USG · steam_generator
Cemline unfired steam generator
Cemline H860USG20120 unfired steam generator — humidification; make-up on meter m5.
- Tier
- 3
- Consequence
- 3 CONFIRMED
- Probability
- —
- Risk
- —
- Scored
- 2026-10-24
- Consequence note
- Tier 3 running/local base 2.
Identity
- Model
- H860USG20120
- Type
- Unfired (no burner), horizontal
- Bundle
- 20 in dia × 120 in length
- Tubes
- 1/2 in 20-ga copper, triangular pitch
- Surface
- 823.0 ft² installed (759.4 required)
- Serial No.
- 79433
- Size
- 48 × 120 in
- Gallon capacity
- 860 gal
- Coil model
- 20120AA
- Manufacturer
- Cemline Corporation, Cheswick PA 15024
Design duty
- Output steam
- 4,000 lb/hr @ 3 psig
- Motive steam
- 10 psig plant steam, 5,841.9 lb/hr
- Make-up water
- 40°F
- Heat transfer
- 5.65 MMBTU/hr
- U
- 460.3 BTU/hr·ft²·°F
- Min steam valve Cv
- 285.8
Metering
- Water meter
- m5 Steam Generator Make-Up (×100)
- Season
- Reads 0 all summer — expected
Nameplate (unit)
- Vessel max W.P.
- 125 psi
- Water design pressure
- 50 psi
- Steam design pressure
- (relief 15 psi)
- Relief valve set
- 15 psi
Stage 1 actuator
- Mfr
- PS Automation (Germany)
- Type
- PSF402.2-SE
- Serial No.
- 413646
- Datecode
- C25
- Supply
- 24 VAC/DC, 50/60 Hz, 25 W
- Speed / thrust
- 2.00 mm/s · 2.00 kN
- Enclosure
- IP67
- Order code
- PUR1369
High stage actuator
- Mfr
- PS Automation (Germany)
- Type
- PSF402.2-SE
- Serial No.
- 413644
- Datecode
- C25
- Supply
- 24 VAC/DC, 50/60 Hz, 25 W
- Speed / thrust
- 2.00 mm/s · 2.00 kN
- Enclosure
- IP67
- Order code
- PUR1369