Hanno Valve Flexible Flexible Wedge Gate Valvess work on the principle of by sealing the valve seat in contact with the gate wedge. Usually the sealing surface will be surfacing metal materials to increase wear resistance, such as surfacing 13Cr, STL6, stainless steel, etc. According to the different gate wedge, gate valves are divided into solid Flexible Wedge Gate Valvess and Flexible Flexible Wedge Gate Valvess.
Hanno Valve Flexible Wedge Gate Valves are a common type of valve, characterized by the use of wedge-shaped gate plates for sealing. The closing element (i.e. gate) of the Flexible Wedge Gate Valves is wedge-shaped and tightly combined with the two sealing surfaces of the valve seat to achieve a sealing effect. This design enables Flexible Wedge Gate Valvess to maintain good sealing performance under both high and low medium pressures.
Sealing principle: The sealing of Flexible Wedge Gate Valvess relies on the tight combination of the two sealing surfaces on the wedge gate and the two sealing surfaces on the valve body. This design can increase the auxiliary sealing load, thereby maintaining good sealing performance under both high and low pressure conditions.
Structural form: The structural forms of Flexible Wedge Gate Valvess include elastic wedge single gate, rigid wedge single gate, and double gate types. Different forms of Flexible Wedge Gate Valvess are suitable for different working conditions.
Application scope: Flexible Wedge Gate Valvess are widely used in oil and steam pipelines such as petrochemicals and thermal power plants, as opening and closing devices for connecting or cutting off media in pipelines.
Advantages: Flexible Wedge Gate Valvess have the advantages of compact structure, reasonable design, good valve rigidity, smooth passage, and low flow coefficient. Its sealing surface is made of stainless steel and hard alloy, with a long service life. It is filled with flexible graphite, ensuring reliable sealing and easy and flexible operation.
Driving methods: The driving methods for Flexible Wedge Gate Valvess include manual, pneumatic, electric, and gear transmission.
NO. | PART NAME | MATERIAL |
---|---|---|
1 | BODY | ASTM A216-WCB |
2 | BONNET | ASTM A216-VCB |
3 | BONNET BOLT | ASTM A193-B7 |
4 | BONNET NUT | ASTM A194-2H |
5 | GLAND EYE BOLT | ASTM A193-B7 |
6 | GLAND NUT | ASTM A194-2H |
7 | VASHER | STEEL |
8 | PIN | STEEL |
9 | HANDWHEEL | DUCTILE IRON |
10 | HANDWHEEL NUT | STEEL |
11 | STEM NUT | BRASS |
12 | RETAINING NUT | STEEL |
13 | GREASE NIPPLE | COPPER |
14 | GLAND FLANGE | ASTM A216-VCB |
15 | GLAND | ASTM A182-F6a |
16 | PACKING | GRAPHITE |
17 | BACKSEAT BUSHING | ASTM A182-F6a |
18 | STEM | ASTM A182-F6a |
19 | GASKET | STEEL+GRAPHITE |
20 | DISC | ASTM A216-WCB+13CR |
21 | SEAT | ASTM A105+STL |