Part Number: 21192
Manufacturer's Part Number: 11A0000200
The Zilmet Expansion Vessel for Unvented Hot Water - 2 Litres is a potable water expansion vessel designed to accommodate pressure changes in unvented hot water systems. Equipped with a durable butyl bladder membrane, it ensures safe operation by absorbing water expansion, maintaining system integrity.
Manufactured to meet the standards of PED 2014/68/EU and BS EN 13831, this vessel is WRAS and CE approved, ensuring compliance with UK regulations for potable water systems.
It features a 1/2" BSP PM connection and has a precharge pressure of 3.5 bar, adjustable to meet specific cylinder or water heater requirements.
Constructed with dimensions of 230 mm in height and 142 mm in diameter, the vessel is designed for easy installation in compact spaces.
Suitable for maximum operating pressures of up to 10 bar and temperatures reaching 99°C, making it ideal for various hot water applications.
The Zilmet Expansion Vessel for Unvented Hot Water - 2 Litres is a reliable and compact solution for managing pressure changes in unvented systems. With its butyl bladder membrane, high compliance standards, and compact design, it ensures efficient pressure control, making it suitable for potable water systems.
PLEASE NOTE: Check pre-charge pressure meets cylinder/water heater requirements
Alternative Options available.
Benefits
- Compact design saves space during installation
- Butyl bladder membrane optimizes pressure absorption
- Adjustable precharge adapts to system requirements
- WRAS and CE approval ensures compliance
- Handles up to 10 bar for reliable high-pressure use
- Withstands temperatures up to 99°C
- Durable build for long-lasting performance
- Simple 1/2" BSP connection for easy integration
- Meets requirements of PED 97/23/EU directive and BS EN 13831
Specification
Brand | Zilmet |
Sub Brand | Potable |
Approved by | WRAS & CE |
Manufactured/Approved To | PED 2014/68/EU & BS EN 13831 |
Connection | 1/2" BSP PM |
Dimensions | H x 230 x 142 dia. mm |
Expansion Vessel | Potable |
Max. Operating Pressure | 10 bar |
Max. Temperature | 99°C |
Potable | Yes |
Precharge Pressure | 3.5 bar |
Size | 2 litres |
Type | Expansion Vessel |
Weight | 1.22 kg |
Questions
Ask a Question
- Looking for more information?
- Ask a question and our experts will answer it.
Delivery
FREE DELIVERY OVER £50
NEXT DAY TO MAINLAND UK
Most UK deliveries - see below for details
Order by 9pm Monday - Friday for next working day delivery.
Subject to change
Small Parcel | Large Parcel | Pallets < 800 kilos |
Pallets >= 800 kilos |
|
---|---|---|---|---|
UK mainland (except Scottish Highlands and some other areas) |
Next day | Next day | 2 to 3 days | 2 to 3 days |
Scottish Highlands, UK Islands, some other areas |
2 to 3 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
Northern Ireland | 1 to 2 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
Channel Islands, Isle of Man and Republic of Ireland | 2 to 3 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
EU | 2 to 5 days | 2 to 5 days | 2 to 5 days | 2 to 5 days |
Rest of World | Please enquire |
Please enquire |
Please enquire |
Please enquire |
Delivery is FREE for orders with a value of over £50 (excluding VAT) which are despatched by B.E.S.’s usual means in one consignment. Orders of £50 and under (excluding VAT) will incur a delivery charge of £4.95 plus VAT.
We are happy to arrange for delivery of the Goods on your behalf other than by our usual means, however, any additional charges involved will need to be borne by you.
Whilst we make every effort to deliver Goods within the estimated timescales, delays are, however, occasionally inevitable as they may depend, among other things, on availability of the Goods. We shall not be liable for any delay in delivery of the Goods where the delay is beyond our control.
Although any dates quoted for delivery of the Goods are approximate only, the following delivery times are in our experience usual (these estimates exclude Saturdays, Sunday and public holidays):
We always aim to deliver Goods as near to our estimated times as possible and in any event within 30 days of entering into a contract with you. Where we are unable to deliver the Goods within this time, we will inform you of this. You will be free in this case to cancel the contract and we will reimburse you in full as soon as possible and in any event within 30 days of cancellation.
For delivery times to countries outside the UK, please contact us. We regret that there may be countries outside the UK to which we will not deliver Goods.
Please note that delivery may be made in instalments.
Delivery and packaging
Time for delivery is given as accurately at possible but is not guaranteed. The Customer shall have no right to damages or to cancel the order for failure for any cause to meet any delivery time stated nor shall the Customer be entitled to make, or to purport to make, time for delivery of the essence of the contract.
The date of delivery shall in every case be dependant upon prompt receipt of all necessary information final instructions or approvals from the Customer. Any delays or alternations by the Customer in design, specifications or quantities required may result in delay in delivery.
