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U Type Equal Union Pneumatic Air Fitting Tube To Union High Quality Plumbing Fitting Sanmin

U Type Equal Union Pneumatic Air Fitting Tube To Union High Quality Plumbing Fitting Sanmin

Tube Fittings Description

The tube fitting is a mechanism used both to seal and to grip tubing . The mechanical advantage and geometry of this kind of fitting produces a leak – tight assembly .

To assemble , simply insert the tube into the complete assembly until the tube bottoms – out against the shoulder of the fitting body . The two ferrules are driven forward between the nut and fitting body using the mechanical force created by rotating the nut clockwise . The Back ferrule is driven against the tapered rear of the front ferrule is driven by force into the tapered mouth of the body .

The rear ferrule is swaged radially inwards on the tube while lifting the front ferrule out to form a full – faced seal on the tapered surface of the body .

The 1-1/4 Turn of the nut from the hand tight position assures consistent drive of the sealing members . This ensures an effective seal against high pressure as well as ultra high vacuum conditions .

Tube cutting

Two different methods can be used to cut tubes :

1 . Tube Cuter

2 . Hacksaw

Hacksaw Cutting

In order to cut the tube with a hacksaw and get square ends , the tube must be cut with guide blocks

This method of cutting necessitates deburring of the tube ends.

Warning

Do not hold the tube in a vise in the place where it will be inserted into the fitting ( the vise will leave a mark on the tube that may cause leaks , and might cause ovality ).

Some Recautions to be taken

1.Tubes must not be dragged on the floor .

2.Tubes must not be dragged out of a tubing rack , especially in case of large OD tubes

Copper Tubing

If using copper tubing from a roll , hold the end of the tube and roll the roll outwards allowing the tubing to lie on a flat surface .

High Safety

In applications where severe conditions and high pressure exist , we recommend the following installation procedures :

1. Check that the nut is finger tight

2. Insert the tube ( Up to the shoulder )

3. Rotate the nut with a wrench until the tube does not rotate freely .

4. Mark position of the nut .

5. Rotate the nut 1-1/4 turns .

This method ensures that even if the tube O.D. is at the minimum tolerance , the ferrules will be in contact with the tube for the full 1-1/4 rotation.

In order to assure maximum fitting reliability and performance , great care should be given when selecting the tubing for each application

Tube Selection

Four variables must be considered when ordering tube for use with fittings :

1. Material

2. Tube wall thickness

3. Tube surface finish

4. Tube hardness

Tubing should comply with standard ASTM A213 or ASTM A269 , be seamless , and fully annealed .

The tube must be red of scratches and suitable for bending and flaring .

FAQ

Q: What ' s your delivery date ?
A: It depends on the number of orders . Delivery date is 7 - 30 days .if small order,pls buy from our aliexpress shop, If you need emergency products , we can speed up the production of the first arrangement .

Q: Do your company have specialized technical personnel ?
A: Design as your requirements,and have QC for make 100% inspection

Q: Can the product be made with our logo and brand ?
A: Yes , of course , we can make . we are OEM supplier for years and professional to make . But you need give us the authorization for work.

Q: What is the price of the product ?
A: Our prices are based on the size and type of material , if you can give me the information ,
then we can give you an estimated price is for reference only . We can do any size and any desgin .

Q: How much is our minimum order quantity ?
A: Our minimun quantity is 1 Piece .

Why choose us

1: Various style for each products and completely series pneumatic products .

2: Reliable quality assured and active after-sell service
3: One year quality guarantee

4: Sample order & small quantity order is acceptable .
5: Large stock for fast shipping .

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Categories	Pneumatic Air Fittings
Brand Name:	NBSANMINSE
Model Number:	U
Certification:	ISO9001
Place of Origin:	CHINA
MOQ:	10PCS
Price:	Negotiate
Payment Terms:	L/C,T/T
Supply Ability:	10000PCS
Delivery Time:	5-30days
Packaging Details:	Box
Type:	Equal Union
Standard or Nonstandard:	Standard
Material:	Stainless Steel 316L
Pressure:	3000 Psi
Warranty:	1 Year