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First, Z43Y high-pressure flat gate valve product introduction

This series of products adopt the new balanced floating seal structure, which is suitable for the opening and closing and adjusting device of control medium, such as water, oil, natural gas and so on, whose pressure is not more than 40MPa and whose temperature is not higher than 120 ℃. The structure of the product is novel in design It is an ideal new type of equipment for petroleum industry with proper material selection, rigorous testing, light operation and strong anti-corrosion, wear-resistant and erosion-resistant properties.

Second, Z43Y high-pressure plate valve structure characteristics and working principle
1, the use of floating seat, two-way opening and closing, sealing and reliable, opening and closing flexible.
2, the lower part of the gate opened a diversion hole, and to give precision-oriented, while the seal is spray-welded cemented carbide, erosion-resistant.
3, the valve body carrying capacity is high, the channel is straight-through, fully open, and the gate diversion hole through and straight pipe similar to the flow resistance is small. Stem composite filler, multiple seals, making the seal reliable, small friction.
4, close the valve, turn the hand wheel clockwise, the gate moved down to the bottom, due to the role of media pressure, the inlet seal seat to the gate direction. A larger seal than the pressure, thus forming the first seal. At the same time, the gate pressure to the outlet seal seat, a double seal.
5, due to the use of double seal, it can not affect the pipeline work more vulnerable parts. This is our factory product priority over similar products at home and abroad an important feature.
6, open the gate, turn the hand wheel counterclockwise, the gate up, diversion hole and channel hole through. With the rise of the gate, the through hole gradually increases to the limit position, the guide hole coincides with the passage hole, then fully open.

Third, Z43Y high-pressure flat gate valve performance specifications

Pressure level (Mpa)	16	20	25	32	35	40
Working pressure (Mpa)	≤16	≤20	≤25	≤32	≤35	≤40
Strength test (Mpa)	24	30	37.5	48	52.5	60
Seal test (Mpa)	17.6	22	27.5	35.2	38.5	44

Fourth, Z43Y high-pressure plate valve shape and connection dimensions

Nominal pressure (MPa)	Nominal diameter (mm)	Size (mm)
Nominal pressure (MPa)	Nominal diameter (mm)	D	G	C	L	E	H	W	L0
16 ~ 20	40	36	43	64	210	82	356	240	430
	50	46	52	70	242	100	379	260	488
	65	58	63	89	260	125	402	280	573
	80	72	78	108	310	157	475	320	618
	100	90	95	130	450	183	548	350	693
	125	110	115	145	490	230	580	400	805
	150	135	150	195	550	262	660	450	901
25	40	36	43	64	210	82	356	240	430
	50	46	56	76	310	120	379	260	488
	65	53	67	89	340	132	402	280	573
	80	65	86	114	380	157	475	320	618
	100	80	101	133	450	183	548	350	693
	125	110	115	145	490	230	580	400	805
	150	130	167	219	620	272	793	450	901
35	40	36	43	64	210	82	356	240	430
	50	46	56	76	300	123	379	260	488
	65	53	67	89	340	136	402	280	573
	80	65	86	114	380	162	475	320	618
	100	80	101	133	450	188	548	350	693
	125	110	115	145	490	230	580	400	805
	150	130	167	219	620	278	793	450	901

The next：Welded high-pressure flat gate valve

The previous：Pneumatic parallel cut off valve

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