Non fragmenting flat disc – type C

Applications :

  • Disc for liquids, gas and vapors
  • Operating ratio: 80% of the bursting pressure at 20°C
  • Lowest burst pressure can be realized (+25 mbar eff.)

Construction in accordance with directive 97/23/CE:

  • Between 2 laser-cut metal foils lies a PTFE sealing membrane
  • on fragmenting disc
  • Vacuum resistant
  • -80°C to +150°C because of PTFE sealing
  • DN15 à DN1200
  • Bursting tolerances: +/- 5% and +/- 15%

Materials : Stainless steel 316, Nickel, Hastelloy®, Inconel

Alternatives:

  • With detection plate
  • Bi-directional: bursting either in pressure or vacuum
  • PTFE lined on process side

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

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Flat composite metallic disc
Non fragmenting flat disc after bursting

Flat composite disc with detection plate, in holder

1. Mounting directly between flanges (without holder) :

  • Flanges PN10, PN16, PN20 and PN40
  • Tightness with PTFE or graphite gaskets
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2. Mounting with detection plate between flanges (in holder) :

  • Flanges PN10, PN16, PN20 and PN40
  • Mounting in the upper holder
  • Inductive detector ATEX
  • Detection plate welded on the disc, fixed in front of the detector
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Reverse bursting disc – type U

Applications :

  • For liquids (with gas cushion), gas and vapours
  • Operating ratio: 85% of the bursting pressure at 20°C
  • Ideal for application with safety valve

Recommanded for :

  • Alternative or high operating pressures
  • Alternative or high operating temperatures (-80°C / +450°C)
  • Total sealing

Construction: in accordance with directive 97/23/CE :

  • Reverse buckling discs are scored full metal discs
  • Non fragmenting disc
  • Full vacuum resistant
  • DN20 to DN250

Materials : Stainless steel 316, Nickel, Hastelloy®, Inconel

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

Reverse bursting disc – type U

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1. Mounting in a holder between flanges :

  • Flanges PN10, 16, 20, 40 and 50
  • Tightness with PTFE or graphite gaskets
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2. Mounting with signal detector between flanges (with holder) :

  • Flanges PN10, PN16, PN20, PN40 andt PN50
  • Mounting in a holder
  • Inductive detector ATEX mounted in the upper holder
  • Detection plate welded on the disc, fixed in front of the detector
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Bursting disc for sterile installations

Applications :

  • Disc for liquids, gas and vapors

Construction in accordance with directive 97/23/CE :

  • Between 2 laser-cut metal foils lies a PTFE sealing membrane
  • EPDM (FDA) or PTFE gaskets
  • Non fragmenting disc
  • Vacuum resistant
  • DN20 to DN50

Materials : Stainless steel 316, Nickel, Hastelloy®, Inconel

Alternatives :

  • Reverse buckling discs: full metal discs
  • Bi-directional
  • Seamless surface design for sterile applications Ra< 0,8µm
  • PTFE lining on process side

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

Disc for sterile installations

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1. Mounting directly between clamp ferrules :

  • Clamps according to ISO / DIN 32676 / Inches
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2. Mounting with inductive detector in a longer upper clamp :

  • Inductive detector mounted in a longer upper clamp
  • Detection plate welded on the disc, fixed in front of the detector
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Alarm system for graphite safety disk

Detection with Two tantalum contacts

Detection with contact finger
Description :

The alarm systems used for monitoring graphite safety discs provide a visual and acoustic alarm or trigger plant cutoffs. Two tantalum contacts or a contact finger in the alarm system press against the membrane of the safety disc and close the circuit of an amplifier relay. When the safety disc ruptures, the current circuit is interrupted and this triggers the alarm.

Advantages :

  • Corrosion resistance ensured by use of suitable materials
  • Reusability after safety disk rupture
  • Simple electrical connection via the 1.5 meter-long integral connecting cable
  • Used together with the matching amplifier relay, this system can also be operated in high explosion risk zones

Technical data :

  • Service voltage : AC 207V-253V, 45Hz – 60Hz, DC20 V – 30V
  • Circuit [EExia] II C, input as per DIN 19234 (Namur)
  • Output: 1 changeover AC 253 V / 2 A, DC 40 V / 2 A
  • The amplifier relay should be mounted outside the explosion risk zone

High purity gas bursting disc

Construction: in accordance with directive 97/23/CE :

  • 1/4″, 1/2″, 3/4″, 1″
  • Bursting pressure : 2 à 400 bar
  • Separate idenditification plate
  • Helium leakage test : rates up to 10 -9 mbar/l.s

Materials : Stainless steel 316, Nickel, Hastelloy ®, Inconel

Mounting :

  • Existing coupling

High purity gas bursting disc

VCR coupling

High pressure bursting discs

Applications : Pumps and high equipments

Construction: in accordance with directive 97/23/CE :

  • 1/4″
  • Bursting pressure : 400 to 5000 bar
  • Separate idenditification plate

Materials : Stainless steel 316, Nickel

Sealing :

  • Obtained by a conical thrust piece in the conical seating of a high-pressure screw coupling of the Dunze/Nova/Sitec style

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

High pressure bursting discs

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Bursting plugs

Applications : Extruders, tanks: to avoid dead spaceConstruction: in accordance with directive 97/23/CE :

  • Screw-in plugs with a soldered-on or welded-on bursting foil
  • Reduced dead space

Materials :

  • Stainless steel disc 316 / Nickel / Hastelloy ®
  • Brass or stainless steel plug

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

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Bursting disc N – for universal use

Application : Standard applications with partial vacuum

Construction :

  • Monoblock construction for direct mounting between DIN / ISO or ANSI standard flanges
  • Fragmenting disc
  • Synthetic resin-impregnated process equipment graphite

Field of use :

  • Bursting pressure : 100 mbar to 80 bar
    • N I : 0,1 to 50 bar
    • N II : up to 80 bar
  • Maxi service pressure in % of nominal bursting pressure :
    • Static load : 75%
    • Oscillating load : 70%
  • No change in bursting pressures from -60 to +50°C, thereafter about 5% reduction per 40°C rise in temperature

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

Series N with vacuum support

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Bursting disc HT – up to 300°C

Applications :

  • Bursting behaviour unaffected by temperature
  • Vacuum operation (with separate, reusable perforated disc made from graphite or PTFE)
  • Food applications (FDA), no risk to health

Construction :

  • Monoblock construction for direct mounting between DIN / ISO or ANSI standard flanges
  • Fragmenting disc
  • Non-resin-impregnated process equipment graphite with graphite foil or PTFE film (not vacuum resistant)
  • Vacuum support : with separate, reusable perforated disc made from graphite or PTFE

Field of use :

  • Bursting pressure : 0,1 to 80 bar
    • HT I : 0,1 to 35 bar
    • HT II : up to 80 bar
  • Maxi service pressure in % of nominal bursting pressure :
    • Static load : 80%
    • Oscillating load : 75%
  • Temperatures range :
    • -60 to +300°C with graphite foil
    • -60 to +250°C with PTFE foil

Some other type of bursting discs (stainless steel, nickel, inconel, graphite…) may reach your need, feel free to contact us.

Series HT
Vacuum support for Series HT I et F

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