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PN25/PN16SG IronHigh Capacity

Spirax Sarco FT14 and FT14HC Ball Float Steam Traps

Spirax Sarco FT14 and FT14HC are SG iron bodied ball float steam traps with stainless steel internals. Available in sizes 1" to 2", they feature an integral automatic air vent and are designed for high-capacity condensate drainage in steam systems.

Spirax Sarco FT14HC Ball Float Steam Trap

Product Overview

The FT14 and FT14HC are iron-bodied ball float steam traps having stainless steel working internals and an integral automatic air venting facility. These traps are supplied with horizontal screwed connections only and can be maintained without disturbing the pipework.

The FT14HC (High Capacity) is specifically available in 1" size for applications requiring higher condensate discharge rates than the standard FT14 series.

Key Features

  • High Discharge Capacity: Designed for efficient drainage of large condensate volumes.
  • Robust Construction: SG iron or cast iron body with all stainless steel internals.
  • Integral Air Vent: Features the BP99/32 capsule for automatic start-up air venting.
  • In-line Maintenance: The valve can be serviced without removal from the pipeline.

Sizes and Pipe Connections

Available sizes:

  • 1" (FT14HC only)
  • 1¼", 1½", and 2" (FT14)

Standard connections: Screwed BSP T Rp (ISO 7-1) or NPT.

Pressure and Temperature Limits

Size1" HC and 1¼"1½" and 2"
Body design conditionsPN25PN16
PMA - Max. allowable pressure25 bar g @ 100 °C16 bar g @ 100 °C
TMA - Max. allowable temperature300 °C @ 18 bar g220 °C @ 13.5 bar g
PMO - Max. operating pressure21 bar g14 bar g
TMO - Max. operating temperature275 °C @ 19 bar g220 °C @ 13.5 bar g
ΔPMX - Max. differential pressure4.5, 10, or 14 bar4.5, 10, or 14 bar

Spirax Sarco FT14HC Pressure Temperature Limits

Materials

No.PartMaterialStandard
1Body (1", 1¼")SG IronBS EN 1563 JS 1030
Body (1½", 2")Cast IronDIN 1691 GG 25
4Cover (1", 1¼")SG IronBS EN 1563 JS 1030
Cover (1½", 2")Cast IronDIN 1961 GG 25
5Valve seatStainless steelBS 970 431 S29
8Ball float and leverStainless steelBS 1449 304 S16
17Air vent assemblyStainless steel

Spirax Sarco FT14HC Materials ChartSpirax Sarco FT14HC Structure Drawing

Capacities

The capacity charts illustrate the condensate discharge capacity at different differential pressures.

Spirax Sarco FT14HC Capacities Chart

Dimensions and Weights (approximate)

SizeABCDEFGWeight (kg)
1" HC120110801951602201156.8
1¼"120110801951602201156.9
1½"27013010824820027011517.5
2"30013812525020028814022.0

(Dimensions in mm)

Spirax Sarco FT14HC Dimensions Drawing

Optional Extras

  • Steam Lock Release (SLR): Designation 'C' (e.g., FT14HC-C). Prevents steam locking in siphons.
  • Tapped Cover: Available with 3/8" BSP/NPT tappings for balance or drain lines.

Spare Parts

Spirax Sarco FT14HC Spare Parts

Available spares include:

  • Main valve assembly with float (1" and 1¼")
  • Main valve assembly with erosion deflector (1½" and 2")
  • Ball float (1½" and 2")
  • Air vent assembly
  • SLR and air vent assembly
  • Gasket sets

How to Order

Example: 1 off Spirax Sarco 1" screwed BSP T Rp (ISO 7-1) FT14HC-14 ball float steam trap having an SG iron body and cover, with thermostatic air vent - flow direction left-to-right.