Composite Vessels
Material of
construction
Inner shell
material:
Polyethylene
Operating
parameters
Maximum
operating pressure: 150 psi
Maximum
operating temperature: 150° F
Design
parameters – Pentair
Safety factor:
4:1 (Minimum
burst at 600 psi)
Cycle test:
250,000 cycles
without leakage
Design
parameters – NSF
Safety factor:
4:1 (Minimum
burst at 600 psi)
Cycle test:
100,000 cycles
without leakage
Design
parameters – ASME
Safety factor:
5:1 Top/bottom
flange
(Minimum burst
at 750 psi)
6:1 Side flange
(Minimum burst at 900 psi)
Cycle test:
33,000 cycles
without leakage
(Top/bottom
flange)
100,000 cycles
without leakage
(Side flange)
