Direct on Mains (DOM) Unvented Kit Components Literature

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Direct on Mains (DOM) Unvented Kit Components Literature STOKVIS ENERGY SYSTEMS 96R WLTON ROD EST MOLESEY SURREY KT8 0DL Tel: 020 8783 3050 /

1 Direct on Mains (DOM) Unvented Kit Components Literature STOKVIS ENERGY SYSTEMS 96R WLTON ROD EST MOLESEY SURREY KT8 0DL Tel: / Fax: / info@stokvisboilers.com Website: DOM DC Page 1 of 18

2 Contents Page 2 Page 3 to 4 Page 5 to 6 Page 7 to 8 Page 9 to 10 Page 11 Page 12 to 13 Page 14 to 17 Contents & General Safety Valve (Fig500) Temperature & Pressure (T&P) Relief Valve (Fig500T) nti-vacuum Valve (DMT) Double Check Valve (FLOW) Pressure Gauge (GGE) Pressure Reducing Valve (PRED) Expansion Vessel (XVES) General: n unvented kit of components, required by Part G3 of the uilding Regulations 2000 amended in 2010 and complying with any Installation Requirements for ylaw Compliance, can be provided when the cold feed is boosted or mains fed. Please refer to individual data sheets for product technical specification including maximum operating pressures and temperatures. The information contained within this document has been collated from various sources and to the best of our knowledge was correct at the time of print. Page 2 of 18

NIC HIGH LIFT SFETY VLVE Fig 500 PPLICTIONS The Fig 500 High Lift Safety Valve has been designed primarily for use on unvented hot water heating systems, where a high capacity, emergency steam relief

3 NIC HIGH LIFT SFETY VLVE Fig 500 PPLICTIONS The Fig 500 High Lift Safety Valve has been designed primarily for use on unvented hot water heating systems, where a high capacity, emergency steam relief capability is required. High capacity and resilient PTFE seating, also make the Fig 500 ideal for steam, air and inert gas applications. PTFE to Viton seating design is also available where greater seal tightness is required. DIMENSIONS CONSTRUCTION The Fig 500 is constructed in gunmetal, with diaphragm protected working parts and PTFE to metal seating. ll wetted parts are manufactured from dezincification resistant materials, approved by the Water Research Centre for use on potable water. Standard inlet and outlet connections have female threads to S 21, with the outlet connection one size larger than the inlet. Sizes from DN20 upwards, are available with flanged inlet connections; other thread forms are also available. For other specific technical requirements refer to drawing 704 or consult Nabic technical department. FETURES C R2 R1 ODY MTERIL MXIMUM SET PRESSURE MXIMUM TEMPERTURE : GUNMETL : 12.5 bar : 195 deg C RESILIENT PTFE SETING DESIGN HIGH DEGREE OF SET TIGHTNESS SUITLE FOR HOT WTER, STEM ND IR D HIGH DISCHRGE CPCITY DIPHRGM PROTECTED WORKING PRTS SIZE R1 R2 C D DN SP SP mm mm mm mm 10 3/8 1/ /2 3/ / / SFE MNUL TESTING ESY INSPECTION ND CLENING PRESSURE SETTING LOCKED & SELED DESIGNED ND TESTED TO S 6759 CPCITIES CERTIFIED Y OTC /4 1 1 / / / / PPROVED Y WTER RESERCH CENTRE UKWFS LISTED PDLOCK VILLE NIC Page 3 of 18

