1.25 Sealed Systems Expansion... · unvented mains pressure hot water systems, which apply only to the secondary hot water supply side of a combined heating and hot water system

Sealed Systems

| 1.25

Heating vessel sizing guide

kw btu/hr 5 m (Litre) 10 m (Litre) 15 m (Litre)

10 34120 8 12 18

15 51180 12 18 24

20 68240 12 18 35

25 85300 18 25 35

35 119421 25 35 50

40 136480 35 35 80

0.5 bar 1.0 bar 1.5 bar

Vessel size per system static headBoiler output

vessel pre-charge (set by installer)

Sealed Systems

Sealed primary central heating systems are the most commonly used form of heating system throughout Europe and the rest of the developed world.

Sealed central heating systems should not be confused with unvented mains pressure hot water systems, which apply only to the secondary hot water supply side of a combined heating and hot water system.

From an installers viewpoint, therefore, there is no requirement to be registered or to notify any authority when fitting a sealed primary heating system.

The ease of installation of a sealed system makes it particularly attractive to the installer, eliminating the feed and expansion tank and associated pipework, and thus reducing the risk of corrosion and noise in the system.

Advantages can be summarised as follows;• System flexibility due to component siting alternatives.• Cost savings due to considerably reduced installation time.• No feed and expansion tank hence avoiding over pumping problems,riskoffreezingupetc.

• Longer life due to virtual elimination of corrosion problems.• Noise reduction due to higher system pressure, boiler noise

(localised boiling) is significantly reduced or eliminated.• Low maintenance costs as equipment is virtually maintenance

free, other than for periodic operational checks.

Essential Components and Location

Note:DomesticsealedheatingsystemsshouldtakedueaccountofthefollowingBritishStandards:BS 7074: Part 1: 1998–“Application,selectionandinstallationof expansion vessels and ancillary equipment for sealed water sytems–Part1.Codeofpracticefordomesticheatingand watersupply”.BS EN 12828: 2003–“Heatingsystemsinbuildings–Designforwaterbasedheatingsystems”.

Theessentialcomponentsforasealedsystemare:• Diaphragm Expansion Vessel(complyingwithBEEN13831:2007–“Closedexpansionvesselswithbuiltindiaphragmsforinstallationinwater”)

• Safety Valve (pressure relief valve)• Pressure Gauge• Filling Point (means for system filling, make-up and venting).

Also refer to the Altecnic

expansion vessel sizingcalculator

FREE on request.

www.altecnic.co.uk Altecnic Ltd - Caleffi group

1.26 | Sealed Systems - Robokits

Robokit extra sealed system - Nitrogen filled

• Sealedsystemkitcomprising:expansionvessel,fillingloop,safetyreliefvalvecompletewith gauge, mounting bracket to suit up to a 25 litre capacity and manifold fitting

Ref. no Vessel (Litre) Description

CA-900008 8 8 litre robokit extra





CA-900050CP 50 50 litre with legs robokit extra


CA-900025

Robokit sealed system kits & brackets

• Sealedsystemfillingkitcomprising:fillingloop,safetyreliefvalvecompletewithgauge,mounting bracket to suit up to 25 litre capacity and manifold fitting

• WaterregulationsG24.1and24.2compliantfillingloop

Ref. no Description

CA-900000 ½˝sealedsystemkit(for8litreto80litre)withtaperedvesselconnection

CA-900001 ¾˝sealedsystemkitwithtaperedvesselconnection

CA-100085 ½˝sealedsystemkitwithremoteSRV

(SRV remote from robokit)

CA-100000 ½˝sealedsystemkitwithoutbracket

CA-900000

Condensate/siphon trap

• SizeofCondensateTrapSize85mm(W)x100mm(H)x45mm(D)• MaxAmbientTemp65°C•75mm water seal

Ref. no Description

ALT-SBP001 Retro Fit Externally Mounting Boiler Condensate/siphon Trap & Wall Bracket

c/w inlet connection and discharge to suit solvent welded overflow pipe

NE800010 Condensate/siphon Trap only

LU-210580A01 Wall bracket only

NEWIMPROVED

To place an order T: 01785 218222 (Trade sales) T: 01785 218208 (OEM sales) E: [email protected]

