Spirax Ball Floating Steam Trap Ft 14
The Spirax Sarco FT14 is a SG iron-bodied ball float steam trap featuring stainless steel internals and an integral automatic thermostatic air vent. It provides continuous condensate discharge at steam temperature and can be maintained in-line without disturbing connected pipework.
Technical Specifications Summary
|
Feature |
Specification Details |
|
Sizes & Connections |
DN15 (½"), DN20 (¾"), DN25 (1") Flanged EN 1092 PN16, ASME 150, JIS/KS 20 |
|
Flow Configurations |
FT14 (R-L) [Right-to-Left], FT14 (L-R) [Left-to-Right] Body cover can be adjusted on-site for downward vertical flow applications |
|
Max Differential Pressure ($\Delta PMX$) |
FT14-4.5: 4.5 bar (65 psi) FT14-10: 10 bar (145 psi) FT14-14: 14 bar (203 psi) |
|
Operating Limits (PMO / TMO) |
PMO: 14 bar g (203 psi g) for saturated steam TMO / TMA: 250 °C @ 13 bar g (482 °F @ 189 psi g) |
|
Body Design Conditions |
PMA: 16 bar g @ 100 °C (232 psi g @ 212 °F) Cold Hydraulic Test: 24 bar g (348 psi g) |
|
Thermostatic Air Vent |
BP99/32 Capsule Suitable for 150 °C superheat @ 0 bar g / 50 °C superheat @ 32 bar g |
|
Optional Extras |
FT14-C: Manual Needle Valve for Steam Lock Release (SLR) FT14X: Integral Strainer Screen |
Component Materials
- Body & Cover: SG Iron EN 1563 EN-GJS-400-15 (Item 1 & 4)
- Cover Bolts: Steel BS 3692 Gr. 8.8 (Item 2)
- Cover Gasket: Reinforced exfoliated graphite (Item 3)
- Internals (Float, Seat, Frame, Pin): Stainless Steel (Items 5, 8, 10, 11)
- Air Vent Assembly: Stainless Steel (Item 17)
- Erosion Deflector: Stainless Steel BS 970 431 S29 (DN25 only)
Recommended Tightening Torques
|
Fastener / Item |
Tool Size / Specification |
Torque (N m) |
Torque (ft lbf) |
|
Cover Bolts (Item 2) |
17 A/F ($M10 \times 30$) |
47 – 50 |
35 – 37 |
|
Valve Seat (Item 5) |
17 A/F |
50 – 55 |
37 – 41 |
|
Pivot Frame Screws (Item 7) |
Pozidrive (M4 × 6 → M4 × 6 mm ) |
2.5 – 3.0 |
1.8 – 2.2 |
|
Air Vent Assembly (Item 17) |
17 A/F |
50 – 55 |
37 – 41 |
|
SLR Assembly (Item 19/21) |
19 A/F |
50 – 55 |
37 – 41 |
Dimensions and Weights
|
Size |
A (PN / ASME) |
A (JIS / KS) |
B |
C |
D |
E |
G (Withdrawal) |
Weight |
|
DN15 (½") |
150 mm (5.9") |
150 mm (5.9") |
107 mm |
101 mm |
51 mm |
47 mm |
115 mm |
4.5 kg (10 lb) |
|
DN20 (¾") |
150 mm (5.9") |
150 mm (5.9") |
107 mm |
101 mm |
51 mm |
47 mm |
115 mm |
5.0 kg (11 lb) |
|
DN25 (1") |
160 mm (6.3") |
170 mm (6.7") |
117 mm |
70 mm |
100 mm |
10 mm |
120 mm |
6.5 kg (14 lb) |