4 DISCHRGE CPCITIES The discharge capacity of a safety valve must be equal to or greater than the output of the boiler or system it is protecting. Fig 500 capacities are tabulated below to assist selection. HOT WTER - UNVENTED SYSTEM - 10% OVERPRESSURE SET kw PRESSURE R DN10* DN15* DN20 DN25 DN32 DN40 DN50 DN To convert to tu/hr multiply by 3,400 The capacities tabulated are for unvented (pressurised or sealed) heating systems. For vented systems we generally recommend the use of Fig 542 Safety Relief Valves. Fig 500 Safety Valves can be used for high output systems where its greater discharge capacity is advantageous. For unvented hot water supply systems, Fig 500T Combined Pressure & Temperature Relief Valves should be used. STEM - 10% OVERPRESSURE SET kg/hr PRESSURE R DN10* DN15* DN20 DN25 DN32 DN40 DN50 DN To convert to lb/hr multiply by 2.2 * The minimum bore size permitted by S specifications for steam and hot water boilers is 20mm. Capacities given for the smaller sizes in the above tables, are for applications outside the scope of these standards. a a a a a IR - 10% OVERPRESSURE SET std. litres/sec PRESSURE R DN10* DN15* DN20 DN25 DN32 DN40 DN50 DN To convert to ft 3 /min multiply by 2.1 In all of the above tables, the discharge capacities have been calculated in accordance with S 6759, using a derated coefficient of discharge (Kdr) of 0.479, approved by OTC. NIC Page 4 of 18 We reserve the right to introduce design changes and make amendments to information without prior notification. DOC: TD3/05/00

NIC COMINED PRESSURE & TEMPERTURE RELIEF VLVE Fig 500T PPLICTIONS The Fig 500T Combined Pressure & Temperature Relief Valve has been designed for use on unvented hot water supply systems, where

5 NIC COMINED PRESSURE & TEMPERTURE RELIEF VLVE Fig 500T PPLICTIONS The Fig 500T Combined Pressure & Temperature Relief Valve has been designed for use on unvented hot water supply systems, where protection against excess temperature is required in addition to pressure protection. Pressure and temperature elements of the valve operate independently, thereby providing dual safety protection in the one valve. DIMENSIONS CONSTRUCTION The Fig 500T is of gunmental construction, with diaphragm protected working parts and resilient viton seating. ll wetted parts are manufactured from dezincification resistant materials, approved by the Water Regulations dvisory Scheme for use on potable water. Inlet and outlet connections are of equal size and threaded to S 21, with the inlet connection male and the outlet female. For other specific technical requirements consult Nabic technical department. FETURES R RESILIENT VITON SETING DESIGN C HIGH DISCHRGE CPCITY POWERFUL THERMOSTT R D DUL SFETY PROTECTION DIPHRGM PROTECTED WORKING PRTS SIZE R C D DN SP mm mm mm mm SFE MNUL TESTING 15 3/ ODY MTERIL : GUNMETL ESY INSPECTION ND CLENING MXIMUM SET PRESSURE : 12.5 bar PRESSURE SETTING LOCKED / MXIMUM TEMPERTURE : 95 deg C & SELED / MXIMUM WORKING TEMP : 75 deg C DESIGNED ND TESTED TO S WTER REGULTIONS DVISORY / SCHEME PPROVED PRODUCT NIC Page 5 of 18

6 DISCHRGE CPCITIES The discharge capacity of a safety valve must be equal to or greater than the output of the boiler or system it is protecting. Two methods of sizing are employed for combined pressure & temperature relief valves; one, based on the pressure element of the valve, the other, based on the temperature element. To ensure that the correct method is used, reference should be make to the relevent S specification to the design of the boiler or system. If in doubt, choose the method which produces the lower rating. TEMPERTURE RTING SIZE DN15 DN20 DN25 DN32 DN40 DN50 kw To convert to tu/hr multiply by 3400 The above discharge capacities represent approximately 45% of the relief capability of the value, when steam at a pressure of 1 bar causes the thermostat to open the valve. SET PRESSURE R PRESSURE RTING kw DN15 DN20 DN25 DN32 DN40 DN To convert to tu/hr multiply by 3400 The above discharge capacities have been calculated in accordance with S 6759:Part 1, using a derated coefficient of discharge (Kdr) of They represent the steam relief capability of the pressure element of the valve at 10% overpressure. NIC NIC VLVE SFETY PRODUCTS LTD Stretford Road, Manchester, M16 9R Tel: Fax: salesteam@brownall.co.uk Website: Page 6 of 18 We reserve the right to introduce design changes and make amendments to information without prior notification. DOC: TD4/04/02

utomatic nti-vacuum Valves Specification Sheet The Safety Valve Specialist Features and enefits Gives automatic protection against a vacuum forming in

compact range of nti-vacuum Valves for use with hot water heaters to prevent a vacuum forming in installations where there is the potential for the

