- 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 or 95% of minimum 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
Design | Scored, Forward-acting |
Size Range | 0.5 in to 24 in | DN15 to DN600 |
Burst Pressure Range | 20 to 3000 psig | 1.38 to 206.84 barg |
Burst Pressure Tolerance | ± 2 psig for burst pressures ≤ 40 psig ± 5% for burst pressures > 40 psig |
± 0.15 barg for burst pressure < 1.5 barg stand. ± 10% / red. ± 0.15 barg for burst pressures > 1.5 barg en < 2.76 barg stand. ± 10% / red. ± 5% for burst pressures > 2.76 barg |
Materials | Aluminum 1100, 316/316L SST, Nickel 200/201, Monel® 400, Inconel® 600, Silver |
- Poly SD Series Installation & Maintenance Instructions
- Poly SD Series Installation & Maintenance Instructions (Chinese)
Pressure Relief Installation & Maintenance Videos
Data Sheets & Brochures
- Poly-SD Series Data Sheet
- Poly-SD Series Data Sheet (Europe)
- Poly-SD Series Data Sheet (Spanish)
- Poly-SD Series Data Sheet (Chinese)
- Poly-SD Bolted Type Data Sheet
- Poly-SD Bolted Type Data Sheet (Europe)
- Poly-SD Bolted Type Data Sheet (Spanish)
- Poly-SD Bolted Type Data Sheet (Chinese)
- TQ+ Pretorqueable Series Data Sheet
- TQ+ Pretorqueable Series Data Sheet (Europe)
- TQ+ Pretorqueable Series Data Sheet (Spanish)
- TQ+ Pretorqueable Series Data Sheet (Chinese)
- Tantalum Surface Alloy for Rupture Disc Holders Data Sheet
- Tantalum Surface Alloy for Rupture Disc Holders Data Sheet (Europe)
- Tantalum Surface Alloy for Rupture Disc Holders Data Sheet (Spanish)
- Tantalum Surface Alloy for Rupture Disc Holders Data Sheet (Chinese)
- Double Disc Series Poly-SD and SCRD-V
- Double Disc Series Poly-SD, SRL and SCRD-V (Europe)
- Double Disc Series Poly-SD and SCRD-V (Spanish)
- Double Disc Series Poly-SD and SCRD-V (Chinese)
- Double Disc Rupture Disc Assemblies
- Best Practices for RD/PRV Combinations