ALT-SBP001

NE800010 LU-210580A01

Sealed Systems - Accessories | 1.27

Filling loops

Digital hand held pressure gauge

Ref. no Description

CA-300001 Robofil fill loop complete with PRV

CA-300606 Ecofilplusfillingloop(G24approved)

CA-300611 Ecofilplusfillingloop(G24approved)withcapsandcollars

CA-3006MI Tidyloopfillingloop(WRASapproved)

CA-3006MICA TidyloopPlusfillingloopwithcapsandcollars(WRASapproved)

YU-JQAL304 Capandcollarforfillingloop

JI-300608 Robofil(polybag-aswithrobokit)*

Ref. no Description

PVADG Digital hand held pressure gauge

• Usedtofillsealedsystemsfromthemainscoldwater• Approvedflexiblehosescompletewithcheckvalves• ComplywithwaterregulationsanduseWRASapprovedcomponents* Water regulation G24.1 and 24.2 compliant where indicated

Components for sealed system

Ref. no Description

502649 15mmautomaticairvent

312430 ½˝MxF3barsafetyreliefvalve

311430 ½˝FxF3barsafetyreliefvalve

311530 ¾˝FxF3barsafetyreliefvalve

313430 ½˝FxF3barsafetyreliefvalvewithpressuregauge

A314437CST ½˝MxF3barsafetyreliefvalvewithgaugeportonly

313530 ¾˝FxF3barsafetyreliefvalvewithgauge

A312401CST ½˝3barsafetyreliefvalve

A312438CST ½˝pushfitx½˝M3barsafetyreliefvalve

WI-557204 Pressure gauge for robokit

303915 Robo-quattro - 4 way manifold and double check valve

RS-MB Vessel mounting bracket 8 litre - 25 litre heating vessels

YU-JQAL324 Quattro8-80litre heating vessels

YU-JQAL326 Quattro80+litre heating vessels

A314437 CST

RS-MB

CA-300606

PVADG

CA-3006MICANEWIMPROVED


Expansion Vessels

1.28 |

The benefits of Nitrogen filled vessels

Nitrogen, a dry inert gas used in the Reflex range of expansion

vessels, improves the vessel’s life span by reducing corrosion

inside the vessel, and prevents loss of pre-charge pressure.

Nitrogen permeates through rubber slower than oxygen, is far

less reactive to both steel and aluminium and does not degrade

rubber prolonging the membrane life.

Oxygen in compressed air permeates through the membrane, thus

reducing the pre-charge pressure over time. During normal operation,

oxygen oxides the membrane in the vessel, causing under-inflation,

but dry Nitrogen will maintain proper inflation pressure and will not

corrode the inside of the vessel.

It’s recognised in the industry that oxidative aging is one of the

primary causes of decreased vessel life. Tests have shown that if

vessels are inflated with nitrogen, there is a significant reduction in

failure and increased vessel life.


Vessels

| 1.29

Potable water expansion vessels sizing

* Note system layouts are indicative only. Refer to relevant standards.

SRV Static Head

SRV Static Head

Heating expansion vessels sizing

Heating vessel calculation

V=Vesselsize

e=Coefficientofwaterexpansion

C=Systemvolumeinlitres

Pmax=SystempressureinBar

Pprec=PrechargepressureinBar

V =e x C

[1 - (Pprec + 0.3 + 1) ÷ (Pmax +1)]

Potable water vessel calculation

V=Vesselsize

e=Coefficientofwaterexpansion

C=Systemvolumeinlitres

Pmax=SystempressureinBar

Pprec=PrechargepressureinBar

Pmax=Thesetpressureofthesystem safetyreliefvalvetypically6Bar

Pprec=Thesetpressureofthesystem pressure reducing valve (typically 3 Bar)

V =e x C

[1 - (Pprec + 1) ÷ (Pmax + 1)]

Heating vessel sizing guide

kw btu/hr 5 m (Litre) 10 m (Litre) 15 m (Litre)

10 34120 8 12 18

15 51180 12 18 24

20 68240 12 18 35

25 85300 18 25 35

35 119421 25 35 50

40 136480 35 35 80

0.5 bar 1.0 bar 1.5 bar

Vessel size per system static headBoiler output

Vessel pre-charge (set by installer)

Also refer to the Altecnic

expansion vessel sizingcalculator

FREE on request.