The valves contain a check cartridge which, under normal conditions, is held closed by the system pressure, but when a vacuum condition arises the

7 utomatic nti-vacuum Valves Specification Sheet The Safety Valve Specialist Features and enefits Gives automatic protection against a vacuum forming in hot water installation Solid brass body for long life Easy access to the internals from the top of the valve Quick and simple to service Description compact range of nti-vacuum Valves for use with hot water heaters to prevent a vacuum forming in installations where there is the potential for the draw off rate to exceed the rate of flow to the inlet; this can occur in properties with multiple outlets below the base of the hot water heater. The valves contain a check cartridge which, under normal conditions, is held closed by the system pressure, but when a vacuum condition arises the suction will cause the check cartridge to open and air to flow through, equalising the pressure within the hot water heater. Page 7 of 18 DMT /11 P1

8 utomatic nti-vacuum Valves Specification Sheet The Safety Valve Specialist Specifications Maximum working pressure 16bar Maximum Temperature: DMT C DMT , 004, C Opening Pressure 0.05bar Dimensions C C pprovals WRS Product Codes DMT ½"MSP utomatic nti-vacuum Valve DMT ¾"MSP utomatic nti-vacuum Valve DMT mm utomatic nti-vacuum Valve DMT mm utomatic nti-vacuum Valve DMT DMT Typical Installation Temperature, pressure and vacuum relief valve Product Code C DMT ½" MSP DMT ¾" MSP ll dimensions shown in mm unless otherwise stated Vacuum relief valve Drain pipe C T-piece T-piece Water heater To hot water outlets below the base of the water heater To inlet controls Reliance Water Controls Ltd Reliance Worldwide Company Worcester Road, Evesham, Worcestershire, WR11 4R, UK. UK Freephone: Freefax: Outside UK Tel: +44 (0) Fax: +44 (0) sales@rwc.co.uk Page 8 of 18 Product Code C DMT mm DMT mm ll dimensions shown in mm unless otherwise stated Reliance reserves the right to make changes to the product and the information contained in this leaflet at any time. DMT /11 P2 Reliance Water Controls Ltd 2011

9 Product Specification Sheet Floguard Double Check Valves Lightweight, compact double check valves for Class 3 contamination risks. Product Features and enefits Double check valves protect against the risk of back-flow and backsyphonage contaminations. Compact lightweight construction for easy installation. llows high flow rate with minimum pressure drop, giving good flow rates. Ideal for all Class 3 contamination risks as per Water Supply (water fittings) Regulations vailable with a comprehensive selection of FSP and compression type connections. Integral test point for monitoring correct functioning of the downstream check valve. WRS pproved Conform to S 6282 Part1 FLOWDCV /11 P1 Page 9 of 18

10 Floguard Double Check Valves Description The Floguard range of double check valves are used for the prevention of back-flow and back-syphonage contamination risks in accordance with the Water Supply (water fittings) Regulations Manufactured from DZR brass the WRS approved Floguard range is supplied unplated with the exception of the Minislim, which can be supplied nickel plated. Dimensions R D R Product Range FLOW : FLOW : FLOW : FLOW : FLOW : FLOW : FLOW : FLOW : FLOW : FLOW : Materials ody: Seals: Check Cartridges: Spring: Standards Conforms to S 6282 Part 1 15mm Floguard Minislim DCV 15mm Floguard Minislim DCV (Nickel Plated) 22mm Floguard Compact DCV 28mm Floguard DCV 1/2 FSP Floguard DCV 3/4 FSP Floguard DCV 1 FSP Floguard DCV 1.1/4 FSP Floguard DCV 1.1/2 FSP Floguard DCV 2 FSP Floguard DCV DZR rass NR Elastomer cetyl Copolymer Stainless Steel pprovals WRS pproval Number : Product Code Connection FLOW mm FLOW mm FLOW mm FLOW mm Product Code Connection FLOW /2" FSP FLOW /4" FSP FLOW " FSP FLOW /4" FSP FLOW /2" FSP FLOW " FSP Specifications Working pressures: Maximum temperature: 85ºC 0.1 bar min. 16 bar max. How to Specify Double Check Valve supplied in DZR rass or nickel plated, with FSP or compression type connections, to protect against backflow and back-syphonage Class 3 contamination risks (include correct product range code). FLOWDCV /11 P2 Page 10 of 18

