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DA-25
Feilun
Cryogenic Safety Valve
Nominal Pressure：4.0MPa
Design Temperature：-196℃~+80℃
Suitable Media：LNG、LO2、LN2、LAr、CO2
Coeffcient of discharge：0.29
Body：CF8
Spring：S30210
Main Sealing：PCTFE+MoS2
(Micro-opening Type)
Master parameter list
Type | Major Overall & Connection Dimensions(mm) | Setting Pressure(MPa) | ||||||
H | H1 | M1 | M2 | L | D | DO | ||
DA-25 | 140 | 82 | M36*2 | M33*2 | 40.5 | ∅53 | ∅20 | 0.4~0.94 |
DA-25A1 | 0.95~2.1 | |||||||
DA-25A2 | 2.11~2.59 | |||||||
DA-25A3 | 2.5~3.6 | |||||||
DA-25A4 | 0.2~0.39 | |||||||
Micro-open safety valve refers to a type of safety valve with relatively small disc opening height and discharge amount. Specifically, the specified opening height of the valve disc h is between D1/40 and D2/20 (D1 is the diameter of the valve seat throat).
Full-opening safety valve refers to a safety valve with an opening height greater than or equal to 1/4 of the diameter of the flow channel. The operating characteristics of this safety valve belong to the two-stage acting safety valve
Cryogenic Safety Valve
Nominal Pressure：4.0MPa
Design Temperature：-196℃~+80℃
Suitable Media：LNG、LO2、LN2、LAr、CO2
Coeffcient of discharge：0.29
Body：CF8
Spring：S30210
Main Sealing：PCTFE+MoS2
(Micro-opening Type)
Master parameter list
Type | Major Overall & Connection Dimensions(mm) | Setting Pressure(MPa) | ||||||
H | H1 | M1 | M2 | L | D | DO | ||
DA-25 | 140 | 82 | M36*2 | M33*2 | 40.5 | ∅53 | ∅20 | 0.4~0.94 |
DA-25A1 | 0.95~2.1 | |||||||
DA-25A2 | 2.11~2.59 | |||||||
DA-25A3 | 2.5~3.6 | |||||||
DA-25A4 | 0.2~0.39 | |||||||
Micro-open safety valve refers to a type of safety valve with relatively small disc opening height and discharge amount. Specifically, the specified opening height of the valve disc h is between D1/40 and D2/20 (D1 is the diameter of the valve seat throat).
Full-opening safety valve refers to a safety valve with an opening height greater than or equal to 1/4 of the diameter of the flow channel. The operating characteristics of this safety valve belong to the two-stage acting safety valve