Materials

Component Material

Shell Carbon Steel

Connections Carbon Steel

Diaphragm Synthetic rubber compound

Coating Powder Epoxy

Technical Specification

Test pressure 1.5 x max working pressure

Max. flow operating 120°C temperature

Max. vessel operating 70°C temperature

Factory pre-charge 1.5 bar - nitrogen

Accessories - Vessels 8 to 25 litres

Wall bracket with retaining strap - RS MB2

marked

Materials

Component Material

Shell Carbon SteelConnections Carbon SteelDiaphragm SBR synthetic rubberCoating Powder Epoxy

Technical Speci�cation

Max. working pressure 8 to 35 litres 3 bar50 to 140 litres 6 bar

Test pressure 1.5 x max working pressureMax. operating temperature 120˚CFactory air pre- egrahc 1.5 bar - nitrogen

Product Code Capacity ØD H h C Weight

litres mm mm mm Connection kgHV35C 35 376 465 130 R¾ 5.7HV50C 50 441 495 175 R¾ 7.5HV80C 80 512 570 175 R1 9.9HV100C 100 512 680 175 R1 11.2HV140C 140 512 895 175 R1 14.5

Product Code Capacity ØD H C Weight

litres mm mm Connection kgHV8C 8 272 235 R¾ 1.7HV12C 12 272 315 R¾ 2.3HV18C 18 308 365 R¾ 2.8HV25C 25 308 485 R¾ 3.5

ØD

H

h

C

35 to 140 litres

Dimensions

C

ØD

H

8 to 25 litres


Wall bracket with retaining strap - RS MB2

marked

Materials

Component Material

Shell Carbon SteelConnections Carbon SteelDiaphragm SBR synthetic rubberCoating Powder Epoxy

Technical Speci�cation

Max. working pressure 8 to 35 litres 3 bar50 to 140 litres 6 bar

Test pressure 1.5 x max working pressureMax. operating temperature 120˚CFactory air pre- egrahc 1.5 bar - nitrogen


litres mm mm mm Connection kgHV35C 35 376 465 130 R¾ 5.7HV50C 50 441 495 175 R¾ 7.5HV80C 80 512 570 175 R1 9.9HV100C 100 512 680 175 R1 11.2HV140C 140 512 895 175 R1 14.5


litres mm mm Connection kgHV8C 8 272 235 R¾ 1.7HV12C 12 272 315 R¾ 2.3HV18C 18 308 365 R¾ 2.8HV25C 25 308 485 R¾ 3.5

ØD

H

h

C

35 to 140 litres

Dimensions

C

ØD

H

8 to 25 litres

Dimensions

marked


litres mm mm mm Connection kgHV200W 200 634 760 205 R1 37HV250W 250 634 890 205 R1 45HV300W 300 634 1090 235 R1 52HV400W 400 740 1090 245 R1 65HV500W 500 740 1290 245 R1 79HV600W 600 740 1530 245 R1 85HV800W 800 740 1995 245 1R 103

ØD

H

h

C

200 and 250 litres

ØD

H

h

C

300 to 800 litres

Dimensions

marked


litres mm mm mm Connection kgHV200W 200 634 760 205 R1 37HV250W 250 634 890 205 R1 45HV300W 300 634 1090 235 R1 52HV400W 400 740 1090 245 R1 65HV500W 500 740 1290 245 R1 79HV600W 600 740 1530 245 R1 85HV800W 800 740 1995 245 1R 103