Pressure Gauge GGE 250 001 50mm Dial, 0-6ar, ¼ MSP ack Inlet Connection. Specification: Case: Impact resistant S. Window: Shatter resistant acrylic with adjustable red pointer. Connection: rass.

11 Pressure Gauge GGE mm Dial, 0-6ar, ¼ MSP ack Inlet Connection. Specification: Case: Impact resistant S. Window: Shatter resistant acrylic with adjustable red pointer. Connection: rass. Sensitive Element: Sealed alloy ourdon tube. Mechanism: High precision watchmaker s brass. Joints: Soldered with tin alloy. Dial: Stoved enamel on aluminium. ccuracy: Class 2.5. Dual Scale: ar (outer) & PSI (inner). GGE STK We reserve the right to make changes to our products which may affect the accuracy of the information contained in this document. Page 11 of 18

PRESSURE REDUCING VLVES 315i Commercial Pressure Reducing Valve range of commercial pressure reducing valves, incorporating a unique indicator so the set pressure can be identified easily without the

12 PRESSURE REDUCING VLVES 315i Commercial Pressure Reducing Valve range of commercial pressure reducing valves, incorporating a unique indicator so the set pressure can be identified easily without the need for a pressure gauge. Features and enefits Easy-to-read pressure indicator Robust design Fully serviceable strainer Suitable for hot and cold supplies Product Range PRED " MSP dj bar 315i PRV PRED ¼" MSP dj bar 315i PRV PRED ½" MSP dj bar 315i PRV PRED " MSP dj bar 315i PRV Dimensions C Part Code PRED PRED PRED PRED PRED PRED PRED PRED PRED C (mm) (mm) Page 12 of 18 C (mm) PRV P1

13 PRESSURE REDUCING VLVES Materials ody DZR brass Internal Components DZR brass Seals EPDM Strainer Stainless steel Diaphragm EPDM Cover S pprovals & Standards WRS DVGW SEN 1567 Specify as Product code: PRED 315 (select appropriate) WRS approved pressure reducing valve with full flow strainer and all working components contained in a cartridge form, with two downstream test points. Clear pressure indicator on side of cartridge. Suitable for commercial applications. Specifications Maximum working pressure 25bar djustable set pressure bar Pressure reduction ratio 10:1 Maximum temperature 70 C Flow Characteristics 7 70% back pressure Open outlet Red = 15mm / 1/2 lue = 22mm / 3/4 Green = 25mm / 1 6 Pressure Drop (ar) Flow Rate (l/min) % back pressure Open outlet Red = 1 1/4 lue = 1 3/4 Green = 2 6 Pressure Drop (ar) Flow Rate (l/min) Page 13 of

PRESSURE REDUCING VLVES 6247 Commercial/Industrial Pressure Reducing Valve High flow rate pressure reducing valve, which provides accurate pressure control for commercial or industrial applications.

