PN Casting Steel Lift Check Valve

Design Specifications

Design standards	Structure length	Flange connection	Test and inspection
GB/T12235	GB/T12221	GB/T9124.1,JB/T79,HG/T20592	GB/T26480

 

Pressure Test

Pressure rate	Shell test (Mpa)	Sealing test (Mpa)	Temperature	Suitable medium
1.6	2.4	1.76	≤600℃	Water,Oil,Gas
2.5	3.75	2.75
4	6	4.4
6.3	9.45	6.93
10	15	11
16	24	17.6

 

Material of Main Parts

NO.	Part Name	Part Material
1	Body	WCB,WC6,WC9,C5 CF8,CF8M,CF3,CF3M
2	Disc	25,1Cr13,2Cr131Cr18Ni9Ti OCr18Ni12Mo2TT 20cr1Mo1V,25CT2Mo
3	Stem	1Cr13,2Cr13,1Cr18Ni9Ti,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV
4	Flat cover	25,1Cr13,2Cr131Cr18Ni9Ti OCr18Ni12Mo2TT 20cr1Mo1V,25Cr2Mo
5	Gaske	Flexible graphite &stainless steel
6	Bonnet	WCB,WC6,WC9,C5,CF8,CF8M,CF3,CF3M
7	Stud	35CrMoA,OCr18Ni9,0Cr17Ni12Mo2,25Cr2MoV
8	Nut	45,35 CrMoA
9	Packing	Flexible graphite,OCr18Ni9,0Cr17Ni12Mo2,25Cr2MoV
10	Gland cover	r1320r13
11	Gland flange	WCB,CF8,CF8M,CF3,CF3M,iCr18Ni9TLOCr18Ni12Mo2Ti
12	Yoke nut	Copper alloy
13	Hand whee	KTH330,QT400-17

 

PN16 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	230	165	125	102	18	4-18
65	290	185	145	122	18	8-18
80	310	200	160	138	20	8-18
100	350	220	180	158	20	8-18
125	400	250	210	188	22	8-18
150	480	285	240	212	22	8-22
200	600	340	295	268	24	12-22
250	1050	405	355	320	26	12-26
300	650	460	410	378	28	12-26
350	1150	520	470	428	30	16-26
400	750	580	525	490	32	16-30
450	850	640	585	550	40	20-30
500	950	715	650	610	44	20-33
600	1350	840	770	725	54	20-36

 

PN25 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	230	165	125	102	20	4-18
65	290	185	145	122	22	8-18
80	310	200	160	138	24	8-18
100	350	235	190	162	24	8-22
125	400	270	220	188	26	8-26
150	480	300	250	218	28	8-26
200	600	360	310	278	30	12-26
250	650	425	370	335	32	12-30
300	750	485	430	395	34	16-30
350	850	555	490	450	38	16-33
400	950	620	550	505	40	16-36
450	1050	670	600	555	46	20-36
500	1150	730	660	615	48	20-36
600	1350	845	770	720	58	20-39

 

PN40 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	230	165	125	102	20	4-18
65	290	185	145	122	22	8-18
80	310	200	160	138	24	8-18
100	350	235	190	162	24	8-22
125	400	270	220	188	26	8-26
150	480	300	250	218	28	8-26
200	600	375	320	285	34	12-30
250	650	450	385	345	38	12-33
300	750	515	450	410	42	16-33
350	850	580	510	465	46	16-36
400	950	660	585	535	50	16-39
450	1050	685	610	560	57	20-39
500	1150	755	670	615	57	20-42
600	1350	890	795	735	72	20-48

 

PN64 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	300	180	135	102	26	4-22
65	340	205	160	122	26	8-22
80	380	215	170	138	28	8-22
100	430	250	200	162	30	8-26
125	500	295	240	188	34	8-30
150	550	345	280	218	36	8-33
200	650	415	345	285	42	12-36
250	775	470	400	345	46	12-36
300	900	530	460	410	52	16-36
350	1025	600	525	465	56	16-39
400	1150	670	585	535	60	16-42

 

PN100 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	300	195	145	102	30	4-26
65	340	220	170	122	34	8-26
80	380	230	180	138	36	8-26
100	430	265	210	162	40	8-30
125	500	315	250	188	40	8-33
150	550	355	290	218	44	12-33
200	650	430	360	285	52	12-36
250	775	505	430	345	60	12-39
300	900	585	500	410	68	16-42
350	1025	655	560	465	74	16-48
400	1150	715	620	535	78	16-48

 

PN160 Main External Dimension(Unit:mm)

DN	L	D	D1	D2	b	z-d
50	300	215	165	132	36	8-25
65	340	245	190	152	44	8-30
80	380	260	205	168	46	8-30
100	430	300	240	200	48	8-34
125	500	355	285	238	60	8-41
150	550	390	318	270	66	12-41
200	650	480	400	345	78	12-48
250	750	580	485	425	88	12-54
300	900	665	570	510	100	16-54