ZDZ47F gas flat gate valve

NegotiableUpdate on 04/01

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Overview

ZDZ47F gas flat gate valve

Product Details

Shanghai Wilton Valve Co., Ltdmain products(ZDZ47F Gas Flat Gate Valve)Also domestically(Gate valve)One of the producers. Business scope of the company: production, processing, and sales of valves, pipe fittings, and fluid equipment, sales of pipeline fittings, building materials, hardware and electrical equipment, and automatic control equipment, engaged in import and export business of goods and technology! Welcome new and old customers to call or write to us. We will wholeheartedly provide you with satisfactory service!

ZDZ47F Gas Flat Gate Valve Product Overview:

The valve body adopts a cast structure.
Valve seat adoptsOThe floating valve seat structure with a sealing ring and pre tightening force ensures bidirectional sealing of the valve inlet and outlet; And the opening and closing torque of this structure is only the same as that of ordinary valves1/2It can easily open and close valves.
The valve seat is embedded on the sealing surfacePTFE, possessingPTFEDouble sealing of metal and metal to metal,PTFEThe function of the sealing surface is to simultaneously remove dirt from the gate.
The gate of the valve, whether fully open or fully closed, always matches the sealing surface, and the sealing surface is protected from direct flushing by the medium, thereby extending its service life.
When the valve is fully open, the channel is smooth and straight, the flow resistance coefficient is extremely small, there is no pressure loss, and the pipeline can be cleaned by passing a rough ball.
When the valve is closed, it can automatically release the high pressure inside the chamber(Refer to the working principle diagram for details)Ensure safe use.
The use of a closed gear rotating opening and closing indicator mechanism can clearly reflect the opening and closing status of the valve for a long time.
The outer surface of the directly buried valve door is treated with epoxy coal tar anti-corrosion, which can have the same service life as the pipeline.

Performance Specification for Gas Flat Gate Valve Products

pressure rating		Normal temperature test pressure(MPa)				Temperature	Applicable Medium
pressure rating		Shell Test	Left seal	Right seal	Low pressure gas seal	Temperature	Common	Sulfur resistant type
nominal pressure(MPa)(PN)	1.6	2.4	1.76	1.76	0.6	-29～121℃Or according to user requirements	Non corrosive media such as oil, natural gas, water, etc	containH2S、Co2Corrosive media such as oil, natural gas, water, etc
	2.5	3.75	2.75	2.75	0.6
	4.0	6.0	4.4	4.4	0.6
	6.4	9.6	7.04	7.04	0.6
Pound level(Lb)(Class)	150	3.0	2.2	2.2	0.6
Pound level(Lb)(Class)	300	7.5	5.5	5.5	0.6

Working principle of gas flat gate valve

1When the internal pressure of the valve is equivalent(1)The gate is in a closed state, and the valve seat surfacePTFEThe sealing ring forms an initial seal, and each time the valve is opened or closed, the valve seat ring can clean both sides of the gate(As shown in the picture1)
2When applying management pressure to valves（2）The pressure acts on the gate, forcing it to approach the outlet valve seatPTFERing, compress it until the gate stops on the steel valve seat, thus forming a double seal. FirstlyPTFEFor metal sealing, followed by metal to metal sealing, the valve seat is also firmly picked up in the groove, at this point（3），OThe ring prevents any flow of rear media. (As shown in the picture)2）
3After the valve body pressure is released, an inlet seal is formed, and the pipeline pressure acts on the inlet valve seat（4）Move it towards the gate, formingPTFESealing of metals, at the same time,OCircle shape（5）Form a tight seal with the valve seat groove. (As shown in the picture)3）
4The valve automatically releases excess pressure. When the valve body pressure is greater than the pipeline pressure, due to thermal expansion, the inlet valve seat is pushed towards the groove, and the excess pressure inside the valve body is released into the pipeline between the valve seat and the gate. (As shown in the picture)4)

