Sandwich Type Check Valves

Product Detail

As one of the leading sandwich type check valves manufacturers and suppliers in China and equipped with a productive factory, Shanghai Hugo Valve Co.,Ltd is always at your service.

Sandwich type check valves Description
1. Sandwich type check valves is the shortest types among all the check valves, which is most suitable for the valve locations which have small spaces and spaces limitations.
2. The disc of sandwich swing check valves can be closed rapidly and it's water hammer pressure is small.
3. Flow port of sandwich type single disc swing check valves is smooth, so the flow resistance force will be small.
4. Impact structure, long longevity and reliable performance.
5. The sandwich type swing check valves' function in the water pump water supply system is to prevent the water pump impellers from the impact force of high pressure water back-flow, because of some reason, if the water pump failed to work, at this time the pressure inside the pump will disappear, the high pressure water which connected with the water pump exit will flow back to the water pump. If there is a check valve installed on the exit of water pump, the check valve will close rapidly when the pump failed to work, then will prevent the high pressure water flow back to water pump.
valves materials of construction



Body Materials: LCB,LCC,WCB, 304S.S., 316 S.S.
Spring Materials: LCB,LCC,WCB, 304S.S., 316 S.S.
Disc Materials: LCB / LCC / WCB + stellite, 304S.S., 316 S.S.
Stem Material : 420 S.S., LF2, F6, F304, F316
Operation : Manual
Applicable standard
Size Range: 2''~25''(DN50~DN500)
Pressure: PN2.0 - PN11.0 Mpa, Class 150 - Class 600
Standard : API 594 / API6D, ANSI, DIN, JIS
End Connection: Wafer
Operate: Automatic

                        

Dimensions for reference

Size	A	B	C
(DN)			PN10	PN16	BS10D	BS10E	ANSI #150
50	30	19	108	108	97	97	104
65	40	19	128	128	110	110	123
80	52	19	143	143	129	129	136
100	71	19	163	163	161	161	174
125	93	19	193	193	193	193	196
150	114	19	219	219	218	218	221
200	157	28.5	274	274	274	272	273
250	195	28.5	329	329	335	335	339
300	230	38	379	385	385	383	409
350	270	44.5	438	444	446	446	449
400	310	51	489	496	196	196	512
450	360	60.5	538	555	559	559	545