The Spirax Sarco FTS14 maintenance kit provides all necessary replacement components to fully service the FTS14 austenitic stainless steel ball float steam trap. This comprehensive kit ensures the continued efficient condensate drainage and prompt air removal of the host trap. It is compatible with FTS14 traps in sizes ½" (DN15) to 1" (DN25) across pressure ranges of 4.5, 10, and 14 bar.

Kit Contents

The maintenance kit includes the following replacement parts to restore the trap to optimal working condition:

Item No.	Part Description	Material
3	Cover gasket	Reinforced exfoliated graphite
5	Main valve seat	Stainless steel (BS 970 431 S29)
6	Main valve/air vent seat gasket (2 off)	Stainless steel
7	Main valve assembly screws (2 off)	Stainless steel
8	Ball float and lever	Stainless steel (BS 1449 304 S16)
9	Air vent assembly	Stainless steel
12	Pivot frame	Stainless steel
14	Pivot	Stainless steel
15	'O' ring	Grey Viton (FDA approved)
16	Valve spring (1" only)	Stainless steel
18	Strainer screen	Stainless steel (optional extra)

How to Order Spares

Always order spares by using the description "Maintenance kit" and state the size, type of trap, and pressure range (i.e., 4.5, 10, or 14 bar).

Ordering Example

1 - Maintenance kit for a Spirax Sarco ½" FTS14-4.5 steam trap.

Maintenance Instructions

Before undertaking any maintenance on the trap, it must be isolated from both the supply line and return line, and any pressure allowed to safely normalise to atmosphere. The trap should then be allowed to cool. When reassembling, ensure that all joint faces are clean.

WARNING

The cover gasket contains a thin stainless steel support ring which may cause physical injury if not handled and disposed of carefully.

How to fit the main valve assembly

1. Undo the cover bolts (2). Place two screwdrivers between the body and cover on either side and lever off the body, keeping bolt holes aligned.
2. Remove the pivot pin (14) and float assembly (8).
3. Remove the two main valve assembly screws (7) and pivot frame (12).
4. Remove the main valve seat (5) and replace with a new seat supplied with new gasket and tighten to the recommended torque. Note: A valve spring (16) is fitted to the DN25 (1") traps only.
5. Refit the pivot frame (12) by tightening the assembly set screws (7) to the recommended torque.
6. Replace float assembly (8) and pivot pin (14).
7. Fit a new 'O' ring (15) onto the body ensuring that the 'O' ring contact surfaces are all clean and in good condition. Care must be taken to ensure that the 'O' ring is not damaged during assembly. A suitable lubricant may be used to ease assembly.
8. Refit the cover using a new gasket (3) and tighten the cover bolts (2). This is relevant to all configurations.

How to fit the air vent assembly

1. Remove the spring clip, element and spacer plate.
2. Unscrew the seat (9) and remove along with the gasket (6).
3. Fit a new gasket, seat and frame and tighten to the recommended torque.
4. Assemble the spacer plate, fit capsule and clip.
5. Align the complete air vent horizontally so that the frame clears the cover.

Recommended Tightening Torques

Item	Part	Tool / Size	Torque (N m)
5	Main valve seat	17 A/F	50 - 55
7	Main valve assembly screws	Pozidrive M4 x 6	2.5 - 3.0
9	Air vent assembly	17 A/F	50 - 55