Spaenaur

Inch
Pouces
LIVE LOAD FLANGE AND GASKET CONNECTION
Use the elastic properties of disc springs in the flange system to maintain a positive seal under varying
thermal and mechanical operating conditions.
Disc Springs help to eliminate
gasket leakage by maintaining
sufficient load under the following
conditions:
● GASKET SET
● BOLT CREEP
● LOSS OF GASKET
RESILIENCY
● VIBRATION
● SHOCK LOADING
● THERMAL EXPANSION
● PRESSURE VARIATIONS
D
LIVE
LOADED
VALVE
TYPICAL
DISC SPRING ARRANGEMENT
COMPRESSION GASKET
FLANGE MEMBERS
● Preload by torquing bolts to proper operating condition
for gasket loading.
● As unit heats up, temperature differences occur between
flange members and bolts, causing flange members
to grow in relation to bolt.
CATALOG 13
Preloaded Gasket
Assembly
● This growth further compresses disc springs, thereby
not damaging bolts or compression gasket.
● As bolt temperature approaches that of flange members
during stable operations, disc spring relaxes to original
preload position, thereby producing the optimal gasket
sealing force.
Independent tests have shown a “live loaded” valve can operate up to 100 times longer than a
conventionally loaded valve.
Stainless Steel 17-7PH Armco is available “Special to Order” on most common sizes.
Tel: 1-800-265-8772 Fax: 519-744-0818
D65