Armstrong 315 1 1/4 in NPT Inverted Bucket Steam Trap, 130 PSIG PMO

Armstrong's 300 Series inverted bucket steam traps are forged carbon steel traps for vertical installation, available with screwed, socket weld or flanged connections. A leverage system multiplies the bucket's force to open the valve against system pressure, the free-floating mechanism has no fixed pivots to wear, and the discharge orifice sits at the top of the trap where dirt cannot collect. A water seal around the orifice prevents live steam loss.

Part D691143 is the Armstrong 315 in 1 1/4 in NPT, rated 130 psig maximum operating pressure.

Model 315 specifications

• Maximum Capacity: 11,000 lb/hr (4,990 kg/hr)
• Maximum Allowable Pressure: 1,015 psig @ 700°F (70 bar @ 371°C)
• Body Material: ASTM A105 Forged Steel, Cast 316 Stainless Steel
• Maximum Operating Pressure: 650 psig (45 bar)
• Connection Type: Screwed, Socketweld, Flanged
• Connection Size: 1″ (25 mm) 1-1/4″ (32 mm) 1-1/2″ (40 mm)

Manufacturer documentation: data sheet, installation and maintenance manual.