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Tiemme 4739SUN Fail Safe Solar Mixing Valve 22mm Compression
£63.86 / €74.72
Please note valve is for a complete domestic system
Tiemme 4739SUN Fail Safe Solar Mixing Valve
22mm Compression Connections
Maximum Flow 31 l/m
Used for the potable water side to prevent scalding
Mixes Hot & Cold water to give you a constant regulated hot water supply
Fails safe to cold
Adjustable temperature 30C to 55C
Maximum Pressure 10 Bar
Maximum Temperature 100'C
Material Brass to EN12165
Conforms to EN1111
Minimum Flow requirement of 10 L/m
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Flexible Panel Connection / Expansion Joint
£8.33 / €9.75
Connection expansion joint for connecting multiple panels in series.
Details
316L Stainless Steel
DN20 buffer tube with 22mm smooth ends for compression connection.
69mm in Length
DN20 Pipe
22mm smooth ends
19mm Internal bore
15mm length Smooth 22mm end for compression
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Fill & Drain Valve 1/2" High Temperature
£6.71 / €7.85
Fill & Drain Valve 1/2"
Max pressure 16 bar,
working temperature to 180'C,
1/2"M with lock nut and built in seal washer
3/4"M complete with hose adaptor and cover sealing plate
Material Brass CW617N
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22mm Stub to Flat Face 1"M Adaptor
£3.97 / €4.64
Tiemme 1"M (DN20) Flat Face adaptor to 22mm Stub.
For use with 22mm compression fittings
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Silicone Protection Tape
£6.67 / €7.80
Silicone Protection Tape
Used to cover and protect external insulation.
This black silicone tape is NOT effected by UV light and adds a protective layer to external insulation. The special silicone compound will only bond to itself, requiring no messy glue compounds that could be damaging to high temperature insulation.
The tape is applied by over lapping the joint which then forms an impervious barrier and protects the insulation from both the elements and bird attack.
Because this tape is manufactured from a silicone compound, it can come into contact with hot surfaces like the solar collector.
Width 38.1mm (1½")
Length 3.048Mtrs (10Ft)
Silicone Tape withstands up to 260'C
Remains flexible to -50'C
Can stretch to over 300% (conforms to irregular shapes)
No adhesive (is self bonding)
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Test Approvals
Online Catalogue | JUST Solar Collectors | ENSOL ES Series Flat Plate Collectors Selective Coated | Test Approvals
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Certification of solar collectors.
Like most things in life there are plenty of sales people and companies trying to make a quick buck and sell you a cheap product for lots of money, "trust me" "trusted advice" always seem to be common phrases.
Europe / The UK Government set certain standards for solar collectors in order to protect people and ensure they get value for money.
The main test standard for a solar collector is EN12975-1, this test standard means that the solar collectors are tested in a live situation by an approved test laboratory (TUV, SPF, Fraunhofer & many more) they pass or fail and the results are published.
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These tests look at: The collector efficiency, capacity of collector, internal pressure test, high temperature pressure test, exposure test, external thermal shock, internal thermal shock, rain penetration, freeze resistance, mechanical load and stagnation.
However, these tests will only confirm that the collector meets a minimum efficiency standard, but to compare the performance of collectors you need to dig a little deeper - but it is not difficult.
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| ASK- if the solar collector you intend to buy doesn't have the basic approval to EN12975 there is a reason!!!!!!!!!!!!!!. Under test is a common way to fool people into believing it is OK, if that's the case wait until it's approved. |
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Solar KeyMark and BRE Global
Solar KeyMark - International standard
BRE Global - UK version
These additional but optional tests/controls, show that the product you are buying is the same as the product which went through the EN12975-1 approval test process.
This test looks firstly at the solar collector and then at the manufacturing facility. In order for the manufacturing facility to be approved it must show to an inspector that it has the correct manufacturing and business quality assurance processes and procedures to make the same products to the same standard time after time. This control is remade on an annual basis to ensure the same standards are maintained.
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Online Catalogue | JUST Solar Collectors | ENSOL ES Series Flat Plate Collectors Selective Coated | Test Approvals
