900 Series DIN standard Pressure Safety Valve

 

900 Series DIN standard Safety Valve are mainly applied to the industries such as petroleum & Natural gas, Chemistry, Electric, Metallurgy & Burning gas. As the super-pressure protecting equipment, It has following advantages: High precision of action, Good recycling function, Turning back to seat fast, Easy operating and maintaining, etc.

 

901 Type

Closed Cap

Closed top Cover

With Level

 

902 Type

Opening Cap

Opening Top Cover

With Level

 

911 Type

Closed Cap

Gas-Sealed Top Cover

Without Level

 

912 Type

Closed Cap

Opening Top Cover

With Level

  

Type	Nominal Pressure	Body Material	Nominal Diameter	Working Temp.
901/902/911/912	PN40/16	1.0619+N	DN20/32-DN150/250	-10C～450C
901/911	PN40/16	1.4408	DN20/32-DN100/150	-60C～400C

 

 

DN	20/32	25/40	32/50	40/65	50/80	65/100	80/125	100/150	120/200/	150/250
Throat Diameter do(mm)	18	22	29	36	45	58	72	80	100	125
Orifice Area Ao(mm)	254	398	661	1018	1590	2688	4072	6362	8825	12266
Weight (Kg)	8.5	10	14	20	28	40	53	80	125	165

 

901, 902, 911, 912 Type Safety Valve
DN×DN1		20/32	25/40	32/50	40/65	50/80	65/100	80/125	100/150	120/200/	150/250
D	PN16	105	115	140	150	165	185	200	220	250	285
	PN40								235	220	300
K	PN16	75	85	100	110	125	145	160	180	210	240
	PN40								190	220	250
B		20	20	20	21	22	24	26	28	31	34
D1	PN16	140	150	165	185	200	220	250	285	340	405
K1		100	110	125	145	160	180	210	240	295	355
B1		19	19	20	20	20	20	22	22	27	29
L		85	100	110	115	120	140	160	180	200	220
L1		95	105	115	140	150	170	195	220	250	285
≈H		298	311	315	355	405	555	580	690	845	890
Vent(with plug)		G3/8”			G1/2”

 

Full lift safety valve opening height is more than one fourth times of the flow diameter. it has an advantage of discharging greatly .

 

A48 Type Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc.,  which the working medium is  leass than 350C.

 

A48SB High temperature and high pressure safety valve

These safety valves are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425C and with WC6 Material type are less than 500C and WC9 Material Type are less than 550C.

Full lift safety valve opening height is more than one fourth times of the flow diameter. it has an advantage of discharging greatly .

 

A48 Type Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc.,  which the working medium is  leass than 350C.

 

A48SB High temperature and high pressure safety valve

These safety valves are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425C and with WC6 Material type are less than 500C and WC9 Material Type are less than 550C.