Model: H42W
Nominal diameter: DN40 ~ 200mm
Nominal: PN1.6 ~ 2.5MPa
Temperature: ≤200
Medium: corrosive medium, weak corrosive
Materials: chrome-nickel stainless steel, titanium, nickel-chromium-molybdenum, titanium, stainless steel
design criteria : API6D, JB / T8937, API594
Structure Length: API594, JB / T8937
Connection Standard: ASME B16.5, GB / T 9113, JB / T79, HG / T 20592
Pressure Test: API 598, GB / T 13927, JB / T 9092

Product description

H42W stainless steel vertical check valve is normally closed, due to the pipeline inlet medium pressure, and overcome the spring resistance to open the valve. When the inlet side of the medium pressure is lower than the outlet end, the spring will push the spool to the valve seat to close the valve to prevent the media countercurrent, it played the role of check. The valve due to the use of spring support spool, so the use of vertical or horizontal installation can be installed.

Material list

model	PN	Working pressure / Mpa	Applicable temperature / ℃	Suitable media	material
					Body, disc	Pilot valve	Sealing surface
H42W-16P	16	1.6	≤200	Corrosive media	Chrome nickel-titanium stainless steel	Chrome nickel-titanium stainless steel	Chrome nickel-titanium stainless steel
H42W-25R	25	2.5		Weak corrosive medium	Chromium nickel molybdenum titanium stainless steel	Chromium nickel molybdenum titanium stainless steel	Chromium nickel molybdenum titanium stainless steel

 

Performance specifications

Technical Parameters		Pressure Level
		16	20	25	32	35	40	45	50	60	70
Working pressure (Mpa)		≤16	≤20	≤25	≤32	≤35	≤40	≤45	≤50	≤60	≤70
Test pressure (M)	strength	24	30	37.5	48	52.5	60	67.5	75	90	105
	seal	17.6	22	27.5	35.2	38.5	44	49.5	55	66	77

The main dimensions 1.6Mpa

model	DN	The main connection size size
		L	D	D 1	D 2	D 6	b	f	f 1	Z-φd	H
H42W-16PH42W-16R	40	200	145	110	85	-	16	2	-	4-18	95
	50	230	160	125	100	-	16	2	-	4-18	105
	65	290	180	140	120	-	18	2	-	4-18	120
	80	310	195	165	135	-	20	3	-	8-18	130
	100	350	215	180	155	-	20	3	-	8-18	140
	125	400	245	210	185	-	22	3	-	8-12	155
	150	480	280	240	210	-	24	3	-	8-23	180
	200	600	335	295	265	-	26	3	-	12-23	215

 

2.5Mpa

model	DN (mm)	Size (mm)
		L 1	L 2	L 3	D	D1	D2	b	f	Z-Φ
H42W-25PH42W-25R	15	-	85	85	95	65	45	16	-	4-Φ14
	20	-	95	95	105	75	55	16	-	4-Φ14
	25	-	100	105	115	85	65	16	-	4-Φ14
	32	-	105	150	135	100	78	16	-	4-Φ14
	40	-	115	160	145	110	88	18	-	4-Φ14
	50	140	125	170	160	125	100	20	3	4-Φ14
	65	160	145	180	180	145	120	22	3	8-Φ18
	80	185	155	200	195	160	135	22	3	8-Φ18
	100	210	210	210	230	190	160	24	3	8-Φ23
	125	-	275	275	275	220	188	28	3	8-Φ25
	150	300	225	300	300	250	218	30	3	8-Φ25
	200	380	380	380	360	310	278	34	3	12-Φ25