Electroplating and Coating
In order to resist corrosion, all carbon steel joints are treated with electroplated zinc coating.
Clean
The components shall be cleaned to remove oil, grease and loose particles
Pressure Rating Basis
The rating is based on pressure pipe B31 at room temperature 3. Based on ASME Code of and process pipeline.
Material | Allowable Stress Value |
316 stainless steel | 20000 psi(1378 bar) |
Brass | 10000 psi(689 bar) |
Carbon Steel | 20000 psi(1378 bar) |
Female NPT to Female NPT
Part No | PNPT | Dimensions(mm) | ||
L | F | |||
inch | mm | |||
FT-02N | 1/8 | 26.4 | 1/2 | 12.7 |
FT-04N | 1/4 | 29.7 | 11/16 | 17.46 |
FT-06N | 3/8 | 36.1 | 13/16 | 20.63 |
FT-08N | 1/2 | 39.6 | 1 | 25.4 |
Material Standard
Material | Bar | Forging |
316 Stainless Steel | ASME SA479,ASTM A76 | ASME SA 18,ASTM A18 |
Brass | ASME B16ASTM B453 | ASTM B83 |
Carbon Steel | ASTM A108 | – |
Temperature Rating
The system temperature may be limited by thread sealant or, where appropriate, gasket or O-ring material.
Joint Material
Material | Maximum temperature ℃ (° F) |
316 stainless steel | 537(1000) |
Brass | 04(400) |
Carbon Steel | 190(375) |
Gasket, O-ring Material
Element | Material Science | Maximum temperature ℃ (° F) | Minimum temperature ℃ (℉) |
RS Washer | Nitrile rubber | 110(30) | -5(-13) |
Fluorocarbon FKM | 204(400) | -15(5) | |
RG,RP Washer | Copper | 204(400) | -198(-35) |
SAE,O-ring | Fluorocarbon FKM | 204(400) | -8(-0) |
The main products sold by Wofei Technology are industrial gas pressure reducers, semiconductor pressure reducers, pressure regulators, diaphragm valves, bellows valves, stainless steel valves, tube fittings, VCR fittings, stainless steel pipes, high pressure hoses, flame arrestors, check valves, precision filters, instruments, gas alarms, analytical instruments, purifiers, gas proportioners, cryogenic valves, gas supply manifolds, BSGS, GC (special gas cabinets) In order to pursue better quality and to provide customers with higher and safer technology, we strictly follow the ISO9001 standard in the management of various gas related equipment and accessories.
Q1. What products can you provide?
Re: Compression fittings(connections), hydraulic fittings, tube fittings, ball valves, needle valves etc.
Q2. Can you make the products based on our requests, such as size, connection, thread, shape and so on?
Re: Yes, We have experienced techincal team and can design and produce the products according to your requirements.
Q3. What about the quality and price?
Re: Quality is very good. Price is not low but pretty reasonable at this quality level.
Q4. Can you provide samples to test? For free?
Re: Of course, you can take several to test firstly. Your side shall bear the cost due to its high value.
Q5. Can you operate OEM orders?
Re: Yes, OEM is supported though we also have our own brand named AFK.
Q6. What payment methods for chose?
Re: For small order, 100% Paypal, Western Union and T/T in advance. For bulk purchase, 50%T/T, Western Union, L/C as deposit, and 50% balance paid before shipment.
Q7. How about the lead time?
Re: Usually, delivery time is 5-7 working days for sample, 7-10 working days for mass production.
Q8. How will you ship the goods?
Re: For small amount, international express is used mostly such as DHL, FedEx, UPS, TNT. For large amount, by air or by sea. Besides, you also can have your own forwarder pick up the goods and arrange the shipment.