Destandard lift check valve

Destandard lift check valve is widely used in nominal pressure PN16-PN40, working temperature -29~550℃ of petroleum, chemical, thermal power station and other working conditions of the pipeline, the applicable medium is: water, oil, steam and so on. Its main function is to prevent the backflow of the medium, to prevent the reverse of the pump and its drive motor, as well as the leakage of the medium in the container. Advantage 1, the lifting check valve is an automatic sealing valve, the …

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Product Description

Its main function is to prevent the backflow of the medium, to prevent the reverse of the pump and its drive motor, as well as the leakage of the medium in the container.

Advantage

1, the lifting check valve is an automatic sealing valve, the valve depends on the medium itself to flow and automatically open and close the valve disc, effectively prevent the backflow of the medium.

2, the valve disc with stainless steel spring device, the valve can be .

3, sealing surface wear resistance, corrosion resistance, friction resistance, long service life.

4, the product structure is reasonable, reliable sealing, excellent performance, beautiful shape.

Technical specification
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Performance specification

Nominal Pressure		PN
Test Pressure	Strength test	1.5PN	MPa
	Sealing test	1.1PN
	Gas seal test	0.6
	—	—
Suitable temp		-196℃~600℃

NO.	Part name	Material
1	Body	GS-C25、1.4301、1.4401
2	Seat	1.4301、Stellite
3	Disc	1.4021、1.4301+Stellite
4	Spring	1.4301、1.4401
5	Copper guide sleeve	Copper alloy、D2、BL2
6	Metal gasket	Stainless steel
7	Cover	GS-25、1.4301、1.4401
8	Nut	ASTM 194-2H、A194-8
9	Double-headed bolt	ASTM 193-B7、A193-B8

Customized size

PN 16
DN	Main connection size
DN	L	D	D1	D2	b	f	H	n-Φd
15	130	95	65	45	16	2	65	4-Φ14
20	150	105	75	58	18	2	70	4-Φ14
25	160	115	85	68	18	2	80	4-Φ14
32	180	140	100	78	18	2	85	4-Φ18
40	200	150	110	88	18	3	90	4-Φ18
50	230	165	125	102	20	3	95	4-Φ18
65	290	185	145	122	20	3	110	4-Φ18
80	310	200	160	138	20	3	130	8-Φ18
100	350	220	180	158	20	3	155	8-Φ18
125	400	250	210	188	22	3	165	8-Φ18
150	480	285	240	212	22	3	215	8-Φ22
200	600	340	295	268	24	3	280	12-Φ22
250	730	405	355	320	26	3	305	12-Φ26
300	850	460	410	378	28	4	330	12-Φ26
350	980	520	470	438	30	4	390	16-Φ26
400	1100	580	525	490	32	4	470	16-Φ30
PN 25
15	130	95	65	45	16	2	65	4-Φ14
20	150	105	75	58	18	2	70	4-Φ14
25	160	115	85	68	18	2	80	4-Φ14
32	180	140	100	78	18	2	85	4-Φ18
40	200	150	110	88	18	3	90	4-Φ18
50	230	165	125	102	20	3	95	4-Φ18
65	290	185	145	122	22	3	110	8-Φ18
80	310	200	160	138	24	3	130	8-Φ18
100	350	235	190	162	24	3	155	8-Φ22
125	400	270	220	188	26	3	165	8-Φ26
150	480	300	250	218	28	3	215	8-Φ26
200	600	360	310	278	30	3	280	12-Φ26
250	730	425	370	335	32	3	305	12-Φ30
300	850	485	430	395	34	4	330	16-Φ30
350	980	555	490	450	38	4	390	16-Φ33
400	1100	620	550	505	40	4	470	16-Φ36
PN 40
15	130	95	65	45	16	2	65	4-Φ14
20	150	105	75	58	18	2	70	4-Φ14
25	160	115	85	68	18	2	80	4-Φ14
32	160	140	100	68	18	2	85	4-Φ18
40	180	150	110	78	18	3	90	4-Φ18
50	230	165	125	102	20	3	95	4-Φ18
65	290	185	145	122	22	3	110	8-Φ18
80	310	200	160	138	24	3	130	8-Φ18
100	350	235	190	162	24	3	155	8-Φ22
125	400	270	220	188	26	3	165	8-Φ26
150	480	300	250	218	28	3	215	8-Φ26
200	600	375	320	285	34	3	280	12-Φ30
250	730	450	385	345	38	3	305	12-Φ33
300	850	515	450	410	42	4	330	16-Φ33
350	980	580	510	465	46	4	390	16-Φ36
400	1100	660	585	535	50	4	470	16-Φ39

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