What is the advantage of mechanical fluid pumps over electric condensate pumps?

Mechanical fluid pumps require no electrical supply, have no motors or mechanical seals to maintain, and cannot cavitate when pumping high-temperature condensate. This results in lower maintenance costs and improved reliability in demanding environments.

Can these pumps handle vacuum conditions?

Yes. Spirax Sarco mechanical fluid pumps can remove condensate from vacuum equipment efficiently without requiring expensive electrical pumps or sensors.

What motive media can be used to operate these pumps?

Steam is the most common motive medium, but other non-volatile pressurised gases can also be used depending on plant availability and application requirements.

Which model is suitable for high-temperature applications above 200°C?

The PTF-HP model is rated for temperatures up to 343°C and operating pressures up to 20.7 bar g, making it suitable for high-temperature process environments.

Are intrinsically safe versions available for hazardous areas?

Yes. Intrinsically safe versions of mechanical fluid pumps are available for installation in hazardous environments. Note that electronic pump monitoring is not suitable for intrinsically safe applications.

SPIRAX SARCO · PUMPS

Spirax Sarco Mechanical Fluid Pumps for Condensate Recovery – MFP14, PTF4 Series

Name: Spirax Sarco Mechanical Fluid Pumps for Condensate Recovery – MFP14, PTF4 Series
Brand: Spirax Sarco

Spirax Sarco mechanical fluid pumps for condensate recovery. MFP14 & PTF4 series for industrial steam systems. Available at PC Engineering India.

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Spirax Sarco Condensate Recovery Solutions

Overview

Spirax Sarco mechanical fluid pumps are engineered to efficiently remove and recover condensate from steam systems under all operating conditions. These pumps use steam or compressed gas as motive power, eliminating the need for electrical supply, motors, or level switches—making them ideal for humid, wet, or remote installations.

Condensate contains approximately 25% of the original heat energy present in steam. Recovering this hot condensate and returning it to the boiler feedwater tank reduces energy consumption, lowers make-up water requirements, and minimises chemical treatment costs. The MFP14 and PTF4 series are designed for open-system condensate collection from multiple steam traps, while also serving closed-system applications such as pump/trap combinations for heat exchangers and vacuum equipment.

These self-contained, fully automatic pumps operate without sensors or external controls, providing reliable condensate management with minimal maintenance requirements.

Key Features

No electrical supply required – Self-contained unit using steam or non-volatile gas as motive power
Fully automatic and self-regulating – Operates on demand without sensors or controls
No cavitation – Capable of pumping high-temperature fluids without cavitation issues
Low maintenance – No mechanical seals or packing glands to leak
Low running costs – Typical steam consumption less than 20 kg/h
Electronic pump monitoring available – Enables volume calculation of pumped fluid
Optional insulation jacket – Reduces heat loss from pump body
Packaged units available – Fully assembled and tested, ready for installation
Intrinsically safe versions – Available for hazardous area applications

Specifications

Parameter	MFP14 (SG Iron)	MFP14SS (Stainless Steel)	MFP14S (Steel)	PTF4	PTF-HP
Body Material	SG Iron	Stainless Steel	Steel	Steel	Steel
Body Design Rating	PN16	PN16	PN16	ASME 150	ASME 150
Inlet Size	1" to 3" (DN25–DN80)	2" (DN50)	2" to 4" (DN50–DN100)	3" (DN80)	3" (DN80)
Outlet Size	1" to 2" (DN25–DN50)	2" (DN50)	2" to 4" (DN50–DN100)	2" (DN50)	2" (DN50)
Max Operating Pressure (PMO)	13.8 bar g	10.9 bar g	13.8 bar g	13.8 bar g	20.7 bar g
Max Operating Temperature (TMO)	198°C	188°C	198°C	198°C	343°C
Max Discharge per Cycle	19.3 litres	12.8 litres	12.8 litres	102 litres	60.6 litres
Max Nominal Capacity*	5,500 kg/h	3,300 kg/h	3,300 kg/h	21,000 kg/h	8,000 kg/h

Applications

Spirax Sarco mechanical fluid pumps are suitable for a wide range of industrial condensate recovery applications:

- Open-system condensate recovery – Collecting condensate from multiple steam traps and pumping to boiler feedwater tank - Heat exchanger condensate removal – Pump/trap combination for stable temperature control and prevention of tube corrosion - Process vessel drainage – Ensuring complete condensate removal under varying pressure conditions - Vacuum equipment – Removing condensate from vacuum heat exchangers without electrical pumps or sensors - High-temperature process environments – Handling elevated temperatures up to 343°C (PTF-HP model)

Industries: Pharmaceuticals, food & beverage, chemicals, textiles, refineries, power plants, and general manufacturing.

Product Images

Industrial Condensate Recovery Installation

Frequently Asked Questions

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