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Knife gate valve (pneumatic)

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Knife gate valve (pneumatic)

Product model: PZ973X
Nominal diameter: DN50~2000mm
Nominal pressure: PN0.6~2.5MPa
Working temperature: -38 ° C~1100 ° C
Applicable medium: pulp, sewage, coal slurry slag water mixture

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Product structure characteristics
Knife gate valve is a straight stroke switch shut-off valve, which has a beautiful appearance, lightweight, and compact structure, and can be controlled manually or pneumatically. The blade gate of the blade gate valve has strong shear force, making it very suitable for working conditions containing particles or fibers such as paper making, sewage treatment, mining, sugar making, chemical fiber, etc.

Its main structural features include

      1. The knife gate valve adopts an integral structure, ultra-thin valve body, full bore flow rate, which greatly avoids medium leakage and flow loss, and is easy to install and use
      2. The bottom of the valve body flow channel uses fixed guide claws to fix the gate plate, replacing the groove design, thereby avoiding the phenomenon of jamming when the valve is closed due to medium accumulation.
      3. The bottom of the gate adopts a knife shaped arc design, so the gate has a strong shear effect on the medium and excellent sealing effect when moving.
      4. The replaceable valve seat design uses the valve seat cover to fix and pre tighten the valve seat. When the sealing surface of the valve seat is not tightly sealed, adjusting the fixing screws of the valve seat cover can improve the sealing effect.

5. The dual bearing design greatly reduces the torque of the valve, making it easy to open and close the valve

Main outer dimensions(mm)

Nominal pressure（MPa）	DN	L	D	D1	D2	H	N-M	D0	W(Kg)
1.0	50	43	160	125	100	285	4-M16	180	8
	65	46	180	145	120	298	4-M16	180	10
	80	46	195	160	135	315	4-M16	220	12
	100	52	215	180	155	365	8-M16	220	14
	125	56	245	210	185	400	8-M16	230	22
	150	56	280	240	210	475	8-M20	280	29
	200	60	335	295	265	540	8-M20	360	38
	250	68	390	350	320	630	12-M20	360	66
	300	78	440	400	368	780	12-M20	400	100
	350	78	500	460	428	885	16-M20	400	119
	400	102	565	515	482	990	16-M22	400	195
	450	114	615	565	532	1100	20-M22	530	285
	500	127	670	620	585	1200	20-M22	530	389
	600	154	780	725	685	1450	20-M27	600	529
	700	165	895	840	800	1700	24-M27	600	790
	800	190	1010	950	898	2000	24-M30	680	850
	900	203	1110	1050	1005	2300	28-M30	680	900
	1000	216	1220	1160	1115	2500	28-M30	700	1050
	1200	254	1450	1380	1325	2800	32-M36	800	1300
1.6	50	43	160	125	99	285	4-M16	180	8.5
	65	46	185	145	120	295	4-M16	180	10.7
	80	46	200	160	135	315	8-M16	220	13
	100	52	220	180	155	365	8-M16	220	15
	125	56	250	210	185	400	8-M16	230	23.5
	150	56	285	240	210	475	8-M20	280	31
	200	60	340	295	265	540	12-M20	360	40.7
	250	68	405	355	310	630	12-M22	360	70
	300	78	460	410	375	780	12-M22	400	107
	350	78	520	470	435	885	16-M22	400	129
	400	102	580	525	485	990	16-M27	400	215
	450	114	640	585	545	1100	20-M27	530	305
	500	127	715	650	609	1200	20-M30	530	410
	600	154	840	770	720	1450	20-M36	600	550
	700	165	910	840	788	1700	24-M36	600	820
	800	190	1025	950	898	2000	24-M36	680	950
	900	203	1125	1050	998	2300	28-M36	680	1020
	1000	216	1255	1170	1110	2500	28-M42	700	1120
	1200	254	1485	1390	1325	2800	32-M48	800	1480