Failure by the Customer to take delivery of or to make payment in respect of any one or more instalments of Goods delivered under this contract shall entitle the Company to treat the whole or part of the contract as repudiated by the Customer.
The Company will endeavour to comply with reasonable requests by the Customer for postponement of delivery but shall be under no obligation to do so. Where delivery is postponed otherwise than due to the default by the Company, the Customer shall pay all costs and expenses, including a reasonable charge for storage and transportation so occasioned and payment for the Goods shall be made in accordance with these Conditions.
Any packaging by the Company, unless otherwise expressly agreed in writing is intended to provide adequate protection in normal conditions of transit of usual duration. Unless otherwise agreed in writing, cases and other packing materials, when charged for, will be credited if returned to the Company's works within 28 days of the date of invoice, carriage paid and in good condition.
The Company will not be liable for unloading the Goods at the designated point of delivery or for placing them in position on site, except by prior agreement in writing.
Where the Company accepts an order for the supply of Goods to be called off by the Customer over a period then unless otherwise agreed by the Company in writing, such call offs must be made so as to complete delivery of all Goods within 12 months from the date of the Customer's order.
The Company shall have the right to make delivery by instalments and in that event each delivery shall stand as a separate contract and failure to make any instalment delivery shall not entitle the Customer to repudiate the whole contract.
Unless otherwise agreed in writing, whether or not the Company shall arrange transport by its own vehicles or otherwise, delivery shall be effected when the Goods leave the premises of the Company or those of the suppliers to the Company where the Goods are despatched direct from such suppliers premises to the Customer.
Any delivery note or notes presented by or on behalf of the Company and/or its carrier must be signed on receipt of the Goods.
If the Customer requires an alteration in the quantity of an order including suspension or reduction of "firm" schedules then all Goods already in progress may be delivered in accordance with the earlier instructions of the Customer and shall be paid for by the Customer.
If and so far as work has been necessarily commenced in advance of "firm" schedules in order to provide in accordance with a normal process time cycle for deliveries indicated by a "tentative schedule" the Customer shall be liable to accept delivery of such Goods at the times and in the quantities so indicated and to pay therefor.
Save in the case of export contract all pallets and stillages used by the Company in the delivery of the Goods shall remain the property of the Company and shall be returned by the Customer to the Company. Section 32(2) of the Sale of Goods Act 1979 shall not apply. The Company shall not be required to give the Customer the notice specified in section 32(3) of that Act.
Specification
Brand | Zilmet |
Sub Brand | Potable |
Approved by | WRAS & CE |
Manufactured/Approved To | PED 2014/68/EU & BS EN 13831 |
Connection | 1/2" BSP PM |
Dimensions | H x 230 x 142 dia. mm |
Expansion Vessel | Potable |
Max. Operating Pressure | 10 bar |
Max. Temperature | 99°C |
Potable | Yes |
Precharge Pressure | 3.5 bar |
Size | 2 litres |
Type | Expansion Vessel |
Weight | 1.22 kg |
Questions
Delivery
FREE DELIVERY OVER £50
NEXT DAY TO MAINLAND UK
Most UK deliveries - see below for details
Order by 9pm Monday - Friday for next working day delivery.
Subject to change
Small Parcel | Large Parcel | Pallets < 800 kilos |
Pallets >= 800 kilos |
|
---|---|---|---|---|
UK mainland (except Scottish Highlands and some other areas) |
Next day | Next day | 2 to 3 days | 2 to 3 days |
Scottish Highlands, UK Islands, some other areas |
2 to 3 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
Northern Ireland | 1 to 2 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
Channel Islands, Isle of Man and Republic of Ireland | 2 to 3 days | 2 to 3 days | 2 to 3 days | 2 to 3 days |
EU | 2 to 5 days | 2 to 5 days | 2 to 5 days | 2 to 5 days |
Rest of World | Please enquire |
Please enquire |
Please enquire |
Please enquire |
Delivery is FREE for orders with a value of over £50 (excluding VAT) which are despatched by B.E.S.’s usual means in one consignment. Orders of £50 and under (excluding VAT) will incur a delivery charge of £4.95 plus VAT.
We are happy to arrange for delivery of the Goods on your behalf other than by our usual means, however, any additional charges involved will need to be borne by you.
Whilst we make every effort to deliver Goods within the estimated timescales, delays are, however, occasionally inevitable as they may depend, among other things, on availability of the Goods. We shall not be liable for any delay in delivery of the Goods where the delay is beyond our control.
