Qdy421f LPG Emergency Shut-off Valve

• Customized: Customized
• Certification: ISO, API, CE
• Power: Pneumatic
• Pressure: Medium Pressure
• Brand: Xuan Cheng
• Work Temperature: Normal Temperature
• Model NO.: QDY421F
• Material: Carbon Steel
• Medium: Water, Steam, Gas, etc
• Structure: Through
• Connection Mode: Flange
• Seal: Hard Seal
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: xc
• Origin: China
• HS Code: 8412310090
• Production Capacity: 10000

Product Description

Hydraulic emergency cut off valve
using the hand pump handle to do reciprocating action, so that the pressure increases to open the emergency cut off valve, the medium can pass, such as fire or other emergency, the pressure relief valve of the hand pump is opened, the oil pressure system quickly depresses, so that the cut off valve is immediately closed.
The structure of the hydraulic emergency cut off valve is equipped with a low melting point (fusible alloy) plug, in the event of an accident due to the temperature increase ±70ºC melting pressure relief to quickly close the inlet and outlet of the tank to ensure the reliability of the tank system.



The main shape connection size of the hydraulic emergency cut off valve:

DN	L	H	D	D1	D2	b	f	z-d
15	130	215	95	65	45	16	2	4-14
20	150	255	105	75	55	16	2	4-14
25	160	285	115	85	65	16	2	4-14
32	180	300	135	100	78	18	2	4 to 18
40	200	320	145	110	85	18	2	4 to 18
50	230	380	160	125	100	20	3	4 to 18
65	290	420	180	145	120	22	3	8 to 18
80	310	450	195	160	135	22	3	8 to 18
100	350	520	230	190	160	24	3	8-23
125	400	558	270	220	188	28	3	8-23
150	480	750	300	250	218	30	3	8-25
200	600	950	360	310	278	34	3	12-25
250	650	1050	425	370	322	36	3	12-30
300	750	1120	485	430	390	40	3	16 and 30

Hydraulic emergency cut off valve product use:
hydraulic emergency cut off valve is used in liquefied petroleum gas large storage tank, pipeline system valve accessories. Mainly used in the emergency can quickly close the inlet and outlet of the storage tank at a far place, in the emergency cut off valve oil pressure pipe road or pressure pipe road with low melting point material valve plug, in the event of an accident due to temperature rise easy to melt pressure relief to quickly close the inlet and outlet of the storage tank to ensure the reliability of the liquefied petroleum storage system.