DONADONSDD SCR rupture discs for aseptic applications

Model SCR
Materials Stainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
Gaskets PTFE
Dimensions DN 1”(25) - DN 8”(200)
Rupture pressure 0,3 bar g - 10 bar g (depending on material and diameter)
Tolerance from +/- 5 % to +/- 20%
Operating temperature Gaskets in PTFE (max 265°C)
Operating margin 90% - Able to reach 95% depending on the conditions of service
Fragmentation No
Use under valve Yes
Corrosion resistance Very good
Linings Yes
Container HTC
Rupture indicators Electric
ATEX EX II 2 GD Certification Available
PED Certification [CE STAMP] Available
3-A Compliance Available

DonadonSDD SCR rupture discs obtained with Nanoscored Technology is a compression-loaded disc or reverse-acting disc with micro-scored calibrated sections opening in petals, featuring 4, 6 or more radial scoring. This disc has been designed to meet the high quality standards required by 3-A SSI, whose aim is to ensure public health through hygiene equipment. PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A, and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection).

The SCR model is particularly suitable for the Pharmaceutical, Food, and Biotechnology industries. This disc is entirely made of AISI 316L stainless steel (or other alloys upon request of the client). It’s smooth surface makes it particularly suitable for C.I.P. and S.I.P. treatments to maintain aseptic conditions.

The SCR rupture disc is used with gas or liquids only (with the presence of a gas cushion), also under cycling and pulsating conditions, while safety is never affected.

The SCR disc reacts to overpressures in just a few milliseconds without fragmentation. The PTFE coating can ensure additional protection.  Moreover, SCR discs can be subject to absolute vacuum conditions without the need for supports.