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KZ43F/H/Y, Z43F/H/Y Manual Single Gate With Diversion Hole Flat Gate Valve

KZ43F/H/Y, Z43F/H/Y manual single gate valve with guide hole flat gate valve is designed to meet the long-term transportation service of crude oil and natural gas. Meets the API6D specification requirements, has bidirectional blocking and release functions, and can be used for bidirectional fluid shut-off. The transmission mode of PN10~PN160 is manual, and the connection method is flange connection. The rising stem parallel rigid single gate is used, and the sealing surface material of the valve seat is chromium stainless steel+PTFE or metal chrome plating process is used to enhance the wear resistance of the sealing surface, reduce costs, and improve service life. Mainly used in pipelines with suspended particles such as gas, natural gas, and chemical gases. The flat gate valve with a guide hole is also convenient for cleaning pipelines.

Product features:

Adopting a floating valve seat, bi-directional opening and closing, reliable sealing, and flexible opening and closing.
The gate is equipped with guide bars for precise guidance, and the sealing surfaces are sprayed with hard alloy for erosion resistance.
The valve body has a high load-bearing capacity, and the channel is a straight through type. When fully open, it is similar to the straight pipe and passes through the gate guide hole, with very small flow resistance. The valve stem adopts composite packing and multiple seals, ensuring reliable sealing and low friction.
When closing the valve, turn the hand wheel clockwise to move the gate down to the bottom. Due to the pressure of the medium, the inlet sealing seat is pushed towards the direction of the gate, forming a larger sealing pressure ratio and forming the first seal. At the same time, press the gate towards the sealing seat at the outlet end to form a double seal.
Due to the use of double sealing, vulnerable parts can be replaced without affecting pipeline operation. This is an important feature of our factory’s products prioritizing similar products both domestically and internationally.
When opening the gate, rotate the hand wheel counterclockwise to move the gate upwards, and the guide hole will be connected to the channel hole. As the gate rises, the through hole gradually increases. When it reaches its limit position, the diversion hole coincides with the channel hole, and it is fully open at this time.

Execution standards:
Design and Manufacturing: JB/T5298 API6D
Flange size: JB/T79 ANSIB16.5 MSS SP44
Pressure and temperature: ANSIB16.34
Structural length: JB/T 5298 ANSIB16.10
Welding connection size: GB/T12224 ANSIB16.25
Inspection and testing: JB/T9092 API6D

Product performance parameter:

Performance parameters of KZ43F/H/Y, Z43F/H/Y manual single gate valve with guide hole flat gate valve
Pressure rating（MPa）	1	1.6	2.4	4
Valve strength test pressure（MPa）	1.5	2.4	3.6	6
Valve sealing test pressure（MPa）	1.1	1.76	2.64	4.4
Applicable temperature ℃	﹣29℃～150℃
Main material	High quality carbon steel
Connection form	Flange connection
Form structure	Rising stem single gate flat plate
Open and close form	Manual hand wheel
Applicable medium	Water, oil products, steam, gas, sulfur-containing natural gas, media with suspended particles etc
Valve structure length standard	GB12221-89

Product parts material:

Materials of KZ43F/H/Y, Z43F/H/Y manual single gate valve with guide hole flat gate valve components

Model	Material
Model	Valve body	Valve stem	Sealing surface	Filler
Z43F-10C～160	Carbon steel	Chromium stainless steel	Chromium stainless steel +PTFE	Flexible graphite,PTFE,PTFE+O-type rubber ring
KZ43F-10C～160	Carbon steel (anti vulcanization treatment)	Anti vulcanization stainless steel	Chromium stainless steel +PTFE	Flexible graphite,PTFE,PTFE+O-type rubber ring

Product external structural size:

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN10 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	178	160	125	100	20	4×φ18	450	130	250	25
65	190	180	145	120	20	4×φ18	550	160	300	44
80	203	195	160	135	22	4×φ18	610	180	300	49
100	229	215	180	155	22	8×φ18	700	214	300	57
125	254	245	210	185	24	8×φ18	798	257	350	104
150	267	280	240	210	24	8×φ23	895	300	350	115
200	292	335	295	265	26	8×φ23	1130	388	350	154
250	330	390	350	320	28	12×φ23	1290	475	400	264
300	356	440	400	368	28	12×φ23	1480	547	450	330
350	381	500	460	428	30	16×φ23	1600	625	450	506
400	406	565	515	482	32	16×φ25	1850	712	500	616
450	432	615	565	532	32	20×φ25	2080	785	500	858
500	457	670	620	585	34	20×φ25	2300	880	600	1155
600	508	780	725	685	36	20×φ30	2680	1045	800	1848
700	610	895	840	800	40	24×φ30	3080	1190	800	2475
800	660	1010	950	905	44	24×φ34	3491	1360	1000	3498
900	711	1110	1050	1005	46	28×φ34	3897	1510	1000	4686
1000	811	1220	1180	1115	50	28×φ34	4317	1715	1200	6094

