Flat gate valve-Oilfield valve series-油田阀厂家-上海冠环阀门制造有限公司

Product Structure Features

1. Casting and welding body.
2. The seat ring is O ring and pre-tightening force structure, bidirectional seal, its torque of open and close is only half of general valve, easy to open and close.
3. PTFE material is inserted in the seat sealing surface, which can obtain dual-seal (PTFE to metal seal and metal to metal seal), and it also could clean dirt on wedge disc.
4. Sealant injection valve specially installed for metal to metal seal valve, sealant flow into sealing face through injection valve and seat to reach zero leakage.
5. The disc for diversion hole valve, whatever in full open or close condition, always keep touching the seat ring to protect the sealing face from being directly eroded by medium, valve use life will be extended.
6. When fully opened, the valve's channel is smooth and linear, with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
7. Stem packing structure has self-sealing capacity, needless of frequent adjusting, easy to open and close and reliable sealing performance.There is an auxiliary sealant injection valve on the position of packing box, absolutely reliable sealing and truly realize zero leakage, its structure design can solve the problem of packing box leaking.
8. When valve closed, automatically discharge high pressure in cavity and ensure safety.
9. Whole sealing structure, well protection and can adapt to all requirements.
10. Indicating arm or sight-glass to show valve open and close status.

Main overall connection dimensions

PN（MPa）	DN （MPa）	SIZE（mm）
PN（MPa）	DN （MPa）	L	D	D1	D2	b	f	z-d	H	H1	E	W
1.6	40	165	150	110	84	18	3	4-18	365	415	90	305
	50	178	165	125	99	20	3	4-18	387	455	105	305
	65	190	185	145	118	20	30	8-18	466	545	133	305
	80	203	200	160	132	20	3	8-18	520	645	156	305
	100	229	220	180	156	22	3	8-18	655	740	182	305
	150	267	285	240	211	24	3	8-22	823	980	269	305
	200	292	340	295	266	24	3	12-22	1010	1210	350	305
	250	330	405	355	319	26	3	12-26	1220	1470	412	305
	300	356	460	410	370	28	4	12-26	1405	1805	505	305
	350	381	520	470	429	30	4	16-26	1580	1950	560	305
	400	406	580	525	480	32	4	16-30	1777	2197	665	305
	500	457	715	650	609	36	4	20-33	2132	2652	817	458
	600	508	840	770	720	38	5	20-36	2545	3201	920	458
2.5	40	165	150	110	84	18	3	4-18	365	415	90	305
	50	178	165	125	99	20	3	4-18	387	455	105	305
	65	191	185	145	118	20	3	8-18	466	545	133	305
	80	203	200	160	132	24	3	8-18	520	645	156	305
	100	229	235	190	156	24	3	8-22	655	740	182	305
	150	267	300	250	211	28	3	8-26	823	980	269	305
	200	292	360	310	274	30	3	12-26	1010	1210	350	305
	250	330	425	370	330	32	3	12-30	1220	1470	412	305
	300	356	485	430	389	34	4	16-30	1405	1805	505	305
	350	381	555	490	448	38	4	16-33	1580	1950	560	305
	400	406	620	550	503	40	4	16-36	1777	2197	665	305
	500	457	730	660	609	44	4	20-36	2132	2652	817	458
	600	508	845	770	720	46	4	20-39	2545	3201	920	458

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