Nu-Saf Plus
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Nu-Saf" Plus

The System FEATURES • Sizes: 1” - 24” (25-600 mm) • Pressures: 3 to 1800 psig (0.21 to 124 barg) • Up to 85% operating ratio or to 90% of minimum burst pressure (CEN EN ISO 4126-2 pending) • ±/-5% Burst Tolerance above 40 psig (2.76 barg) • Metal-to-metal “bite-type” seal • Tension loaded forwardacting, Damage Ratio <1 • Info-Tag identification BENEFITS • Liquid and gas service • Easy installation • Leak-tight • Fail-safe if damaged •Minimal flow resistance, low KR •Vacuum resistant option at all burst pressures •Choice of Safety Head design • Pre-assembled NX-7R™ • Disk dome protecting...

Precision Scored High Performance Rupture Disk Solid metal Precision scored Designed for non-fragmentation Can withstand vacuum without support Operates up to 85% of the disk’s marked pressure or 90% of minimum burst pressure (CEN standard pending) Liquid and gas service (acceptable for liquid service with compressible gas pocket between liquid and disk) Disk damaged or installed incorrectly will burst at marked burst pressure or lower:Damage Safety Ratio <1 Info-Tag identification Can be used in pressure cycling conditions Optimum fatigue resistance for tension loaded disk technology...

Precision Scored Rupture Disk Solid metal Precision scored Designed for non-fragmentation Can withstand vacuum without support Operates up to 80% of the disk’s marked pressure or 85% of minimum burst pressure (CEN standard pending) Liquid and gas service (acceptable for liquid service with compressible gas pocket between liquid and disk) Damaged disks will burst at marked pressure or lower. Damage Safety Ratio <1 Info-Tag identification Specifications: Min/Max Disk Burst Pressures at 72ºF (22ºC) psig (barg) Minimum Pressures Disk Size Manufacturing Design Range** Burst Tolerances A -10 %...

Low Pressure Rupture Disk Flat composite metal design Fluorocarbon film seal Can withstand full vacuum Operates up to 80%* of the disk’s marked pressure or 85% of minimum burst pressure (CEN standard pending) Suitable for liquid and gas applications Damaged disks will burst at marked burst pressure or lower. Damage Safety Ratio <1 Standard materials of construction 316SS/fluorocarbon film/316SS. Consult us for other materials Info-Tag identification *At marked burst pressures o15 psig (1.03 barg) operating pressures up to 80% (of the disk’s marked burst pressure, minus tolerance)...

Quik-Sert™ reduced diameter fits between the studs of two companion flanges Positive locating pins ensure centering and orientation of disk in the Safety Head Metal-to-metal “bite-type” seal prevents leakage The inlet and outlet of the NX-7R™ Safety Head and Rupture Disk are held together by side lugs Standard material 316SS. Consult BS&B for other materials Optional dial type vacuum support for full vacuum resistance for LCN™ disks with burst pressure below 45 psig (3.1 bar g). (Type NXV-7R™). Free flow area will be reduced by approximately 40%. Consult BS&B Safety Systems, Inc. or BS&B...

Safety Head Locates between studs of two companion flanges Pretorquable design Locating pins ensure centering and orientation of disk within the Safety Head Metal-to-metal”bite-type” seal Standard materials 316SS and carbon steel. Consult BS&B for other materials Disk dome protected by Safety Head outlet Disk and Safety Head can be removed from service, inspected and reinstalled provided capscrews are retained in place and the capscrew torque is maintained For extra protection, a J-bolt is standard. The Safety Heads can only fit between the companion flanges in the one direction that allows...

Safety Head but Safety Head outlet protects NF-7R™ Safety Head Specifications E-mail: sales@bsbsystems.com Bay Raheen Business Park Limerick, Ireland E-mail: salcs@bsb.ie Adamson House, Towers Business Park, Vilmslow Road, Manchester M20 2YY, England E-mail: sales@bsb.ie Products, specifications and all data in this literature are subject to change without notice. Questions regarding product selection and specifications for specific applications should be directed to BS&B Safety Systems, Inc. or BS&B All sales are subject to BS&B Safety Systems, Inc. or BS&B Safety Systems Ltd standard...