Although any dates quoted for delivery of the Goods are approximate only, the following delivery times are in our experience usual (these estimates exclude Saturdays, Sunday and public holidays):
We always aim to deliver Goods as near to our estimated times as possible and in any event within 30 days of entering into a contract with you. Where we are unable to deliver the Goods within this time, we will inform you of this. You will be free in this case to cancel the contract and we will reimburse you in full as soon as possible and in any event within 30 days of cancellation.
For delivery times to countries outside the UK, please contact us. We regret that there may be countries outside the UK to which we will not deliver Goods.
Please note that delivery may be made in instalments.
Delivery and packaging
Time for delivery is given as accurately at possible but is not guaranteed. The Customer shall have no right to damages or to cancel the order for failure for any cause to meet any delivery time stated nor shall the Customer be entitled to make, or to purport to make, time for delivery of the essence of the contract.
The date of delivery shall in every case be dependant upon prompt receipt of all necessary information final instructions or approvals from the Customer. Any delays or alternations by the Customer in design, specifications or quantities required may result in delay in delivery.
Failure by the Customer to take delivery of or to make payment in respect of any one or more instalments of Goods delivered under this contract shall entitle the Company to treat the whole or part of the contract as repudiated by the Customer.
The Company will endeavour to comply with reasonable requests by the Customer for postponement of delivery but shall be under no obligation to do so. Where delivery is postponed otherwise than due to the default by the Company, the Customer shall pay all costs and expenses, including a reasonable charge for storage and transportation so occasioned and payment for the Goods shall be made in accordance with these Conditions.
Any packaging by the Company, unless otherwise expressly agreed in writing is intended to provide adequate protection in normal conditions of transit of usual duration. Unless otherwise agreed in writing, cases and other packing materials, when charged for, will be credited if returned to the Company's works within 28 days of the date of invoice, carriage paid and in good condition.
The Company will not be liable for unloading the Goods at the designated point of delivery or for placing them in position on site, except by prior agreement in writing.
Where the Company accepts an order for the supply of Goods to be called off by the Customer over a period then unless otherwise agreed by the Company in writing, such call offs must be made so as to complete delivery of all Goods within 12 months from the date of the Customer's order.
The Company shall have the right to make delivery by instalments and in that event each delivery shall stand as a separate contract and failure to make any instalment delivery shall not entitle the Customer to repudiate the whole contract.
Unless otherwise agreed in writing, whether or not the Company shall arrange transport by its own vehicles or otherwise, delivery shall be effected when the Goods leave the premises of the Company or those of the suppliers to the Company where the Goods are despatched direct from such suppliers premises to the Customer.
Any delivery note or notes presented by or on behalf of the Company and/or its carrier must be signed on receipt of the Goods.
If the Customer requires an alteration in the quantity of an order including suspension or reduction of "firm" schedules then all Goods already in progress may be delivered in accordance with the earlier instructions of the Customer and shall be paid for by the Customer.
If and so far as work has been necessarily commenced in advance of "firm" schedules in order to provide in accordance with a normal process time cycle for deliveries indicated by a "tentative schedule" the Customer shall be liable to accept delivery of such Goods at the times and in the quantities so indicated and to pay therefor.
Save in the case of export contract all pallets and stillages used by the Company in the delivery of the Goods shall remain the property of the Company and shall be returned by the Customer to the Company. Section 32(2) of the Sale of Goods Act 1979 shall not apply. The Company shall not be required to give the Customer the notice specified in section 32(3) of that Act.
Hello there
You have added
You might also like
-
Mini Expansion Vessel Shock Arrestor - 1/2" BSP TM
Part Number: 11355
Was £24.31 £20.26 Now £16.19 £13.49Save £8.12 £6.77 (33%)
Product Options
Related Products




Part Number :
22045



Part Number :
11355Save £8.12 £6.77 (33%)




Part Number :
23632



Part Number :
22301Save £1.74 £1.45 (11%)




Part Number :
10480



Part Number :
17527



Part Number :
8097



Part Number :
8121Save £1.03 £0.86 (20%)




Part Number :
8151Save £0.40 £0.33 (10%)




Part Number :
7523



Part Number :
17643