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Pneumatic non-deflecting flat gate valve

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Pneumatic non-deflecting flat gate valve

Universal model: WPZ643F

Nominal diameter: DN50-DN1000mm

Nominal pressure: 1.6MPa-10.0MPa

Applicable temperature: -20℃-120℃

Body material: carbon steel, cast steel

Applicable medium: water, natural gas, petroleum

Transmission mode: hand wheel, electric, pneumatic

Gate valve standard: JB/T5198-1991

Inspection test: JB/T9092-1999

Pressure test: GB/T13927-1992

Flange standard: JB/T79.1-79.2 -1994

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Product description

Pneumatic non-guide plate gate valve is widely used in natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other transportation pipelines, venting systems and steam storage devices, as opening and closing equipment. Especially suitable for long-distance pipelines for natural gas extraction and purification. Among them, the anti-sulfur series products are suitable for long-distance natural gas pipelines containing hydrogen sulfide media, fast flow rate, many impurities, and serious corrosion.

Structural features

1. The valve body has two structures: casting and welding. Among them, the short plate gate valve without diversion hole adopts the welding structure, the structure length is short, and the weight is light, which is especially suitable for devices that require light weight.

2. The structure of the floating valve seat makes the inlet and outlet of the valve can be sealed in both directions.

3. The valve seat is sealed with double seals, which has the function of double sealing. PTFE can remove sand particles and dirt by itself to ensure a good seal.

4. Valves with hard sealing structure, the sealing surface is welded with Co-based hard alloy, and the hardness reaches HRC44-52 to ensure the reliability of the seal.

5. For the valve with diversion hole structure, regardless of the fully open or fully closed state, the gate and the valve seat are always in contact with each other, and the sealing surface is not directly washed by the medium, thereby prolonging the service life.

6. The fire-resistant design of the valve complies with the standards of API 6FA and API 607, corresponding to the valves used in hydrocarbon flow liquids and oil and gas pipelines. The implementation of this standard can meet the fire protection requirements.

7. When the valve is fully opened, the channel is a straight pipeline, and the flow resistance coefficient and pressure loss are small, and the pipeline can be cleaned by a hair ball.

8. The valve is equipped with an automatic pressure relief protection device to ensure safe use.

9. Fully enclosed structure, good protection performance, can be used all day.

Main external connection size

Nominal pressure(PN)	DN (mm)	L	D	D1	D2	D0	f	b	H	H1	Z-φd
WPZ643F
1.6MPa	50	178	165	125	102	250	2	18	584	80	4-18
	65	190	185	145	122	250	2	18	634	95	8-18
	80	203	200	160	138	250	2	20	688	100	8-18
	100	229	220	180	158	300	2	20	863	114	8-18
	125	254	250	210	188	350	2	22	940	132	8-18
	150	267	285	240	212	350	2	22	1030	150	8-22
	200	292	340	295	268	350	2	24	1277	168	12-22
	250	330	405	355	320	400	2	26	1491	203	12-26
	300	356	460	410	378	450	2	28	1701	237	12-26
	350	381	520	470	428	500	2	30	1875	265	16-26
	400	406	580	525	490	305	2	32	2180	300	16-30
	450	432	640	585	550	305	2	40	2440	325	20-30
	500	457	715	650	610	305	2	44	2860	360	20-33
	600	508	840	770	725	305	2	54	3450	425	20-36
	700	610	910	840	795	305	2	42	3960	460	24-36
	800	660	1025	950	900	305	2	42	4550	512	24-39
	900	711	1125	1050	1000	250	2	44	5250	565	28-39
	1000	811	1255	1170	1115	250	2	46	5870	630	28-42
2.5MPa	50	178	165	125	102	250	2	20	584	80	4-18
	65	190	185	145	122	300	2	22	634	95	8-18
	80	203	200	160	138	350	2	24	688	100	8-18
	100	229	235	190	162	350	2	24	863	114	8-22
	125	254	270	220	188	350	2	26	940	132	8-26
	150	267	300	250	218	400	2	28	1030	150	8-26
	200	292	360	310	278	450	2	30	1277	168	12-26
	250	330	425	370	335	500	2	32	1491	203	12-30
	300	356	485	430	395	305	2	34	1701	237	16-30
	350	381	555	490	450	305	2	38	1875	265	16-33
	400	406	620	550	505	305	2	40	2180	300	16-36
	450	432	670	600	555	305	2	46	2440	325	20-36
	500	457	730	660	615	305	2	48	2860	360	20-36
	600	508	845	770	720	305	2	58	3450	425	20-39
	700	610	960	875	820	305	2	50	3960	460	24-42
	800	660	1085	990	930	305	2	54	4550	512	24-48