971 - 3/4" NPT, 1/8" Orifice, 175 PSI, Inverted Bucket Trap

970 Inverted Bucket Steam Traps are cast steel, with in-line horizontal pipe connections and vertical integral strainers.

The Series 970 has a unique leverage system multiplies the force provided by the bucket to open the valve against system pressure. The mechanism is free-floating, and has no fixed pivots to create wear or friction. Because the mechanism is located at the top of the trap, no dirt can collect on the orifice. Small particles of dirt are held in suspension until discharged by the full differential purging action when the bucket sinks, pulling the valve off the seat. The discharge orifice is surrounded by a water seal, preventing live steam loss.

Automatic air venting is provided by a small vent hole in the bucket, which provides continuous automatic air and CO2 venting at steam temperature.

Inverted bucket traps drain continuously, although discharging intermittently, allowing no condensate backup. They are also resistant to water hammer.

Details:

• Maximum capacity: 1,100 lb/hr (499 kg/hr)
• Maximum allowable pressure (MAP) : 600 PSIG @ 650° F (41 bar @ 343° C)
• Maximum operating pressure (MOP) : 175 PSIG (12 bar)
• Connection type: screwed
• Connection Size: 3/4"
• Orifice Size: 1/8"
• Steam trap type: inverted bucket
• Body material: ASTM A216 WCB Cast Steel