Main parameters of gas flat gate valve

Basic model	ZDZ47F、ZDZ67F、ZDZ447F、ZDZ467F、ZDZ547F、ZDZ567F、ZDZ9B47F、ZDZ9B67F
Pressure level range	PN0.6～6.4MPa(Class150～900)
Diameter range	DN25～1000mm(1'～40')
Drive mode	Handwheel drive		Gear driven, pneumatic, hydraulic, electric
scope of application	Class 150～300 (PN1.6～4.0)	Class400 (PN6.4)	Class 150～900
	1'～40' (DN25～1000mm)	1'～28' (DN25～700mm)	1'～40' (DN25～1000mm)

Gas flat gate valve products adopt standard

design basis		GB	API
Design standards		JB/T5298	API 6D ASME B 16.34
Structure length	Flange connection	GB/T 12221 JB/T 5298	API 6D ASME B 16.10
	welding	GB/T 15188.1
Connecting flange		GB/T 9113 JB/T 79	ASME B16.5 MSS SP44
Welding end		GB/T 12224	ASME B 16.25
Testing and Inspection		JB/T 9092	API 6D API 598

Main component materials of gas flat gate valve

Serial Number	Part name	material
Serial Number	Part name	GB
1	Discharge plug	25
2	valve body	WCB
3	Ram	16Mn+ENP
4	valve seat	16Mn
5	ORing	NBR
6	sealing ring	PTFE
7	stem nut	ZQAL9-4
8	valve stem	1Cr13
9	shim	Flexible graphite+1Cr18Ni9
10	valve cover	WCB
11	Double headed stud	35CrMo
12	nut	45
13	ORing	NBR
14	bearing	componentPackage
15	split collar	45
16	Hexagon socket head cap screw	35
17	key	45
18	switch indicator	PTFE+1Cr18Ni9
19	handwheel	Q235A
20	nut	35

Serial Number	Part name	material
Serial Number	Part name	GB
1	Discharge plug	25
2	valve body	WCB
3	Ram	16Mn+ENP
4	sealing ring	PTFE
5	valve seat	16Mn
6	ORing	NBR
7	stem nut	ZQAL9-4
8	valve stem	1Cr13
9	ORing	NBR
10	valve cover	WCB
11	ORing	NBR
12	bearing	component
13	split collar	45
14	Hexagon socket head cap screw	45
15	Double headed stud	35CrMo
16	nut	NBR-18
17	key	45
18	switch indicator	component

Main external dimensions of gas flat gate valve

model: (K)Z4(5、9B）4(6)7F　　PN0.4、0.6、1.0、1.6、2.5MPa　　PN2.0MPa(Class150)

DN(mm)	NPS(in)	flange	Butt welding	hand movement			Tooth movement			Toothed device	electric			motor unit
DN(mm)	NPS(in)	L	L1	H	H1	D0	H	H1	D0	Toothed device	H	H1	D0	motor unit
25	1	165	-	85	228	180	-	-	-	-	-	-	-	-
32	11/4	165	-	103	231	180	-	-	-	-	-	-	-	-
40	11/2	178	-	115	240	250	-	-	-	-	-	-	-	-
50	2	178	216	130	255	250	-	-	-	-	-	-	-	-
65	21/2	190	241	160	355	300	-	-	-	-	-	-	-	-
80	3	203	283	180	360	300	-	-	-	-	-	-	-	-
100	4	229	305	214	400	300	-	-	-	-	-	-	-	-
125	5	254	381	257	460	350	-	-	-	-	-	-	-	-
150	6	267	403	300	500	350	-	-	-	-	-	-	-	-
200	8	292	419	388	570	350	-	-	-	-	-	-	-	-
250	10	330	457	475	680	400	475	700	350	0type	475	710	500	SMC-03
300	12	356	502	547	750	450	547	870	350	0type	547	880	305	SMC-00
350	14	381	572	625	875	450	625	995	450	1type	625	1015	305	SMC-00
400	16	406	610	712	1000	500	712	1120	450	1type	712	1130	305	SMC-00
450	18	432	660	785	1130	500	785	1280	450	1type	785	1360	305	SMC-0
500	20	457	711	880	1200	600	880	1350	450	1type	880	1430	305	SMC-0
600	24	508	813	1045	1420	800	1045	1570	500	2type	1045	1650	305	SMC-1
700	28	610	914	1190	1650	800	1190	1800	500	2type	1190	1910	305	SMC-1
800	32	660	914	1360	1880	1000	1360	2040	500	2type	1360	2140	305	SMC-1
900	36	771	1016	1510	2100	1000	1510	2280	600	3type	1510	2390	458	SMC-2
1000	40	811	-	1715	2300	1200	1715	2480	600	3type	1715	2590	458	SMC-2

model: (K)Z4(5、9B）4（6）7F　　PN4.0MPa　PN5.0MPa(Class300)

