Knife gate valve is used to cut through extremely thick fluids and dry bulk solid.Hiton build a leading brand of knife gate valve.

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HITON SPECIAL VALVE
We are dedicated to providing high q�ality products
and serv1ce to every customer.
Knife gate valve
© Knife gate valve
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 valves are suitable for those mediums contained fibers
and solid particles, and sewage treatment systems. Operated by manual, pneumatic or electric actuators, knife
gate valves are widely used in the process of automatic control systems in paper making, mining, chemical and
sewage treatment industries.
© Product features
1. lntegral body design, small flow resistanee, smooth operation.
2. Stem drive is designed with 2 plane bearings, the driving frietion is greatly redueed so making operation of
valve beeomes smooth and light.
3. Seal with moveable sealing design and 0-ring ean provide a preloading foree to push the seat sealing ring
touehing tightly with gate whieh ean provide a seif eompensation to the sealing surfaee when it had been worn
after long time in serviee, so its serviee life ean be inereased.
4. Fixed guide elaw, without groove design, so medium is not easy to be aeeumulated and bloeked.
5. Material of seat is seleeted aeeording to the medium and serviee eondition, ehoosing metal seal or soft seal.
Metal seal with gate surfaee is eoated with hard ehromium, or Nitriding treatment, to inerease its wear resistanee.
Soft seal will be with PTFE seat, or EPDM, NBR, which have good sealing performance and excellent corrosion
resistance.
6. With excellent sealing performance and economical practicality, and its operation can be by manual, pneumatic
or electric actuator, so its application is very wide.
© Bill of material for knife gate valve with manual operation
No. Part name Qty(PC) Body ( WCB)
1 Body 1 WCB
2 0-ring 1 NBR
3 Seat 1 20Cr13
4 0-ring 1 NBR
5 Seat retainer 1 WCB
6 Screw 4 35
7 Guide pole 2 PTFE
8 Screw 2 35
9 Bonnet poles 4 45 Chromium plated
10 Bolt 4 35
11 Stem paeking 3 PTFE
12 Gland flange 1 WCB
13 Nut 4 15
14 Gate 1 20Cr13
15 Straight pin 1 45
16 Split pin 1 Stainless steel
17 Flat Key 1 45
18 Stem nut 1 Brass
19 Stem 1 2Cr13
21 Bearing 2 Bearing steel
22 Bearing seal 1 WCB
23 Nut 4 45
24 Handwheel 1 Duetile iron
25 Round nut 2 45
Body ( CF8) Body ( CF8M)
CFS CFSM
NBR NBR
304 316
NBR NBR
CFS CFSM
304 316
PTFE PTFE
304 316
45 Chromium plated 45Chromium plated
304 304
PTFE PTFE
CFS CFSM
304 304
304 316
45 45
Stainless steel Stainless steel
45 45
Brass Brass
2Cr13 2Cr13
Bearing steel Bearing steel
Cast steel Cast steel
45 45
Duetile iron Duetile iron
45 45
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HITON SPECIAL VALVE
We are dedicated to providing high q�ality products
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© Bill of material for knife gate valve with pneumatic operation
NO. Part name Qty(PC) Body ( WCB)
1 Body 1 WCB
2 0-ring 1 NBR
3 Seat 1 20Cr13
4 0-ring 1 NBR
5 Seat 1 WCB
6 Screw 4 35
7 Guide pole 2 PTFE
8 Screw 2 35
9 Bonnet pales 4 45+Chromium plated
10 Boil 4 35
11 Stem paeking 3 PTFE
12 Gland flange 1 WCB
13 Nut 4 15
14 Gate 1 20Cr13
15 Straight pin 1 45
16 Nut 1 15
17 Lower cover 1 WCB/0235
18 Bearing 2 Bearing steel
19 Y-ring 1 PU
20 Snap ring 1 25Mn
21 0-ring 1 NBR
22 Tie rods 4 Q235
23 Pistan 1 0235/WCB
24 0-ring 1 NBR
25 Guide ring 1 PTFE
26 Bait 1 35
27 Cylinder 1 Aluminum/0235
28 Upper Cover 1 WCB/0235
29 Nut 4 15
30 Washer 1 PTFE
31 Adjusted screw 1 35
Body ( CF8) Body ( CF8M)
CF8 CF8M
NBR NBR
304 316
NBR NBR
CF8 CF8M
304 316
PTFE PTFE
304 316
45+Chromium plated 45+Chromium plated
304 304
PTFE PTFE
CF8 CF8M
304 304
304 316
45 45
15 30
WCB/0235 WCB/0235
Bearing steel Bearing steel
PU PU
25Mn 25Mn
NBR NBR
0235 0235
0235/WCB 0235/WCB
NBR NBR
PTFE PTFE
35 35
Aluminum/0235 Aluminum/0235
WCB/0235 WCB/0235
15 15
PTFE PTFE
35 35
© Product category
1. Lug wafer type knife gate valve: DN50-DN600 ( 2" -24" )
Pressure rating, DIN PN10, PN16, ANSI 150
2. Wafer through conduit knife gate valve, DN50-DN600 ( 2" -24" )
Pressure rating, DIN PN10, PN16, ANSI 150
3. Square port knife gate valve, DN150-DN400 ( 6" -18" )
Pressure rating, DIN PN10, PN16, ANSI 150
© Design standard
1. End /lange standard: GB!T 9113.1-2000 , JB{T 79.1-1994, HG 20592-2009, ASME B 16.5 EN 1092-1: 2001
2. Pressure/temperature rating: GB!T 12224-2007 ASME B16.34-2003, ISO 7005-1
3. Face to face standard: MSS SP 81-2001 GB{T 12221-2005 J16
4. Working temperature range: -29"C-120"C Narmal temperature
5. Shell and seal pressure test,
Shell and seal pressure test standard: JB{T 9092-1999
Leakage rate of metal to metal seal test, MSS SP 81-2001 40ml/incho
Shell test pressure shall be 1.5 times of PN the pressure rating determined for material at 38 "C listed in ASTM B16.34.
