Wafer Lug Knife Gate Valve
Wafer Lug Knife Gate Valve - Image 2
Wafer Lug Knife Gate Valve - Image 3

Wafer Lug Knife Gate Valve

As a knife gate valve manufacturer, we offer uni-directional and bi-directional knife gate valve.

Wafer knife gate valve is a kind of gate valve which is shut off valve directly. Its gate head is design with bevel cutting edge which has a cutting action to medium. Knife gate valve are suitable for those medium contain fibers and solid particles and sewage treatment systems.

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Features:

Integral body, small flow resistance, smooth operation

Ring stem, non-rising stem type

Uni-direction, bi-direction flow

Connection : flanged wafer or lug, semi-lug

Material: WCB, A351 CF8, CF8M

Size: 2″ to 48″(DN50 to DN1200)

Pressure rating: Class 150, PN10, PN16

Operator: manual handwheel, bevel gear, pneumatic, hydraulic, electric motor, chain wheel

Material List:

No. Part Name ASTM Material
C.S 304 316
1 Body A216 WCB A351 CF8 A351 CF8M
2 Seat 20Cr13 304 A351 CF8M
3 O-ring NBR NBR NBR
4 O-ring NBR NBR NBR
5 Seat retainer A216 WCB A351 CF8 A351 CF8M
6 Screw 35# 304 316
7 Guide pole PTFE PTFE PTFE
8 Screw 35# 304 316
9 Bonnet poles 45#+chromium plated
10 Bolt 35# 304 316
11 Stem pakcing PTFE PTFE PTFE
12 Gland flange A216 WCB A351 CF8 A351 CF8M
13 Nut 15# 304 316
14 Gate 20Cr13, SS304, SS316, 904L, SS2205
15 Straight pin 45# 45# 45#
16 Split pin Stainless steel Stainless steel Stainless steel
17 Flat Key 45# 45# 45#
18 Stem nut Brass Brass Brass
19 Stem 2Cr13 2Cr13 2Cr13
21 Bearing Bearing steel Bearing steel Bearing steel
22 Bearing seat A216 WCB A216 WCB A216 WCB
23 Nut 45# 45# 45#
24 Handwheel Ductile iron Ductile iron Ductile iron
25 Round nut 45# 45# 45#

Dimension List:

Dimensions PN10,PN16, Class 150
NPS(inch) 2 2-1/2 3 4 5 6 8 10 12 14 16
DN(mm) 50 65 80 100 125 150 200 250 300 350 400
F-F 48 48 51 51 54 54 70 70 76 76 89
Dimensions PN10,PN16, Class 150
NPS(inch) 18 20 24 28 32 36 40 48
DN(mm) 450 500 600 700 800 900 1000 1200
F-F 89 114 114 117 117 117 216 254

Applications:

Syrup, paper pulp, sewage, coal slurry, dust, slag-water mixture

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