JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.
Cal-Pro expansion vessels are suited to absorb the increased water volume when the temperature in the heating system increases.
Cal-Pro vessels are constructed with an SBR membrane and manufactured according to CE norm 97/23 for centralised non potable water heating systems.
Specifications ►Maximum working temperature: -10/+99°C ►Maximum working pressure (4-8 litres): 5 bar ►Maximum working pressure (12-50 litres): 4 bar ►Maximum working pressure (80-800 litres): 6 bar
Zilmet Type 'A' have inlet connection on bottom for mounting directly onto pipework Zilmet Type 'B' are free standing and have inlet connection on side.
UK Delivery Costs Zone 1 - England, Wales and Southern Scotland
Standard Delivery (3-5 working days) - Orders Under £100 - £7.50 / Over £100 - FREE
Express Delivery (1-2 working days) - £15
Premium Next Working Day (delivery before 13.00) - £26
Zone 2 - Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles
Standard Delivery (3-5 working days) - Orders Under £100 - £15 / Over £100 - FREE
Express Delivery (2-3 working days) - £15
Orders must be placed before 14.00 for express and premium next day delivery.International Delivery
We offer a first class worldwide export service. Please contact us here for a price.
This website uses cookies to help make the site work better. If you continue without changing your settings we'll assume that you are happy to use all cookies on the Whisper Pumps website. Read more
POA