Product Handbook 2026 - Volume 2

Condensate pumps Mechanical pumps and pumps traps

9

Nominal capacities For full capacity details for a specific application consult Spirax Sarco. To accurately size the pump trap, the following data is required.

1. Installation head available, from the base of the pump trap to the centre line of the heat exchanger/process condensate outlet (m). If the outlet is mounted vertically, then this should be from the base of the pump to the face of the outlet.

2. Motive steam pressure available to power the pump trap (bar g). 3. Total backpressure in the condensate return system (bar g). 4. Heat exchanger full-load operating pressure (bar g). 5. Heat exchanger maximum steam load (kg / h). 6. Minimum temperature of secondary fluid ( °C). 7. Maximum controlled temperature of secondary fluid ( °C).

Model

APT14

APT14HC and APT14SHC

5 litres (1.3 gallons)

8 litres (2.1 gallons)

Pump discharge/cycle

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P612-04) supplied with the product.

How to specify APT14 and APT14HC

The pump trap shall be a Spirax Sarco automatic pump trap type APT14 operated by steam to 13.8 bar g (200 psi g). No electrical energy shall be required. Body construction from SG iron (EN JS 1025 dual certified with ASTM A395) with a swing type inlet check valve (APT14 and APT14HC) and ball type outlet check valve (APT14 only). The internal trap mechanism shall contain dual stainless steel floats connected with a two stage trap, while the internal pump mechanism shall be a stainless steel single tension spring snap- action device with no external seals or glands. APT14SHC The pump trap shall be a Spirax Sarco automatic pump trap type APT14SHC operated by steam to 13.8 bar g. No electrical energy shall be required. Body construction from carbon steel (EN 1.0619 dual certified with ASTM A216 WCB) with a swing type inlet check valve. The internal trap mechanism shall contain dual stainless steel floats connected with a two stage trap, while the internal pump mechanism shall be a stainless steel single tension spring snap-action device with no external seals or glands.

How to order Example: 1 off Spirax Sarco automatic pump trap, type APT14, DN40 x DN25, flanged EN 1092 PN16 with BSP T Rp (ISO 7-1) motive

fluid connections. Optional extras

9.1 18

Both the APT14 and APT14HC are available with the body and cover coated with electroless nickel plate (ENP) . This option, when required, will be denoted as APT14 ENP and APT14HC ENP respectively and must be stated at the time of order placement. The APT14, APT14HC and APT14SHC are available with the body drilled, tapped and plugged to accept sight level gauges. Note: Sight level gauges can not be fitted retrospectively to the standard APT14, APT14HC or APT14SHC.

TI-P612-02 CMGT Issue 15

Page 10 of 13

APT14, APT14HC and APT14SHC Automatic Pump Traps

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