standard Weld Neck Flange
| Standards | ？ ASME/ANSI B16.5 Class 150 ;
CLASS 300; CLASS600;
CLASS 900; CLASS 1200; CLASS 1500; CLASS 2500) |
| SIZE | 1/2" to 60" ,
DN 12mm to DN 1500mm |
| Pressure class | Class 150 to Class 2,500, PN 2.5 to PN 250 |
| FACE | RF FF |
| Material | Carbon steel ;
stainless steel ;
alloy steel;
cast stell |
NW Long Weld Neck Flanges
Tube OD sizes: 3/8 to 2 inches
Materials:Flange: 304 or 316L stainless steel
O-rings: Viton, Buna, & silicone
Fasteners: Wingnut, SureSeal, bulkhead & EVAC clamps
Vacuum range
Elastomer seal: >=1 x 10^-8 Torr - High vacuum
EVAC metal seal: >=1 x 10^-11 Torr - UHV
Temperature range
Viton: -20°C to 200°C
Silicone: -50°C to 230°C
Buna: -30°C to 110°C
EVAC metal seal: -270°C to 150°C
XIN UNION PIPELINE Co., td was found in 2005 which collected making scientific researches, developing and manufacturing pipe fittings. The products are widely used in petroleum, chemical, boiler, heating, pharmaceuticals, construction, shipbuilding and so on. And our company has passed ISO9001, ISO14001 and other international certifications. Until now our products were exported to Europe, the Middle East, Southeast Asia, Taiwan and other countries and regions. We also got the special equipment manufacturing license which is issued by the General Administration of Quality Supervision, Inspection and Quarantine. Our company armed with the strong technology, perfect quality system and professional production ability.
At present, our company can produce high, medium and low pressure elbows, reducers, tees, crosses, reducing elbow, pipe caps, socket pipe, flange and other pipe fittings and pipes, according to ASTM, ASME, GB, GD, HG, SH and other standards. Our main products are large diameter steel plate butt-welding pipe fittings (bend radius 1D-5D, Model DN600-DN2800). Single hot forming technology for 90° Φ 2692 welded elbow filled the gap and won the national patent.
"Quality first, customer first, honest management, continuous improvement" is our company's quality policy. All the employees have always obeyed the guideline, with high quality materials and thoughtful service to win customer's fully trust. Looking forward to the future, we would prefer to make great efforts in the dental development of China and the world.