Seal test pressure shall be at 2.8 Bar. Test Fluid shall be fresh water containing a corrosion inhibitor.
Acceptance criteria of leakage rate for sott seal PTFE will be according to 1/10 that of metal to metal seal.
Acceptance criteria of leakage rate for soft seal EPDM and NBR will be zero, i.e. no visible leakage.
© Structural sketch of seat design
Floating type metal seat A Sott PTFE seal B Sott EPDM seal C
Floaling bi-direclional melal seat D Sofl bi-direclional PTFE seal E Sofl bi-directional EPDM seal C
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HITON SPECIAL VALVE
We are dedicated to providing high q�ality products
and serv1ce to every customer.
© Knife gate valve with gearbox operation © Knife gate valve with pneumatic actuator
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50 48 460 520 80 <f, 125 2- i 18 2-M16 <f, 120.5 4-5/8-11NC
65 48 530 595 80 i 145 2- <t, 18 2-M16 t 139.5 4-5/8-11NC
80 51 550 650 100 <t, 160 6- <t, 18 2-M16 <t, 152.5 4-5/8-11NCl l l PN16 150Lb
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100 51 610 715 100 <t, 180 6- <t, 18 2-M16 <t, 190.5 8-5/8-11NC
200 70 885 1060 <f, 295 8- i 22 4-M20 <f, 298.5 8-3/4-10NC
250 70 1000 1280 i 355 8- <t, 26 4-M24 t 362 12-7/8-9NC 125 57 675 795 125 <t, 210 6- <t, 18 2-M16 <t, 216 8-3/4-10NC
150 57 760 890 125 <t, 240 6- <t, 22 2-M20 <t, 241.5 8-3/4-1ONC
300 76 1250 1460 r/,410 8- <t, 26 4-M24 <t, 432 12-7/8-9NC
200 70 950 1115 160 <t, 295 8- <f, 22 4-M20 <t, 298.5 8-3/4-10NC
350 76 1390 1610 <t, 470 10- <t, 26 6-M24 <t, 476.3 12-1-8NC 250 70 1135 1340 200 <t, 355 8- <t, 26 4-M24 <t, 362 12-7/8-9NC
300 76 1320 1545 250 <t, 410 8- <t, 26 4-M24 <t, 432 12-7/8-9NC
400 89 1570 1850 <t, 525 10- <t, 30 6-M27 <t, 540 16-1-8NC
350 76 1500 1750 300 <t, 470 10- <t, 26 6-M24 <f, 476.3 12-1-8NC
450 89 1770 2070 <t, 585 12- <t, 30 8-M27 <t, 578 16-1 1/8-7NC
400 89 1670 1925 300 <t, 525 10- <t, 30 6-M27 <t, 540 16-1-8NC
500 114 1900 2240 <t, 650 12- <t, 33 8-M30 <t, 635 20-1 1 /8-7NC 450 89 1860 2170 320 <t, 585 12- <t, 30 8-M27 <t, 578 16-1 1/8-7NC
500 114 2020 2380 350 <t, 650 12- <t, 33 8-M30 <t, 635 20-1 1/8-?NC
600 114 2180 2540 <t, 770 12- <t, 36 8-M33 <t, 749.3 20-1 1/4-6NC
600 114 2290 2680 350 <t, 770 12- <t, 36 8-M33 <t, 749.3 20-1 1/4-6NC
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and serv1ce to every customer.
© Through conduit knife gate valve with pneumatic actuator © Through conduit knife gate valve with pneumatic actuator
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65 48 530 730 100 it145 4-M16 it145 4-M16 it139.5 4-5/8-11NC
350 76 1400 2350 350 11:460 12-M20 i470 12-M24 i476.3 8-1-8NC
80 51 550 815 125 it 160 4-M16 it 160 4-M16 it 152.5 4-5/8-11NC
400 89 1520 2630 350 12-M24 12-M27 12-1-8NCit515 it525 it540
100 51 630 920 125 it 180 4-M16 it 180 4-M16 it 190.5 4-5/8-11NC
450 89 1750 2950 350 it 565 16-M24 it 585 16-M27 it 578 12-1 1/8-7NC
125 57 700 1050 125 it 210 4-M16 it 210 4-M16 it 216 4-3/4-10NC
500 114 1930 3290 400 it 620 16-M24 it 650 16-M30 it 635 16-1 1/8-7NC
150 57 780 1220 160 it 240 4-M20 it 240 4-M20 it 241.5 4-3/4-10NC
200 70 980 1560 200 it 295 4-M20 it 295 8-M20 it 298.5 4-3/4-10NC 600 114 2120 3740 400 it 725 16-M27 it 770 16-M33 it 749.3 16-1 1/4-6NC
250 70 1170 1900 250 it 350 8-M20 it 355 8-M24 it 362 8-7/8-9NC
300 76 1350 2150 300 it 400 8-M20 it 410 8-M24 it 432 8-7/8-9NC
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