Two-way Universal Arma-Gard™ (DSC-AGS*2WS) (DSC-AGS*2WD)

Two-way Universal Arma-Gard™ (DSC-AGS*2WS) (DSC-AGS*2WD)

Back to Rupture Discs & BPRVs
Two-way Arma-Gard, for positive and negative pressure protection

Single installation for positive and negative pressure protection

Two-way Universal Arma-Gard™ is an engineered graphite rupture disc device designed to prevent vessel damage from under vacuum or over pressure conditions. Unlike standard rupture discs, this two-way acting bursting disc is designed to be installed directly between flanges. Due to its assembly, this rupture disc offers you reliability and peace of mind being the only two-way functioning graphite rupture disc to be used with ATEX-approved, reusable burst detection Flo-Tel™+.

Two-Way Arma-Gard offers unique benefits over traditional graphite discs

Two-way Arma-Gard benefits from a unique 10% tolerance with an 85% operating to burst pressure ratio. This graphite bursting disc requires no holder to fit directly between flanges and is non-torque sensitive due to its stainless steel armoured ring, allowing for the degree of clampage necessary for correct sealing. This disc provides excellent corrosion resistance and is suitable for very low burst pressure applications

Simple installation between industry standard flanges

Two-way Arma-Gard acts as a single disc installation for both positive and negative pressure protection. Due to its unique construction Universal Arma-Gard offers ease of installation between industry standard flanges. This graphite rupture disc overcomes problems associated with traditional graphite discs and is not directly affected by over-torquing or easily damaged during storage or installation.

 

 

 

Cutting costs on rewiring

Two-way Arma-Gard is supplied as standard with the Elfab Flo-Tel actuator to allow for use of Elfab’s unique, reusable, non-invasive burst detection system Flo-Tel™+. Due to its assembly, this disc offers you stability and peace of mind with its integrated detection attached allowing you to instantly know when the disc has ruptured.

Leading the industry in advanced quality performance

Elfab pride themselves in offering the highest level of quality and are accredited to a number of leading industry standards. Elfab’s rupture discs can be manufactured to ISO 4126 or ASME VIII dependent on customers’ requirements.

When used in combination Elfab’s rupture discs and detection systems can offer industry leading SIL ratings to offer customers increased safety information. Please contact our technically trained sales engineers for more information.

• Industry leading 10% tolerance, up to 85% operating ratio
• Manufactured to ISO4126 or ASME VIII
• Fragmenting bursting disc design
• Suitable for liquid, gas and vapour applications
• Low pressure capability
• Non-torque sensitive
• Available with Stainless Steel Spacer ring to help change from traditional graphite disc

 

 

Contact Elfab about this product
Size Range 25mm to 300mm (1” to 12”)
Burst Pressure Range 0.7 barg to 35 barg (1 Psig to 507 Psig)
Temperature Range See product downloads
Maximum Operating Ratio 85% of minimum burst pressure (76.5% of nominal burst pressure)
Fragmentation on Burst Fragmenting
Vacuum Service Support Not Required Above 1.7 barg (24.6 psig)
Fluid Compatibility Liquid, Gas or Vapour
Torque Sensitive No
Material Range Impregnated Graphite
Kr Values 0.6
Damage Ratio <1  (Fail Safe)
Leak Tightness Average
Performance Tolerance +/-10%   (zero manufacturing design range)
Protective Linings Available
Detection Detection in 1 direction as standard. Detection for both directions requires special holder and 2 Flo-Tels*Subject to process conditions