14 PRESSURE REDUCING VLVES 6247 Commercial/Industrial Pressure Reducing Valve High flow rate pressure reducing valve, which provides accurate pressure control for commercial or industrial applications. Features and enefits ccurate pressure control Robust design One piece cartridge Upstream and downstream test points Product Range PRED DN65 djustable 6247 PRV PRED DN80 djustable 6247 PRV PRED DN100 djustable 6247 PRV Materials ody ronze Cover Seals Diaphragm Strainers Spring S plastic EPDM EPDM Stainless steel Stainless steel Dimensions C Part Code PRED PRED PRED Page 14 of 18 (mm) (mm) C (mm) PRV P3

15 PRESSURE REDUCING VLVES pprovals & Standards WRS DVGW SEN 1567 Specifications Maximum working pressure 16bar djustable set pressure bar Maximum Temperature 45 C Strainer 0.25mm Flange PN16 Media Water/Compressed air Specify as Product code: PRED 624 (select appropriate) WRS approved pressure reducing valve, with in-line cartridge and full flow coaxial strainers, and all working components contained in a single cartridge. PN16 Flanged. Flow characteristics Page 15 of 18

16 Expansion Vessels Typical installation for a Potable Vessel Specifications Maximum temperature 99 C Minimum temperature -10 C Maximum working pressure 10bar Materials Shell Epoxy coated steel Membrane EPDM olted Flange Stainless Steel - Potable pprovals & Standards WRS pproved up to 1000 Litres CE marked according to Directive PED 97/23/CE TUV Certified Litre models comply with S 6920 Dimensions Pre-set Water Pressure (ar) Connection H-Height (mm) DØ-Diameter (mm) Colour ¾"mbsp White ¾"mbsp White ¾"mbsp White ¾"mbsp White ¾"mbsp White ¾"mbsp White ¾"mbsp White ¾"mbsp lue "mbsp lue "mbsp lue "mbsp lue "mbsp lue 3.5 1¼"mbsp lue 3.5 1¼"mbsp lue ¼" mbsp lue "mbsp Red DØ DØ H Line Drawing H Capacity (Ltr) "mbsp Red "mbsp Red "mbsp Red DN Red DN Red DN Red Page 16 of 18 XVES P1

Expansion Vessels Product Range XVES 050 010 XVES 050 020 XVES 050 030 XVES 050 040 XVES 050 050 XVES

vessel 12Ltr potable expansion vessel 18Ltr potable expansion vessel 24Ltr potable expansion vessel

130 XVES 050 140 XVES 050 150 50Ltr potable expansion vessel 60Ltr potable expansion vessel 80Ltr

expansion vessel 300Ltr potable expansion vessel 500Ltr potable expansion vessel XVES 050 160 XVES 050

1000Ltr potable expansion vessel 1500Ltr potable expansion vessel 2000Ltr potable expansion vessel

17 Expansion Vessels Product Range XVES XVES XVES XVES XVES XVES XVES Ltr potable expansion vessel 5Ltr potable expansion vessel 8Ltr potable expansion vessel 12Ltr potable expansion vessel 18Ltr potable expansion vessel 24Ltr potable expansion vessel 35Ltr potable expansion vessel XVES XVES XVES XVES XVES XVES XVES XVES Ltr potable expansion vessel 60Ltr potable expansion vessel 80Ltr potable expansion vessel 100Ltr potable expansion vessel 150Ltr potable expansion vessel 200Ltr potable expansion vessel 300Ltr potable expansion vessel 500Ltr potable expansion vessel XVES XVES XVES XVES XVES XVES XVES Ltr potable expansion vessel 1000Ltr potable expansion vessel 1500Ltr potable expansion vessel 2000Ltr potable expansion vessel 3000Ltr potable expansion vessel 4000Ltr potable expansion vessel 5000Ltr potable expansion vessel * * Up to 1000 Litres Page 17 of 18

18 STOKVIS ENERGY SYSTEMS 96R WLTON ROD EST MOLESEY SURREY KT8 0DL Tel: / Fax: / info@stokvisboilers.com Website: DOM DC Page 18 of 18

PRESSURE REDUCING VALVES

PRESSURE REDUCING VALVES Ensure reliable and stable pressure for smooth-running water systems Reliance Water Controls Ltd A Reliance Worldwide Company Worcester Road, Evesham, Worcestershire, WR11 4RA,