Poly-SD Rupture Disc

Poly-SD Rupture Disc

Scored, Forward-acting

The versatile Poly-SD rupture disc can be used in liquid, vapor and two phase flow and is available in a large variety of materials. Specifically designed to help prevent material buildup on the rupture disc, the Poly SD is ideal for polymerization processes.

Product Detail

  • Provides pressure relief at or below its rated burst pressure, even if damaged or installed upside down
  • Different scoring configurations offer optimized performance over a wide range of pressures.
  • Operates in liquid, vapor and multi-phase media applications
  • Can be operated as high as 90% of rated burst pressure
  • Can withstand full vacuum without vacuum support, in a wide range of pressures
  • Non-fragmenting
  • Effective in VALVEGUARD protection of expensive Pressure Relief Valves and Safety Relief Valves



DesignScored, Forward-acting

38 – 206.8 BARG

Size Range.5 – 24 in15 – 600 mm
Burst Pressure Range20 – 3000 PSIG1.38 – 206.8 BARG1.40 – 210.92 KG/CM2
Tolerances±5% except 40 PSIG/2.76BARG and below which is ±2 PSIG/.1 BARG
POLY-SD Rupture Disc Chart

POLY-SD Rupture Disc Chart


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