Union, Bolted, Quick-Sert™ Safety Heads
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UNION, BOLTED, QUICK-SERT SAFETY HEADS BSaB SAFETY SYSTEMS, LTD.

UNION TYPE SAFETY HEADS BS&B Union Type Safety Heads are used in applications where space is limited and where quick or frequent changeout of rupture disk may be necessary. Standard sizes are V2", maximum pressure rating of standard fittings for each size and Pressure/Temperature Rat- ing Table for pressures at service tempera- tures. Pressure rating for Safety Head union fitting should be equal to or higher than spec- ified disk rating at corresponding tempera- ture. BS&B Union Type Safety Head design features angular seating of rupture disk and will accept either Type B solid metal disks...

Safety Head

BOLTED TYPE SAFETY HEADS WITH RUPTURE DISKS BS&B QUIKSERT Safety Head. Flanges are assembled with bolted side bars in sizes thru 8" I.D. . . . with recessed cap screws BS&B Bolted Type Safety Heads are normally compati- ble with ANSI (ASA) pipe flanges and the flanged connections used on most pressure vessels. Safety Head inlets and outlets feature angular seating design to accommodate both Type B solid metal disks and Type D composite disks. Important! RB-90 reverse buckling disks cannot be used with this Safety Head BS&B Bolted Type Safety Heads are available in stan- dard sizes ranging...

Use of jack screws simplifies QUIKSERT installation BS&B QUIKSERT installed between two ANSI (ASA) pipe flanges BS&B QUICKSERT installed between two ANSI (ASA) pipe flages BS&B QUIKSERT Safety Head installed at inlet of relief valve.* Telltale indicator assembly detects and prohibits any pressure buildup between valve seat and rupture disk. Assembly includes tapped opening in outlet flange of Safety Head, 74" nipple & tee, pressure gauge and excess flow valve. Any leakage into chamber between disk and valve plug will discharge to atmosphere or through leadoff line to safe location. * ASME...

STANDARD BOLTED TYPE SAFETY HEAD ASSEMBLIES ANGULAR SEAT DESIGN NOTE: COMPANION FLANGES NOT FURNISHED SAFETY HEAD ASSEMBLY

DIMENSIONS FOR BOLTED FLANGE TYPE SAFETY HEADS WITH ANGULAR SEAT DESIGN Standard Safety Heads with welded, threaded and raiSPd face connec- tions conform to ANSI bolting spe- cifications. Special flange facings such as ring joint, tongue and groove are available on request. Overall height dimensions are ap- proximate. If dimensions are crit- ical in the piping layout or in mounting of the Safety Head as- sembly, request a certified assem- Standard bore for welded connec- "Specify if outlet flange of Safety Head will be free-vented or have a back-up

CORROSION-RESISTANT LININGS BOLTED TYPE SAFETY HEADS Lined and coated carbon steel Safety Heads are usually less expensive than Safety Heads made of a corrosion- resistant metal. Before specifying coated Safety Heads, however, consider standard Safety Heads of 316 or 304 stainless steel. These are available from stock in many sizes and ratings and may be more economical than lined or coated carbon steel Safety Heads. Other things to consider are the possibility of damage to the lining or coating and effect of process media. Metal coatings Tantalum coating is available in some sizes of...

JACK SCREWS TAKE THE WORK SAFETY HEADS Jack screws make it easy to install QUIKSERT Safety Heads (Assembly FA-7R). Insert the jack screws through holes drilled in downstream ANSI companion flange in accordance with pattern shown. As jack screws engage stationary ANSI flange mounted to pressure vessel or upstream piping, downstream flange and piping lift to provide adequate clearance for easy removal of Safety Head. Jack screws can be used with full-diameter preassembled Safety Heads (Assembly FA-7) by having lugs welded to O.D. of companion pipe flanges. Jack screws are inserted through...

Eye bolts are desirable when weight is a factor in lifting preassembled Safety Heads outlet flanges of Assemblies FA-1 and FA-4. Safety Head studs can also be used in lifting Tapped openings are drilled 180° apart to accommodate the studs used in the Safety Head assembly. Studs removed during disassembly are screwed into tapped open- ings to serve as lifting lugs.

Baffle Plate When a Safety Head is free-vented to atmos- phere, a baffle plate should be considered to disperse overpressure and absorb recoil. Extra length studs are provided to engage baffle plate. A gauge tap in outlet flange of Safety Head should be considered when Safety Head is installed in a vertical position with outlet free-vented or exhaust piping extended . . . or where atmospheric conditions or process temperature produce condensation that could accumulate on convex side of disk. Drain Full Diameter Safety Head Preassembly When preassembly of Safety Head is desired but QUICKSERT...

SAFETY SYSTEMS Centre House ISO 9001 Quality System Certification Products, specifications, & all data in this literature are subject to change without notice.