interface), must be 55 degree cylindrical internal thread sealing pipe thread and external tapered thread sealing pipe thread, 55 degree conical internal thread and external tapered thread, 55 degrees of one of three non sealing pipe thread.A bellows is a tubular elastic device that is joined by folding wrinkles along a folded and telescopic direction. Bellows joints for civil water pipes and gas appliances are mostly 55 degree non hermetic pipe threads.Because the form of pipe joints is very large, they can be used in conjunction with the same thread and sealing form, so it is not sure whether the joint of the pagoda can be dropped or not.
Q:What is pressing type pipe joint
A joint body core and buckling nut strictly, crimping connector still belongs to the soft seal
Q:What's the hydraulic pipe joint material?
Selection of pipe joints, the minimum is equal to the entire hydraulic system working state of the maximum working pressure setting the maximum working pressure for each joint, not only to consider the pump outlet pressure, also consider starting pressure relief valve. Therefore, in the design of complex hydraulic pipeline, the actual pressure is best measured by field measurements. The system operating pressure has been fixed, so the maximum working pressure of each selected pipe joint shall be checked.The maximum working pressure of the pipe joint can be changed by different sealing methods or according to the change of temperature: similarly, if the pipe joint chooses the elastic seal, it will get higher working pressure than the rigid seal.International standard set 4 times insurance coefficient, the reason is the practice of design thinking, the error of pipe joint device and equipment operation process may appear, the working condition of the system stability, in order to guarantee the system not paralyzed when in operation, so the insurance coefficient of the nominal pressure of the high.
Q:Puvc pipe joint leakage how to do?
Common leakage of different types of water pipes1, water pipe leakage reason: this situation generally belongs to relatively minor, it is not difficult to solve, it is because the water pipe and faucet did not connect well.2, the leakage of water pipe: water pipe hardening or long time foreign matter blocked the water pipe, resulting in rupture.

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