ØD

H

h

C

200 and 250 litres

ØD

H

h

C

300 to 800 litres

8 - 25 litres 35 - 140 litres

200 & 250 litres 300 - 800 litres

1.30 | Vessels - Heating Vessels


Heating expansion vessels 8 - 25 litres

Ref. no Capacity Diameter Height Connection Weight Max working (Litres) (Ø D mm) (H mm) (C inches) (kg) pressure (bar)

HV8C 8 272 235 R¾ 1.7 3

HV12C 12 272 315 R¾ 2.3 3

HV18C 18 308 365 R¾ 2.8 3

HV25C 25 308 485 R¾ 3.5 3

HV35C 35 376 465 R¾ 5.7 3

marked


Wall bracket with retaining strap - RS-MB



HV200W 200 634 760 R1 37 6

HV250W 250 634 890 R1 45 6

HV300W 300 634 1090 R1 52 6

HV400W 400 740 1090 R1 65 6

HV500W 500 740 1290 R1 79 6

HV600W 600 740 1530 R1 85 6

HV800W 800 740 1995 R1 103 6

marked

OEM heating vessels

• Flatvesselsforexpansiononheatingsystemsandboiler

Ref. no Capacity Model Description Width Height Length (Litres) (mm) (mm) (mm)

HV8F 8 541 Round flat exp vessel 324 Ø 129 n/a

HV10F 10 541 Round flat exp vessel 324 Ø 139 n/a

HV12F 12 541 Roundflatexpvessel 324Ø 169 n/a

NITROGEN

FILLED

VESSELS

NITROGEN

FILLED

VESSELS

Vessels - Heating Vessels | 1.31

HV25C

HV500W

HV8F



HV50C 50 441 495 R¾ 7.5 6

HV80C 80 512 570 R1 9.9 6

HV100C 100 512 680 R1 11.2 6

HV140C 140 512 895 R1 14.5 6

NITROGEN

FILLED

VESSELS

NITROGEN

FILLED

VESSELS


Dimensions

markedWRAS approved product

H

ØD

C

C

ØD

H

2 to 25 litres33 litres - with wall bracket

ØD

ØD

H

H

hC hC

50 to 500 litres 600 and 1000 litres


litres mm mm mm Connection kgPV50W 50 409 605 104 G1 9.5PV60W 60 409 740 152 G1 14PV80W 80 480 730 152 G1 16PV100W 100 480 835 152 G1 19PV140W 140 480 1015 145 R1 29PV200W 200 634 970 145 G1¼ 40PV300W 300 634 1270 145 G1¼ 54PV400W 400 740 1245 135 G1¼ 70PV500W 500 740 1475 135 G1¼ 79PV600W 600 740 1860 265 G1½ 103PV800W 800 740 2325 265 ½1G 195PV1000W 1000 740 2604 265 G1½ 228


litres mm mm Connection kgPV8W 8 206 325 G¾ 1.8PV12W 12 280 310 G¾ 2.4PV18W 18 280 380 G¾ 2.8PV25W 25 280 500 G¾ 4.7PV33W 33 354 455 G¾ 6.6

Dimensions


H

ØD

C

C

ØD

H


ØD

ØD

H

H

hC hC






Dimensions


H

ØD

C

C

ØD

H


ØD

ØD

H

H

hC hC






Dimensions


H

ØD

C

C

ØD

H


ØD

ØD

H

H

hC hC






Dimensions

ØD H

C

L

Product Code Capacity ØD L H C Weight

litres mm mm mm Connection kgPVH25W 25 280 484 294 G1 5.5PVH50W 50 409 492 433 G1 15PVH80W 80 480 562 504 G1 18PVH100W 100 480 667 504 G1 21

8 - 25 litres

600 - 1000 litres Horizontal range

50 - 500 litres33 litres

Materials

Component Material

Shell Carbon Steel

Connections Carbon Steel with plastic insert

Diaphragm Synthetic rubber compound



Max. working pressure 10 bar


Factory pre-charge - Vertical range 4.0 bar - nitrogen - Horizontal range 2.0 bar - nitrogen

