Product Handbook 2026 - Volume 1

Boiler house Heat recovery systems

2

Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2014

TI-P404-01 AB Issue 6

M3 and M6 Plate Heat Exchangers for Residual Blowdown

Description The M3 and M6 plate heat exchangers have been specifically selected for residual blowdown applications, having all wetted parts in 316 grade stainless steel. They are generally used as part of the Spirax Sarco boiler blowdown heat recovery system. Principal features: - Easily dismantled for cleaning without need for removing pipework. - Clip-on EPDM gaskets.

Sizes and pipe connections Screwed 1¼" BSP (BS 21 male), 2" ISO R threads. Note : Heat exchangers can be supplied with flange connections to special order.

2.8 9

2.8.7

Pressure/temperature limits Note: The M3 and M6 heat exchangers comply with PED and are SEP products, except M6-33 which is a Category 1 product.

Maximum temperature

140 °C

- All wetted parts in 316 stainless steel. - ALFA-LAVAL designed heat exchanger. - High heat transfer efficiency.

Maximum working pressure 10 bar g @ 140 °C Designed for a maximum cold hydraulic test pressure of 13 bar g

Carrying bar

Water out

Plate pack

Blowdown in

Pressure plate

Frame plate

Tightening bolt

Guiding bar

Water in

Blowdown out

TI-P404-01 AB Issue 6

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M3 and M6 Plate Heat Exchangers for Residual Blowdown

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