The butterfly valve is suitable for food, medicine, petrochemical industry, power plant, steel plant, industrial environmental water treatment, high-rise buildings, water supply and drainage pipes, and is an ideal device for regulating flow and cutting off fluid.
This butterfly valve is absorption and digestion of foreign technology, combined with the domestic users opinions and accumulated experience in production and carefully developed a new generation of products.
1.Using three-dimensional eccentric structure, the body sealing ring adopts multi-layer sealing ring structure, make the butterfly plate valve sealing surface with uniform and reliable contact, can achieve without leaking gas seal.
2.Unique structure, flexible operation, energy saving, convenient, long service life.
3.High temperature resistance, corrosion resistance, wear resistance of three-dimensional eccentric.
Design and manufacture | Flange connection | Face to face | Test and inspection |
GB/T 12238、JB/T8527 | GB/T9113、JB/T79、HG20592 | GB/T 12221 | GB/T 13927 |
API 609 | EN1092-1/2、ANSI/ASME B16.5/B16.47、JIS B2220 | API609、EN558 | API598 |
Nominal diameter | DN(mm) | 50~2000 | 50~500 | |||
Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
Test pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
Gas seal test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
Leak rate | (Zero leakage or)<0.1xDNmm³/s(Conform GB/T13927 Standard) | |||||
Applicable medium | Air, water, steam, gas, oil, acid, alkali, salt with weak corrosive medium, etc | |||||
Drive form | Worm gear drive, pneumatic drive, electric drive, hydraulic drive |
Part name | Material |
Body | Cast steel, stainless steel, chrome molybdenum steel, alloy steel, duplex steel |
Plate | Cast steel, stainless steel, chrome molybdenum steel, alloy steel, duplex steel |
Seat | Stainless steel, Stellite etc. |
Sealing ring | Stainless steel and high temperature resistant asbestos board layers |
Stem | Stainless steel, chrome molybdenum steel, special material |
Shaft | Austenitic stainless steel、Nitride |
Packing | Flexible graphite、PTFE |
Packing gland | Cast steel,stainless steel |
Stents | Cast steel,stainless steel |
TJL INDUSTRY GROUP CO., LIMITED
Tel: 0086-22-28219562
Fax: 0086-22-28219554 ext.8888
Mobile:15022393555
Email: sales@tjlindustry.com
Address: 1-711,XiangNian Plaza, Dongjiang and Neijiang Road Cross, Hexi District, Tianjin China