DN(mm)	NPS(in)	flange		Butt welding	hand movement			Tooth movement			Toothed device	electric			motor unit
		L		Butt welding	hand movement			Tooth movement			Toothed device	electric
		GB	API	L1	H	H1	D0	H	H1	D0		H	H1	D0
25		165	165	165	85	238	180	-	-	-	-	-	-	-	-
32		178	178	178	103	238	180	-	-	-	-	-	-	-	-
40		190	190	190	115	245	250
50		216	216	216	130	265	250
65		241	241	241	160	365	300
80		283	283	283	180	375	300
100		305	305	305	214	420	300
125		381	381	381	257	480	350
150		403	403	403	300	520	350
200		419	419	419	388	590	350	388	710	350	0type	388	720	305	SMC-00
250		457	457	457	475	700	400	475	820	350	0type	475	830	305	SMC-00
300		502	502	502	547	780	450	547	900	450	1type	547	910	305	SMC-0
350		572	762	762	625	895	450	625	1015	450	1type	625	1095	305	SMC-0
400		610	838	838	712	1020	550	712	1150	450	1type	712	1230	305	SMC-0
450		660	914	914	785	1150	700	785	1300	500	2type	785	1400	305	SMC-1
500		711	991	991	880	1220	800	880	1370	500	2type	880	1470	305	SMC-1
600		787	1143	1143	1045	1440	1000	1045	1620	600	2type	1045	1730	305	SMC-1

model: (K)Z4(5、9B）4(6)7F PN6.4MPa (Class400)

DN(mm)	NPS(in)	flange	Butt welding	hand movement			Tooth movement			Toothed device	electric			motor unit
DN(mm)	NPS(in)	L	L1	H	H1	D0	H	H1	D0	Toothed device	H	H1	D0	motor unit
50	2	216	250	158	265	300	-	-	-	-	-	-	-	-
65	21/2	241	280	190	365	300	-	-	-	-	-	-	-	-
80	3	283	310	225	375	350	-	-	-	-	-	-	-	-
100	4	305	350	255	420	350	-	-	-	-	-	-	-	-
125	5	381	400	275	480	400	-	-	-	-	-	-	-	-
150	6	403	450	330	520	400	-	-	-	-	-	-	-	-
200	8	419	550	410	590	500	388	710	350	0type	388	720	305	SMC-0
250	10	457	650	490	700	500	475	820	350	0type	475	830	305	SMC-0
300	12	502	750	570	780	600	547	900	450	1type	547	910	305	SMC-0
350	14	762	850	625	910	600	625	1015	450	1type	625	1095	305	SMC-1
400	16	838	950	735	1020	700	712	1150	450	1type	712	1230	305	SMC-1

Ordering process:
1. Fax the customer's purchase list, call for consultation, or email shweierdun@163.com
2. Received the customer's purchase list and provided the customer with valve model selection and quotation (price list)
3. Specific agreement: delivery time, special requirements, and other matters

Ordering Notice:
1. If the customer has special requirements for the product, the following instructions must be provided in the order contract:
a. Structural length;
b. Connection form;
c. Nominal diameter;
d. Product usage medium, temperature, and pressure range;
e. Testing, inspection standards, and other requirements.
2. Our factory can configure various driving devices according to specific customer requirements.
3. When the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model, and sign the contract under the condition of mutual understanding between the supply and demand parties.
4. Futures and ordering customers are requested to first call and provide detailed information on the required valve model, specifications, quantity, delivery time, and location. And 30% of the total contract amount shall be prepaid, and the supplier shall prepare materials for production.