System water BE EN ISO 228 - male

connection thread

- 140 litre size BE EN 10226 - male

- horizontal range BE EN ISO 228 - male

1.32 | Vessels - Potable Vessels


marked

Vertical potable water expansion vessels 8 - 33 litres

Ref. no Capacity Diameter Height Connection Weight Membrane (Litres) (Ø D mm) (H mm) (inches) (kg)

PV8W 8 206 325 G¾ 1.8 Fixed

PV12W 12 280 310 G¾ 2.4 Fixed

PV18W 18 280 380 G¾ 2.8 Fixed

PV25W 25 280 500 G¾ 4.7 Fixed

PV33W 33 354 455 G¾ 6.6 Fixed

marked

Vertical potable water expansion vessels 50 - 1000 litres

Ref. no Capacity Diameter Height Height Connection Weight Membrane (Litres) (Ø D mm) (H mm) (h mm) (inches) (kg)

PV50W 50 409 605 104 G1 9.5 Replaceable

PV60W 60 409 740 152 G1 14 Replaceable

PV80W 80 480 730 152 G1 16 Replaceable

PV100W 100 480 835 152 G 1 19 Replaceable

PV140W 140 480 1015 145 R 1 29 Fixed

PV200W 200 634 970 145 G1¼ 40 Replaceable

PV300W 300 634 1270 145 G1¼ 54 Replaceable

PV400W 400 740 1245 135 G 1¼ 70 Replaceable

PV500W 500 740 1475 135 G 1¼ 79 Replaceable

PV600W 600 740 1860 265 G1½ 103 Replaceable



NITROGEN

FILLED

VESSELS

marked

Horizontal potable water expansion vessels 25 - 100 litres

Ref. no Capacity Diameter Length Height Connection Weight (Litres) (Ø D mm) (L mm) (H mm) (inches) (kg)

PVH25W 25 280 492 298 G¾ 5.5

PVH50W 50 409 503 434 G 1 15

PVH80W 80 480 576 504 G1 18

PVH100W 100 480 681 504 G1 21

NITROGEN

FILLED

VESSELS

NITROGEN

FILLED

VESSELS

Vessels - Potable Vessels | 1.33

Accessories for expansion vessels

Ref. no Description

RS-MB2 Potable vessel mounting bracket 5 litre - 18 litre

RS-MB24 Potable vessel mounting bracket 25 litre only

CA-100700 Potable vessel bracket 33 litre only

PV33W

PV500W

PVH50W


A

CD

ØB

A

CD

ØB

8 to 25 litre 33 litre with wall bracket33 litres

1.34 | Vessels - Potable Vessels

Flowjet valve for potable water systems

Ref. no Description

PVACC1 ¾˝Flowjetvalve





Factory pre-charge - Vertical range 4.0 bar - nitrogen

System water BE EN ISO 228 - male

connection thread

Materials

Component Material

Shell Carbon Steel

Connections Stainless Steel

Bladder Synthetic rubber compound


marked

Flow through potable water expansion vessels 8 - 33 litres

Ref. no Capacity Diameter Height Connection Weight Membrane (Litres) (Ø D mm) (H mm) (inches) (kg)

PVA8G 8 206 335 G¾B 2.7 Fixed

PVA12G 12 280 325 G¾B 3.7 Fixed

PVA18G 18 280 395 G¾B 4.7 Fixed

PVA25G 25 280 515 G¾B 5.7 Fixed

PVA33G 33 354 465 G¾B 6.5 Fixed

NITROGEN

FILLED

VESSELS

Flow Through Series Potable Vessels

The flow through series of potable water vessels for the home are ideal for using with water heaters to save money. Water flows through the vessel, it has a stainless steel connection and thereby meets the ultra-exacting hygiene requirements of DIN 1988. The T piece required issuppliedwiththeunitandtheFlowjetflowthrough valve is optionally available.

