JQM Series Knife Valve


JQM Knife Valve


JQM Series Double Body Bi-directional seal Knife Valve Grooveless

Product Description: JQM 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 a 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 valve Structure

Model: JQMZ73X
Working Pressure: DN50-DN200 16bar, DN250-DN600 10bar, DN650-DN700 8bar, DN750-DN1000 6bar
Type: Wafer, Lug, Flange
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
Main material: GGG40, WCB, CF3M, CF8M, CF8
Wedge material: SS316L,SS304
Sealing material: EPDM
Packing: Aramid fiber,high-water-based, rubber packing graphite
Applicable medium: Applicable for coal in power plant, slag discharge, 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.

knife valve Structure

DIN2632 PN10

DNLDD1D2D0N-ThdH1
5048165125991804-M16Ø18265
65481851451182004-M16Ø18290
80512001601322008-M16Ø18330
100512201801562408-M16Ø18360
125572502101842608-M16Ø18400
150572852402112808-M20Ø23450
2007034029526628012-M20Ø23530
250703953503193008-M20Ø23595
3007644540037032012-M20Ø23660
3507650546042935012-M20Ø23760
4008956551548040016-M20Ø23850
4508961556553045020-M24Ø27940
50011467062058250020-M24Ø271050
55011472568063820-M27Ø30Gear
60011478072568220-M27Ø30Gear
70012789584079424-M27Ø30Gear
800127101595090124-M30Ø30Gear
90012711151050100128-M30Ø30Gear
100014912301160111228-M33Ø30Gear
110014913401260122028-M33Ø30Gear
120015614551380132832-M36Ø30Gear
135017116301540148036-M39Ø30Gear
140017116751590153036-M39Ø30Gear
150019817951705164040-M39Ø30Gear
160019819151820175040-M45Ø30Gear
180021921152020195044-M45Ø30Gear
200025023252230215048-M45Ø30Gear

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
22″11475069264120-1 1/4″Ø35Gear
24″11481375069120-1 1/4″Ø35Gear
26″11487080674924-1 1/4″Ø35Gear
28″12792786480028-1 1/4″Ø35Gear
30″12798591485728-1 1/4″Ø35Gear
32″127106097891428-1 1/2″Ø41Gear
34″1271110102996532-1 1/2″Ø41Gear
36″12711701086102232-1 1/2″Ø41Gear
38″14912401149107332-1 1/2″Ø41Gear
40″14912901200112436-1 1/2″Ø41Gear
42″14913451257119436-1 1/2″Ø41Gear
44″14914051314124540-1 1/2″Ø41Gear
46″14914551365129540-1 1/2″Ø41Gear
48″15615101422135944-1 1/2″Ø41Gear
50″15615701480141044-1 3/4″Ø51Gear
52″15616251537146144-1 3/4″Ø51Gear
54″17116851594151144-1 3/4″Ø51Gear
56″17117451651157548-1 3/4″Ø51Gear

PN10 Threaded hole and Tapping hole

PN10 Threaded hole and Tapping hole

DND1NMTThread HoleTapping Hole
501254M161322
651454M161322
801608M161326
1001808M161326
1252108M161626
1502408M161626
2002958M202026
22531012M202048
25035012M202048
30040012M202048
35046016M202088
40051516M242488
45056520M2424128
50062020M2424128
55068020M2724128
60072520M2727128
70084024M2727186
80095024M3030186
900105028M3030226
1000116028M3333226

150LB Threaded hole and Tapping hole

knife valve Tapping Hole picture
DND1NMTThread HoleTapping Hole
2″(DN50)1214M5/8-111322
2-1/2″(DN65)1404M5/8-111322
3″(DN80)1534M5/8-111322
4″(DN100)1918M5/8-111326
5″(DN125)2168M3/4-101626
6″(DN150)2428M3/4-101626
8″(DN200)2998M3/4-102026
10″(DN250)36212M7/8-92048
12″(DN300)43212M7/8-92048
14″(DN350)47612M1-82066
16″(DN400)54016M1-82488
18″(DN450)57816M1 1/8-72488
20″(DN500)63520M1 1/8-724128
22″(DN550)69220M1 1/4-724128
24″(DN600)75020M1 1/4-727128
28″(DN700)86428M1 1/4-727208
30″(DN750)91428M1 1/4-727208
32″(DN800)97828M1 1/2-630208
34″(DN850)102932M1 1/2-630266
36″(DN900)108632M1 1/2-630266
40″(DN1000)120036M1 1/2-633306
40″(DN1000)120036M1 1/2-633306