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PN40Carbon SteelDN15-DN20

Spirax Sarco FTC32 Carbon Steel Ball Float Steam Trap

Spirax Sarco FTC32 carbon steel ball float steam trap features an integral automatic thermostatic air vent and BP99/32 capsule. Available in DN15 and DN20 sizes with threaded, socket weld, and flanged connections. Maximum operating pressure 32 bar g, maximum superheat temperature 300°C.

Spirax Sarco FTC32 Carbon Steel Ball Float Steam Trap

Description

FTC32 is a carbon steel ball float steam trap with integral automatic thermostatic air vent. It is ideal for all process drainage applications as condensate is always removed efficiently and quickly over a wide range of fluctuating pressure and load conditions. Standard connections are horizontal from right to left (R-L) when viewed from the base.

Product Features

  • Capsule: The BP99/32 capsule used in the FTC32 is suitable for superheated steam with superheat of 150°C @ 0 bar g and 50°C @ 32 bar g.
  • Optional Flow Directions: Also available with horizontal connections having flow from left to right - FTC32 (L-R), and vertical - FTC32V.
  • Material Options: The trap is available with either ASTM or DIN body material.
  • Optional Configurations:
    • FTC32-C: With manually adjustable needle valve providing steam lock release (SLR) in addition to air vent
    • FTC32X: With internal strainer screen
    • FTC32CV: With internal non-return valve
  • Standards & Certification: This product fully complies with the Pressure Equipment Directive (PED) and carries the CE mark when required. This product is available with certification to EN 10204 3.1 (must be stated at time of order).

Sizes and Pipe Connections

** DN15 and DN20 (½" and ¾")**

  • Screwed Connections: BSP and NPT
  • Socket Weld: BS 3799 Class 3000 and ANSI B16.11 Class 3000
  • Flanged Connections: EN 1092 PN40, ANSI B16.5 Class 150 and 300, JIS/KS 20K and 30K

Note: Standard connections are horizontal from right to left (R-L).

Pressure/Temperature Limits

ParameterValue
Body Design ConditionsPN40 / ANSI 300
PMA - Maximum Allowable Pressure (PN40)40 bar g
PMA - Maximum Allowable Pressure (ANSI)50 bar g
TMA - Maximum Allowable Temperature400 °C
Minimum Allowable Temperature0 °C
PMO - Maximum Operating Pressure32 bar g
TMO - Maximum Operating Temperature300 °C
Minimum Operating Temperature0 °C

Note: For lower operating temperatures consult Spirax Sarco. After internals have been installed, the test pressure of the trap must not exceed 48 bar, otherwise damage to internals may occur.

Maximum Differential Pressure (ΔPMX):

ModelFTC32-4.5FTC32-10FTC32-14FTC32-21FTC32-32
Maximum ΔP4.5 bar10 bar14 bar21 bar32 bar

Designed for Maximum Cold Hydraulic Test Pressure:

  • PN: 60 bar g
  • ANSI: 75 bar g

Spirax Sarco FTC32 Pressure Temperature Limits

Important

The product must not be used in the shaded region of the chart or beyond its operating range, as damage to the internals may occur.

Connection Type Key:

  • A - A: Flanged ASME 300, JIS/KS 30K, screwed and socket weld
  • B - B: Flanged PN40
  • C - C: Flanged JIS/KS 20K
  • D - D: Flanged ASME 150

Materials

Spirax Sarco FTC32 Structure Drawing

No.PartMaterialStandard
1BodyCast steelASTM A216 WCB / DIN 17245 GS C25N
2CoverCast steelASTM A216 WCB / DIN 17245 GS C25N
3Cover bolts M12 × 35SteelASTM A193 B7 / A 2.70
4Cover gasketReinforced exfoliated graphite-
5Main valve seatStainless steelBS 3146 ANC 2
6'O'ringEPDM-
7Main valve assembly screws M3 × 6Stainless steelBS 6105 CI A2 70
8Ball float and leverStainless steelBS 1449 304 S11
9Air vent assemblyStainless steel-
10SLR assemblyStainless steelBS 970 303 S21
11Air vent/SLR gasketStainless steelBS 1449 304 S16
12SLR sealGraphite-
13PivotStainless steelBS 970 431 S29
14Strainer screen (FTC32X only)Stainless steelASTM A240 316L
15Check valve assembly (FTC32CV only)Stainless steel-

Note: For clarity some items are not identified on the drawing.

Spirax Sarco FTC32 Materials Drawing

Capacities

Spirax Sarco FTC32 Capacities Chart

Minimum Additional Cold Water Capacity from Thermostatic Air Vent (TV) Under Start-up Conditions:

When condensate is cold during start-up conditions, the internal thermostatic air vent (TV) will be open and provides additional capacity to the main valve. The following table gives the minimum additional cold water capacities from the air vent:

Pressure P (bar)0.5234.5710142132
DN15 and DN20 (kg/h)70140250380560870113015002300

Dimensions and Weights (Approximate) in mm and kg

Screwed/Socket Weld

SizeABCDEFWeight
½" and ¾"15013574169120265.8

Spirax Sarco FTC32 Screwed/Socket Weld Dimensions

Flanged

SizePN40 A1ANSI 150 A1ANSI 300/JIS 20K A1JIS 30K A1BCDEFGWeight
DN15 and DN2015014415015013512118012026477.4

Spare Parts

Spare parts are available as indicated. No other parts are supplied as spares.

Available Spares:

  • Main valve assembly with float: 5, 6, 7 (3 off), 8, 13
  • Air vent assembly: 9, 11
  • Manually adjustable needle valve and air vent assembly (FTC32-C): 9, 10, 11
  • Cover gasket (packet of 3): 4
  • Check valve assembly: 15
  • Strainer screen: 14

How to Order Spares: Always order spare parts by using the description given in the column headed 'Available spares' and state the size, model number and pressure rating of the trap. Example: 1 off Main valve assembly with float for a Spirax Sarco DN15 FTC32-10-C-X-CV (R-L) ball float steam trap.

Spirax Sarco FTC32 Spare Parts Drawing

ItemAcross Flats (mm)Thread/Bolt SizeTorque (N·m)
319M12 × 3565 - 70
7-M3 × 61 - 1.5
1617-50 - 55
1719-40 - 45

Safety Information, Installation and Maintenance

For full details see the Installation and Maintenance Instructions (IM-P602-12) supplied with the product.

Installation Note: The FTC32 must be installed with the direction of flow as indicated on the body, and with the float arm in a horizontal plane so that it rises and falls vertically.

Disposal

This product is recyclable. No ecological hazard is anticipated with the disposal of this product providing due care is taken.

How to Order

Example: 1 off Spirax Sarco DN15 FTC32-10 carbon steel ball float steam trap having EN 1092 PN40 flanged connections with integral automatic air vent and material certification to EN 10204 3.1.

Optional configurations:

  • FTC32(L-R): Flow left to right
  • FTC32V: Vertical installation
  • FTC32-C: With manually adjustable needle valve and steam lock release (SLR)
  • FTC32X: With internal strainer screen
  • FTC32CV: With non-return valve assembly