Lug Type Manual Operated Knife Gate Valve

Lug Type Manual Operated Knife Gate Valve

Purpose

Mainly used for slag, bug dust, paper pulp, sewage, asphalt, grout etc. transporting pipelines in industrial, mining, environmental protection, food elc. trades, acting at connecting and closing the pipeline.

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Features

There is no dregs and no block-up in the round runner. The round runner is compactly designed and features a small space, light weight, easy repair and a long duration. The inside of the gate valve can be made in V-shape, triangular and pentagonal channels so as to suit for the fluid control requirement. There are butt—clamped and flange lug two connection types and metal hard seal, metal-to-polyurethane and reinforced PTFE soft seals.

Executive Standard

  • Flange standard. GB/T9113.
  • Test and inspection. GB/T13927.

Performance Range
PN
1.0
1.6




MPa
Strength Test
1.5
2.4
Sealing Test
1.1
1.76
Suitable Temperature
PTFE ≤200; Carbon steel ≤425; Stainless steel ≤600;
Chrome-molybdenum-vanadium steel ≤600
°C
Media used
Syrup, paper pulp, sewage, coal paste, lime-ash water etc.

Main Part Materials
Title of Part
Material
Body/Bonnet
Carbon steel, Stainless steel
Gate
Carbon steel, Stainless steel
Stem
Stainless steel
Sealing face
Rubber, PTFE, Stainless steel, Carbide Alloy

Main dimensions (1.0MPa/1.6MPa)
DN
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
Do
180
180
220
220
230
280
360
360
400
400
40
530
530
600
600
680
680
L
48
48
50
50
57
57
70
70
76
76
89
89
114
114
127
127
154
Hmax
285
298
315
365
400
475
540
630
780
885
990
1100
1200
1450
1700
2000
2300

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