The STA-SAF System
12Pages

Reverse Buckling Technology The Sta-Saf® System BS&B SAFETY SYSTEMS, L.L.C. BS&B SAFETY SYSTEMS, LTD.. 77-4001, Section D Rev. 1 Visit our websites at www.bsbsystems.com and www.bsb.ie for the most complete, up-to-date information.

Microsoft Word - Document1 tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:10.00pt "Arial", sans-serif; } .font3 { font:22.00pt "Impact", sans-serif; } .font4 { font:33.00pt "Impact", sans-serif; } .font5 { font:11.00pt "Times New Roman", serif; } Standard Features of the Sta-Saf Family Sta-Saf8 Rupture Disks: 90% or greater operating ratio Vacuum rsistant Solid mtal construction enabling optimum leak tightness Designed for non-fragmentation Recommended for isolation of pressure relief...

Sta-Saf® Rupture Disk Material Options Standard materials and their maximum recommended service temperatures for the Sta-Saf range of Rupture Disks are: Operating Pressure Ratio Sta-Saf reverse buckling Rupture Disks can be operated to 90% of their marked burst pressure (or to 95% of their minimum burst pressure) for burst pressures of 40 psi (2.76 bar) and higher. For lower burst pressures, the operating pressure ratio is 90% of minimum burst pressure. For applications that demand a closer relationship between operating pressure and burst pressure, select type Sigma EXLTM (see catalog...

Pressure/Temperature Relationship The burst pressure of all Rupture Disks is partially determined by the physical properties of the material employed. Tensile strength varies with temperature, which leads to variation in burst pressure. Reverse buckling technology is the least sensitive to temperature variations and is used by all Sta-Saf Rupture Disks. However, for the highest accuracy of performance, BS&B certifies Sta-Saf Rupture Disks by testing at the users’ chosen burst temperature. Where operating pressure and temperature may rise rapidly, the user should carefully select the...

Installation The Sta-Saf family of Rupture Disk devices is designed for installation between pipe flanges. Compatibility with all international flange standards is available, including: ANSI, DIN, JIS, BS, ISO, AFNOR and UNI. Between the Safety Head and the pipe flanges an application compatible gasket is used for sealing purposes. The unique configuration of the SRB-7RS Safety Head design enables the same holder to be installed between flanges covering a range of flange specifications. For example: a single design of 1"/25mm SRB-7RS Safety Head is compatible with ANSI 150/300/600, DIN...

S-90TM The S-90 is a domed, solid metal, precision scored reverse buckling disk, which, upon over-pressure, reverses and opens along pre-weakened cross-score lines to provide a full relief opening. The compression loaded S-90 disk offers an extended service life under pressure cycling conditions compared to a conventional tension loaded disk. The S-90 disk exhibits excellent fatigue resistance in cyclic pressure service, surviving 1,000,000 pressure cycles from 0-90% of its marked burst pressure. Designed for non-fragmentation Withstands full vacuum and back pressure equal to or less than...

RLSTM The RLS is a Precision Circular-Scored Reverse Buckling Rupture Disk. When over-pressurized, this domed, solid metal, reverse buckling disk reverses and opens along a pre-weakened circular score line on the down-stream side of the disk. A patented hinge welded to the disk facilitates relief opening along the score line and retains the disk’s central petal preventing fragmentation even at high burst pressures. Gas and full liquid service Designed for non-fragmentation Withstands full vacuum Suitable for operating pressure to 90% of the marked burst pressure and 95% of the minimum burst...

JRSTM A domed, solid metal low-pressure reverse buckling disk, the JRS reverses on over-pressure and opens by cutting along a teeth ring attached to the atmospheric side of the disk. A hinge integral to the teeth ring on the downstream side of the disk retains the disk’s central petal preventing fragmentation. Designed for non-fragmentation Withstands full vacuum Suitable for operating pressure to 90% of the marked burst pressure or 95% of the minimum burst pressure (CEN ISO 4126-2 Standard pending) Suitable for operating pressure of 90% of the minimum burst pressure for burst pressures...

Precision Circular-Scored Reverse Buckling Rupture Disk Lowest burst pressure in the Sta-Saf range Available Materials: 316 Stainless Steel, Nickel (alloy 200), Inconel (alloy 600), and Monel (alloy 400) Gas and full liquid service - order as type FRLTM for liquid Designed for non-fragmentation Withstands full vacuum Suitable for operating pressure to 90% of the marked burst pressure and 95% of the minimum burst pressure (CEN ISO 4126-2 Standard pending) Suitable for operating pressure of 90% of the minimum burst pressure for burst pressures below 40 psi (2.76 bar) Damage Safety Ratio of 1...

S90-7RTM Pre- Assembled Safety Head Locates inside the studs between two companion flanges. Offers pre-assembly of S-90 or FRS disks into the Safety Head before installation into the pressure system. Standard Materials: 316 Stainless Steel and Carbon Steel. SAFETY HEADS Three asymmetric locating pins ensure centering and correct orientation of the disk within the Safety Head A "bite-type" seal for sizes 2" (50mm) and larger engages with the disk flange creating a metal-to-metal 'bubble tight' seal Disk dome protected by Safety Head inlet Maximized flow with full circular opening Flow arrows...

Microsoft Word - Document1 tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:6.00pt "Arial", sans-serif; } .font2 { font:7.00pt "Arial", sans-serif; } .font3 { font:8.00pt "Arial", sans-serif; } .font4 { font:5.00pt "Franklin Gothic Medium", sans-serif; } .font5 { font:7.00pt "Franklin Gothic Medium", sans-serif; } .font6 { font:8.00pt "Franklin Gothic Medium", sans-serif; } .font7 { font:9.00pt "Franklin Gothic Medium", sans-serif; } .font8 { font:6.00pt "Georgia", serif; } .font9 { font:9.00pt "Impact", sans-serif; } .font10 {...