Ductile Iron Knife Gate Valve

Main material:ductile iron
Medium:pulp, sewage, coal slurry, ash, slag water mixture
Place of Origin: China
Shipping mode: by sea, by air, by train etc

Product Details

                                 

Ductile iron material knife gate valve is a kind of gate valve. It is a straight-stroke cut-off valve. The head of the knife gate valve has an oblique blade, which has a certain cutting effect on the medium. It is suitable for the treatment of media containing fibres and solid particles and sewage In the system, manual, pneumatic, and electric actuators can be worn, which are widely used in process automation systems such as papermaking, mining, chemical industry, and sewage treatment.




Feature of ductile iron knife type gate valve

1. Compact structure, reasonable design, good valve rigidity, smooth passage and small flow resistance coefficient

2. The sealing surface is made of stainless steel and hard alloy, with long service life

3. Using soft graphite packing, reliable sealing, light and flexible operation



Product parameter of DI knife gate valve

Size range: DN50-DN800

Pressure: 1.0 MPa

Operating temperature: max 80℃

Main material: GGG40/ QT400

Operation: Manual

Shell test: 1.5MPa

Seal test: 1.1 MPa

Design and manufacture: JB/T 8691-98

Design and manufacture: JB/T 8691-98
Structure length: GB/T 15188.2-94
Flange connection size: GB/T 9113-2000
Inspection and testing of valves: GB/T 13927-92


         

                           



Material list of knife gate valve in ductile iron:

Item NoPart NameMaterial
1BodyQT400/GGG40
2Seal ringrubber
3DiscSS
4SealPTFE
5NutZHMn58-2-2
6HandwheelQT400



ductile iron knife gate valve drawing


Size table of  DI knife construction gate valve


MPaDNLDD1D2HN-MD0
1
1.0
5043160125100
4-M16180
6546180145120
4-M16180
8046195160135
4-M16220
10052215180155
8-M16220
12556245210185
8-M16230
15056280240210
8-M20280
20060335295265
8-M20360
25068390350320
12-M20360
30078440400368
12-M20400
35078500460428
16-M20400
400102565515482
16-M22400
450114615565532
20-M22530
500127670620585
20-M22530
600154780725685
20-M27600
700165895840800
24-M27600
8001901010950898
24-M30680




Widely apply to various kinds of fields

application of DI knife gate valve


 



Product Process

ductile iron knife gate valve factory


gate valve supplier




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