| Model | 32-AV | 33-AV | 36-AV |
| Body Material | ASTM A105 Forged Steel | ASTM A105 Forged Steel | ASTM A105 Forged Steel |
| Maximum Allowable Pressure | 600 psig @ 100°F (41 bar @ 38°C) 500 psi @ 750°F (34 bar @ 399°C) |
1000 psig @ 100°F (69 bar @ 38°C) 600 psi @ 750°F (41 bar @ 399°C) |
1000 psig @ 100°F (69 bar @ 38°C) 600 psi @ 750°F (41 bar @ 399°C) |
| Maximum Operating Pressure | 600 psig (41 bar) | 900 psig (62 bar) | 1,000 psig (69 bar) |
| Connection Sizes | 1/2″ (15 mm) 3/4″ (20 mm) 1″ (25 mm) |
3/4″ (20 mm) 1″ (25 mm) |
1-1/2″ (40 mm) 2″ (50 mm) |
30 Series air/gas vents are forged steel, using the same proven free-floating lever mechanisms used in Armstrong steam traps. They are ideal for applications where high air/gas venting capacity is required, up to 1,000 psi (69 bar). They are available with screwed, sockeweld or flanged connections.
Maximum allowable working pressures of floats decrease at temperatures above 100˚F (38˚C). Allow for approximately:
The float is not always the limiting factor, however. Consult with the Armstrong Application Engineering Department if you have a high-temperature application that also requires maximum operating pressure.
Forged steel and stainless steel traps can be modified to resist hydrogen sulfide stress corrosion. These modifications involve annealing the float, which will reduce the maximum working pressure of the float to about half of its normal value. Consult Armstrong Application Engineering for allowable working pressures.
