Chemical Equipment Division
Groupe
Groupe
 
Version Plan du Site
    Graphite Heat Exchangers     Graphite Rupture Discs
 -Series 1
- Series 3 and Series 6
- Burst Alerts
- Accessories
- Venting Capacities
- Torque Instructions
Presentation  - Data / Installation

Graphite Rupture Discs

GRAPHILORŪ Graphite Rupture Discs, MEMBRANE DISCS, SERIES 1

+ DESIGN CRITERIA AND DATA

RDS1Assy1.gif (17186 bytes)

Membrane Disc Assembly for 150 # ANSI Flanges

Standard Burst Ratings 5, 10, 15, 20, 25, 30, 40, 50, 75, 100, 125, 150 PSIG
Nominal Pipe

Dimensions In Inches

Size A B C
1" 2-1/2" 1" 1-1/8"
1.5" 3-1/4" 1-1/2" 1-1/8"
2" 4" 2" 1-1/4"
3" 5-1/4" 3" 1-9/16"
4" 6-3/4" 4" 1-15/16"
6" 8-5/8" 6" 2-3/8"
8" 10-7/8" 8" 3-5/16"
10" 13-1/4" 10" 3-1/2"
12" 16" 12" 3-5/8"
14" 17-5/8" 13-1/4" 3-7/8"

'A' = Overall Diameter Of Assembly
'B' = Nominal Inside Diameter
'C' = Overall Assembly Height

+ LOW PRESSURE BURST DISC

Size Lowest BurstRatings Available Low PressureDisc Accuracy
1" 15 psig +/- 5%
1-1/2" 10 psig +/- 0.75 psig
2" 4 psig +/- 0.75 psig
3" 3 psig +/- 0.75 psig
4" - 6" 2 psig +/- 0.75 psig
8" - 10" 1.0 psig +0.75 / -0 psig
12" - 14" 0.5 psig +0.75 / -0 psig

+ TYPICAL INSTALLATION OF MEMBRANE DISC ( SERIES 1 ) ASSEMBLY

  • Refer to diagram above

+ IMPORTANT NOTES:

  • The GraphilorŪ Membrane Disc Assembly consists of the following:
    • A two piece reuseable holder (vent and pressure side rings) made of impregnated graphite, stainless steel or for 2", 3", and 4", molded phenolic..
    • A membrane disc which fits between the vent and pressure side rings.
    • A vacuum dial (less than 10 psig) or vacuum bar (10 psig to 20 psig) if required by specific application.
  • Holdrs are designed to fit within the bolt circle of 150# or 300# ANSI flanges. Make sure holder is properly centered between flanges during installation.
  • It is important to install the disc in the correct flow direction. This has been aided by the "keyed" vent side gasket and noted by an arrow on the on the holder label.
  • Flange faces must be parallel to each other in order to eliminate excessive bolting forces when installing membrane disc assembly.
  • Burst pressure shown on lable has been established at ambient temperature. Elevated temperatures may cause a reduction in the actual burst pressure of the disc.