Spirax Sarco FTGS14 Stainless Ball Float Steam Trap

The Spirax Sarco FTGS14 is a stainless steel ball float steam trap with an automatic thermostatic air vent. A float lifts as condensate collects and opens the valve, which discharges condensate continuously as soon as it forms rather than waiting for it to build up. That makes ball float traps the usual choice for heat exchangers, calorifiers, dryers and other process equipment where waterlogging cuts heat transfer. The FTGS14 has a stainless steel body, an electroless nickel-plated SG iron cover and screwed ends from 1/2 to 1 in., and can be maintained without disturbing the pipe.

Technical specifications

Continuous drainage with air venting

In a ball float trap the float rises and falls with the condensate level and moves the main valve through a lever, so discharge follows the load. The built-in thermostatic air vent releases air at start-up that would otherwise block heat transfer surfaces. The data sheet also lists extra cold-water capacity from the air vent during start-up, from 70 kg/h at 0.5 bar differential on the 1/2 and 3/4 in. sizes to 1500 kg/h at 14 bar, which helps clear the equipment quickly when it is cold.

There are three differential pressure ratings in the code: FTGS14-4.5, FTGS14-10 and FTGS14-14, each with its own seat size and maximum differential pressure. Pick the one that matches the pressure difference across the trap.

Options and limits

Available orientations are R-L, L-R and a vertical FTGS14V. An optional manually adjusted needle valve, the -C version, provides a steam lock release feature in addition to the standard air vent. An optional integral strainer screen, the X version, can also be fitted. The BP99/32 capsule is suitable for 150 C superheat at 0 bar g and 50 C superheat at 32 bar g. Maximum operating pressure for saturated steam is 14.6 bar g, so this is a PN16 trap, not a high-pressure one.

The trap is safe for full vacuum and certified with a manufacturer’s Typical Test Report on request.

Selecting and ordering

State the size, thread standard, flow direction, differential pressure class and any option letter. The weight is 3.4 kg for the 1/2 and 3/4 in. sizes and 4.6 kg for the 1 in. size, and the withdrawal distance for the cover is shown in the dimension table. Capacity curves in the data sheet give condensate flow against differential pressure for each class, so size from the load at the lowest differential you expect.

The pictured trap is the standard FTGS14 from the manufacturer’s product image.

Related Spirax Sarco products: Spirax Sarco FTS14 Ball Float Steam Trap, Spirax Sarco CS10 Stainless Steel Clean Steam Separator, Spirax Sarco BTM7 Stainless Steel Thermostatic Clean Steam Trap, Spirax Sarco BPS32 Stainless Steel Balanced Pressure Steam Trap, Spirax Sarco SMC32Y Carbon Steel Bimetallic Steam Trap and Spirax Sarco TD42 Thermodynamic Steam Trap PN63.

Documents and quotation

This page links the official Spirax Sarco FTGS14 ball float steam trap technical information sheet TI-P145-11 (Issue 9), which holds the ordering data, ratings and materials behind the figures above. Seven Star LLC is an independent supplier in Muscat; for a quotation on FTGS14, tell us the quantity and any option you need, such as handle colour, seal material or special cleaning.

Check the code, size and end connection against the attached document before purchase, since variants with similar numbers exist. Related items: product category.