JQC Series Knife Gate Valve



JQC  Knife Gate Valve


JQC Series Bi-directional Seal Knife Gate Valve/Disc Through the type

Product Description: JQC Series No groove bi-directional seal knife gate valve, cast iron body with the overall structure knife gate valve, including valve body, gate, and U-shaped flexible seal at the bottom of the body with grooves. When the valve is closed, the bottom of the gate edge contact with the seal and then compress the seal into the groove in the body and sealed gate realization; when the gate opens, the separate gate from the bottom edge of the seal, the seal will bounce to the same level as the groove, which will prevent the media sediment accumulated in the body cavity of the groove, no clogging, no residue, pipe easy to clean, so as to effectively improve the sealing effect knife gate valve to prevent leakage when the valve is closed.

Knife Gate Valve Structure diagram

Model: JQCZ73X
Working Pressure: DN50-DN100 16bar,DN125-DN200 10bar ,DN250-DN300 12bar ,DN350-DN400 10bar
Type: Wafer
Design Standard: MSS SP-81
Flange Standard: DIN PN10,PN16,150LB ,JIS 10K,TABLE E/D
Face to Face: MSS SP-81
Testing Standard: API-598
Operation: handwheel, electric, pneumatic, hydraulic, sprocket, electro-hydraulic, gear box
Main material:WCB,CF8M,CF8,F55,F53,2205,SS310,CF3M, CF3
Knife material: SS316L,SS304
Sealing material: EPDM,NBR,FKM,Metal
Packing: Aramid fiber,high-water-based rubber packing graphite
Applicable medium: Applicable for coal in power plant, sewage treatment, food, paper making, medicine, petroleum and chemical industry, water, oil, steam, connecting or cutting grout, gold powder, ores, slag, coal, pulp, wood pulp, tailings, fibers, dust, chemicals, sewage treatment, sedimentation tanks, asphalt, bunker export, cereals, slaughter plant waste, and other media.




JQC Dimension

DIN2632 PN10

DNLDD1D2D0N-ThdH1
5048165125991804-M16Ø18260
65484851451182004-M16Ø18292
80512001601322008-M16Ø18320
100512201801562408-M16Ø18358
125572502101842608-M16Ø18395
150572852402112808-M20Ø23450
200703402952663008-M20Ø23532
2507039535031932012-M20Ø23670
3007644540037035012-M20Ø23758
3507650546042940016-M20Ø23857
4008956551548045016-M24Ø27946
4508961556553050020-M24Ø271023
50011467062058250020-M24Ø27Gear

ANSI 150LB

DNLDD1D2D0N-ThdH1
2″48152121921804-5/8″Ø19260
2-1/2″481781401052004-5/8″Ø19292
3″511911531272004-5/8″Ø19320
4″512291911572408-5/8″Ø19358
5″572542161862608-3/4″Ø22395
6″572792422162808-3/4″Ø22450
8″703432992703008-3/4″Ø22532
10″7040636232432012-7/8″Ø25670
12″7648343238135012-7/8″Ø25758
14″7653347641340012-1″Ø29857
16″8959754047045016-1″Ø29946
18″8963557853350016-1 1/8″Ø321023
20″11469963558450020-1 1/8″Ø32Gear

PN10 Threaded hole and Tapping hole

PN10 Threaded hole and Tapping hole
DND1NMTThread HoleTapping Hole
801608M161344
1001808M161344
1252108M161644
1502408M161644
2002958M202044
22531012M202084
25035012M202084
30040012M202084
35046016M2020124
40051516M2424124
45056520M2424164
50062020M2424164
55068020M2724164
60072520M2727164

150LB Threaded hole and Tapping hole

150LB Threaded hole and Tapping hole
DND1NMTThread HoleTapping Hole
4″(DN100)1918M5/8-111244
5″(DN125)2168M3/4-101244
6″(DN150)2428M3/4-101444
8″(DN200)2998M3/4-101644
10″(DN250)36212M7/8-91684
12″(DN300)43212M7/8-91684
14″(DN350)47612M1-81884
16″(DN400)54016M1-820124
18″(DN450)57816M1 1/8-720124
20″(DN500)63520M1 1/8-724164
22″(DN550)69220M1 1/4-724164
24″(DN600)75020M1 1/4-727164