Donadonsdd爆破片、Donadonsdd复合式正拱型爆破片、DCD爆破片

唐纳森SDD DCD型爆破片是一种复合式正拱型爆破片,由三个部分组成:

  • 开槽穿孔金属层

  • 密封膜片(通常采用PTFE,也可选用多种其他金属或非金属材料)

  • 保护层

该型号特别适用于静态工况下的气体和液体介质,在低压领域表现卓越。DCD爆破片能在数毫秒内实现全开式响应,且完全无碎片产生,因此是阀门保护的理想之选。为应对真空或背压工况,可配备专用支撑件。

此外,复合式唐纳森SDD爆破片还能提供压力与真空的双重同步保护。

ModelDCD
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium
MembranePTFE, PFA, Stainless steel, Aluminium
DimensionsDN ½”(15) – DN 40”(1000)
Rupture pressure0.01 – 110 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperaturemembrane in PTFE/PFA max 265°C, up to 480°C (depending on the membrane)
Operating marginup to 80%
Vacuum supportAvailable
FragmentationNo (membrane only)
Use under valveYes
Corrosion resistanceGood – can be protected with a PTFE membrane
LiningsYes
ContainerHI/AHI/PHI/FHTC
Rupture sensorElectricalMagneticInductiveOptical
PED Certification [CE STAMP]Available
ATEX EX II 2 GD CertificationAvailable

Donadonsdd爆破片Donadonsdd复合式正拱型爆破片、DCD爆破片


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