8 - 25 litres

A

CD

ØB

A

CD

ØB

8 to 25 litre 33 litre with wall bracket

PVACC1

PVA8G

Dimensions

Prod Code Litres A B C kg

PV016C 0.16 R½ 85 112 0.34

PV05C 0.5 G½B 113 135 0.6

PV1C 1.0 G½B 120 197 0.9

C

AØB

AØB

C

C

AØB


PV2W 2.0 R1” 126 208 1.2

Dimensions


PV016C 0.16 R½ 85 112 0.34

PV05C 0.5 G½B 113 135 0.6

PV1C 1.0 G½B 120 197 0.9

C

AØB

AØB

C

C

AØB


PV2W 2.0 R1” 126 208 1.2

Mini expansion vessels 0.16 - 1 litre

Ref. no Capacity Diameter Height Connection Weight (Litres) (Ø B mm) (C mm) (A inches) (kg)

PV016C 0.16 85 112 R½ 0.34

PV05C 0.5 113 135 G½ 0.6

PV1C 1 120 197 G½ 0.9

0.16 litre 0.5/1 litre 2 litre



Max. system temperature 90°C

Pre-charge pressure - 0.16 litre 3.5 bar - 0.5 litre 4 bar

- 1 & 2 litre 4 bar

Materials

Component Material

Body and inlet connection - 0.16 & 2 litre Stainless steel

Body and inlet connection Noryl polymer

Membrane Chlorobutyl

A

C

ØB

Vessels - Mini Vessels | 1.35

Mechanical shock arrester

Ref. no Description Box quantity

525040 ½˝BSPmechanicaltype 25

525040

PV1C

PV016C

PV2W

•Minimumpressure:3bar


Mini expansion vessel 2 litre

Ref. no Capacity Diameter Height Connection Weight (Litres) (Ø B mm) (C mm) (A inches) (kg)

PV2W 2 132 260 G¾ 1.0

PV2Z 2 132 260 G½ 1.0


1.36 | Vessels - General/Accessories

Temperature / pressure relief valves

Ref. no Connections Set pressure (bar) Probe length (mm)

309400CST ½˝Mx15mmCompression 10 102








309500CST ¾˝Mx22mmCompression 10 99








309473CST ½˝MParallelx15mmCompression 7 97

Pressure and temperature relief valves for use when the system calls for two controls. Designed for use on unvented hot water supply systems.

309473 CST

Water heater accessory packs

Ref. no Description

CA-100148 Water heater pack 1 includes:

1x½˝PRVat3.5bar,1xexpansionvessel2litre,

1x½˝SRVat6bar312460,1x15mmsinglecheckvalve


1xexpansionvessel2litre,1x½˝safetyvalve,1x15mmsinglecheckvalve


1x½˝PRVat3.5bar,1xexpansionvessel2litre,1x15mmsinglecheckvalve


1 x expansion vessel 2 litre, 1 x 15mm single check valve


1x22mmx¾˝PRVat3.5bar,1xSRVpushfitat6bar

Installation packs suitable for installation of single / multipoint water heaters.

NITROGEN

FILLED

VESSELSCA-100148

Tundishes

Ref. no Description

*AP-400001 ½˝Mx¾˝Fplasticangletundish

*AP-400002 ¾˝Mx1˝Fplasticangletundish

*AP-400003 ¾˝Mx½˝Fplasticstraighttundish

* AL-400010 15mm x 22mm straight tundish with plastic nuts

552140 ½˝anglealuminiumtundishMxF

552150 ¾˝anglealuminiumtundishMxF

552160 1˝x1¼˝anglealuminiumtundishMxF

552050 ¾˝straightaluminiumtundishFxF

552070 1¼˝straightaluminiumtundishFxF

CA-100113 22mmx1˝Fplasticstraighttundishwithnutandolive

Suitable for use where air gap or air break is required in sealed or unvented systems.

*

AL-400010

Vessels - General/Accessories | 1.37


Documents

1.25 Sealed Systems Expansion... · unvented mains pressure hot water systems, which apply only to the secondary hot water supply side of a combined heating and hot water system