Transcript Diaphragm, Seat, and O-Ring Materials

Diaphragm, Seat, and O-Ring Materials
Material
Code
Application
Temperature
Wear Resistance
Available Forms
Nitrile
(none)
General purpose, petroleum fluids,
ethylene glycol, water, small amounts
of methanol
-30° to +200° F
1
O-Rings, Seats,
Diaphragms
Polyacrylate
H
Heat resistance, oils, natural gas
0° to +300° F
.5
O-Rings, Seats,
Diaphragms
Ethylene Propylene
EP
Steam, water, alcohols
-65° to +300° F
1.5
O-Rings, Seats,
Diaphragms
HSN
Petroleum fluids, H2S, CO2
-20° to +300° F
2
O-Rings, Seats,
Diaphragms
Polyurethane
P
Petroleum fluids, CO2, abrasion,
toughness
-40° to +200° F
5
Seats, 106P Diaphragm
Viton®
V
Heat, acids, propane gasoline, no
methanol, not for hot water or steam,
not for wet CO2
-15° to +350° F
.75
O-Ring, Seats,
Diaphragms
GEP
Steam, water, petroleum fluids
0° to +500° F
1.5
Seats HPMV PB
Aflas®
AF
High heat, steam, amine, acids, bases,
petroleum fluids, no methanol
25° to +450° F
3
O-Rings, Seats
Gylon® 3521
GY
High heat, high chemical resistance,
highly resistant to gas permeation
-350° to +500° F
4
Seats, Diaphragms
Low Temp Nitrile
LTN
Petroleum, low temperature
-65° to +225° F
1
O-Rings, Diaphragms
Multi-Nylon
MN
Petroleum, abrasion, water, steam
100° to +250° F
5
Seats
Highly Saturated
Nitrile
Geothermal EPDM