FBT Female Branch Tee Stainless Steel 316L Tube Fitting Plumbing Fitting High Quality 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 ).
Tube Handling
Scratches on the tube might cause leaks . it is , therefore , important to handle the tube carefully to reduce the risk of leaks .
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 .
Inspection Tubing
Use : This is a “ No- Go ” Gauge and should be used as follows :
Make up to fitting according to the following instructions : 1/4 inch ( 6mm ) , 3/8 inch , 1/2 inch ( 12mm ) – make up 1-1/4 turns from finger tight . Check gap between nut and body , using the appropriate sized gauge . If the gauge slides easily into the gap , tighten the nut further until gauge can not enter the gap
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: 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: what types of products you can make ?
A: We can make many kinds of stainless steel materials and brass,aluminum . Valve / solenoid valve / electric valve / pneumatic valve and air cylinder products and so on .
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.
Why choose us
1: Sample order & small quantity order is acceptable .
2: Customize according to your special request .
3: Provide free products information .
4: Reliable quality assured and active after-sell service
5: One year quality guarantee
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