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN16 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	178	160	125	100	16	4×φ18	450	130	250	27
65	190	180	145	120	18	4×φ18	550	160	300	46
80	203	195	160	135	20	8×φ18	610	180	300	52
100	229	215	180	155	20	8×φ18	700	214	300	60
125	254	245	210	185	22	8×φ18	798	257	350	110
150	267	280	240	210	24	8×φ23	895	300	350	126
200	292	335	295	265	26	12×φ23	1130	388	350	165
250	330	405	355	320	30	12×φ25	1480	547	450	385
300	356	460	410	375	30	12×φ25	1480	547	450	385
350	381	520	470	435	34	16×φ25	1660	625	450	550
400	406	580	525	485	36	16×φ25	1850	712	500	671
450	432	640	585	545	40	20×φ30	2080	785	500	1069
500	457	705	650	608	44	20×φ34	2300	880	600	1320
600	508	840	770	718	48	20×φ41	2680	1045	800	2035
700	610	910	840	788	50	24×φ41	3080	1190	800	3201
800	660	1020	950	898	52	24×φ41	3491	1360	1000	3960
900	11	1120	1050	998	54	28×φ41	3897	1510	1000	5445
1000	811	1255	1170	1110	56	28×φ48	4317	1715	1200	6776

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN25 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	178	160	125	100	20	4×φ18	450	130	250	27
65	190	180	145	120	22	8×φ18	550	160	300	49
80	203	195	160	135	22	8×φ18	610	180	300	55
100	229	230	190	160	24	8×φ23	700	214	300	66
125	254	270	220	188	28	8×φ25	798	257	350	121
150	267	300	250	218	30	8×φ25	895	300	350	121
200	292	360	310	278	34	12×φ25	1130	390	350	181
250	330	425	370	332	36	12×φ30	1290	480	400	310
300	336	485	430	390	40	16×φ30	1480	550	450	410
350	381	550	490	448	44	16×φ34	1660	625	450	580
400	406	610	550	505	48	16×φ34	1850	710	500	700
450	432	660	600	550	50	20×φ34	2080	785	500	110
500	457	730	660	610	52	20×φ41	2300	880	600	1410
600	508	840	770	718	56	20×φ41	2680	1050	800	2120
700	610	955	875	815	60	24×φ48	3080	1190	800	3310
800	660	1070	990	930	64	24×φ48	3491	1360	1000	4200
900	711	1180	1090	1025	66	28×φ54	3897	1510	1000	5630
1000	811	1305	1210	1140	68	28×φ58	4317	1720	1200	7040

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN40 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	216	160	125	100	20	4×φ18	458	130	250	42
65	241	180	145	120	22	8×φ18	555	150	300	62
80	283	195	160	135	22	8×φ18	615	180	300	75
100	305	230	190	160	24	8×φ23	710	214	300	82
125	381	270	220	188	28	8×φ25	800	257	350	146
150	403	300	250	218	30	8×φ25	796	300	350	181
200	419	375	320	282	38	12×φ30	1135	388	350	346
250	457	445	385	345	42	12×φ34	1401	475	400	451
300	502	510	450	408	46	16×φ34	1580	547	450	682

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN64 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	250	175	135	105	26	4×φ23	460	158	300	60
65	280	200	160	130	28	8×φ23	555	190	300	79
80	310	210	170	140	30	8×φ23	625	225	350	93
100	350	250	200	168	32	8×φ25	720	255	350	108
125	400	295	240	202	36	8×φ30	806	275	400	180
150	450	340	280	240	38	8×φ34	910	330	400	225
200	550	405	345	300	44	12×φ34	1145	410	500	385
250	650	470	400	352	48	12×φ41	1411	490	500	539
300	750	530	460	412	54	16×φ41	1590	570	600	836

KZ43F/H/Y, Z43F/H/Y manual single gate with guide hole flat gate valve PN160 connection size

DN	L	D	D>1	D>2	b	z×φd	H	H>1	D>0	Weight/kg
50	300	215	165	132	36	8×φ25	473	158	300	90
65	340	245	190	152	44	8×φ30	570	190	300	125
80	380	260	205	168	46	8×φ30	630	225	350	170
100	472	300	240	200	48	8×φ34	725	255	350	220
125	500	355	285	238	60	8×φ41	810	275	400	375
150	550	390	318	270	66	12×φ41	915	330	400	650
200	630	480	400	345	78	12×φ48	1150	410	500	840
250	775	580	485	425	88	12×φ54	1416	490	500	1120
300	900	665	570	510	100	16×φ54	1595	570	600	1390