Direct on Mains (DOM) Unvented Kit Components Literature STOKVIS ENERGY SYSTEMS 96R WLTON ROD EST MOLESEY SURREY KT8 0DL Tel: 020 8783 3050 / 08707 707 747 Fax: 020 8783 3051 / 08707 707 767 E-Mail: info@stokvisboilers.com Website: www.stokvisboilers.com DOM-2013.05.01-DC Page 1 of 18
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 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 26 21 101-15 1/2 3/4 33 20 120-20 3/4 1 39 24 134 28 25 1 1 1 /4 45 30 155 30 SFE MNUL TESTING ESY INSPECTION ND CLENING PRESSURE SETTING LOCKED & SELED DESIGNED ND TESTED TO S 6759 CPCITIES CERTIFIED Y OTC 32 1 1 /4 1 1 /2 54 36 201 30 40 1 1 /2 2 64 41 241 32 50 2 2 1 /2 76 47 267 36 65 2 1 /2 3 90 60 330 36 PPROVED Y WTER RESERCH CENTRE UKWFS LISTED PDLOCK VILLE NIC Page 3 of 18
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 DN65 1.0 31 58 104 162 266 416 650 1098 2.0 48 89 158 248 406 634 990 1673 3.0 64 120 213 333 545 852 1331 2249 4.0 81 150 267 418 684 1069 1671 2824 6.0 114 212 376 588 963 1505 2352 3974 8.0 147 273 485 758 1242 1941 3032 5125 10.0 180 334 594 928 1521 2376 3713 6275 12.5 221 411 730 1141 1869 2921 4564 7713 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 DN65 1.0 50 93 166 259 425 664 1037 1752 2.0 76 142 253 395 647 1011 1580 2670 3.0 103 191 340 531 870 1359 2123 3588 4.0 129 240 427 667 1092 1706 2666 4506 6.0 182 338 600 938 1537 2402 3753 6342 8.0 234 436 774 1210 1982 3097 4839 8178 10.0 287 533 948 1481 2427 3792 5925 10014 12.5 353 655 1165 1821 2983 4661 7283 12308 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 DN65 1.0 18 34 61 95 156 244 381 644 2.0 28 52 93 145 238 372 581 982 3.0 38 70 125 195 320 500 781 1319 4.0 47 88 157 245 401 627 980 1657 6.0 67 124 221 345 565 883 1380 2331 8.0 86 160 285 445 729 1138 1779 3006 10.0 105 196 349 545 892 1394 2178 3681 12.5 130 241 428 669 1097 1714 2677 4525 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 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 3/4 34 48 230 81 ODY MTERIL : GUNMETL ESY INSPECTION ND CLENING 20 1 39 47 240 81 MXIMUM SET PRESSURE : 12.5 bar PRESSURE SETTING LOCKED 25 1 1 /4 45 56 260 81 MXIMUM TEMPERTURE : 95 deg C & SELED 32 1 1 /2 54 62 350 127 MXIMUM WORKING TEMP : 75 deg C DESIGNED ND TESTED TO S 6759 40 2 64 71 400 127 WTER REGULTIONS DVISORY 50 2 1 /2 76 82 430 127 SCHEME PPROVED PRODUCT NIC Page 5 of 18
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 25 45 65 105 165 255 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 DN50 1.0 46 81 127 208 326 509 1.5 58 103 160 263 411 642 2.0 70 124 194 318 496 775 2.5 82 145 227 372 581 908 3.0 94 167 260 427 667 1042 4.0 118 209 327 536 837 1308 5.0 142 252 394 645 1008 1575 6.0 166 295 460 754 1178 1841 7.0 190 337 527 863 1349 2108 8.0 214 380 594 973 1520 2374 10.0 262 465 727 1191 1861 2907 12.5 322 572 893 1464 2287 3574 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 0.479. 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: 0161 872 6941 Fax: 0161 872 4514 Email: salesteam@brownall.co.uk Website: www.nabic.co.uk 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 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 www.rwc.co.uk DMT503-003-04/11 P1
utomatic nti-vacuum Valves Specification Sheet The Safety Valve Specialist Specifications Maximum working pressure 16bar Maximum Temperature: DMT 503 001 99 C DMT 503 010, 004, 005 60 C Opening Pressure 0.05bar Dimensions C C pprovals WRS 1106038 Product Codes DMT 503 001 ½"MSP utomatic nti-vacuum Valve DMT 503 010 ¾"MSP utomatic nti-vacuum Valve DMT 503 004 15mm utomatic nti-vacuum Valve DMT 503 005 22mm utomatic nti-vacuum Valve DMT 503 001 DMT 503 010 Typical Installation Temperature, pressure and vacuum relief valve Product Code C DMT 503 001 ½" MSP 49 32 DMT 503 010 ¾" MSP 45 34 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: 0800 389 5931 Freefax: 0800 389 5932 Outside UK Tel: +44 (0)1386 712400 Fax: +44 (0)1386 712401 Email: sales@rwc.co.uk www.rwc.co.uk Page 8 of 18 Product Code C DMT 503 004 15mm 46 28 DMT 503 005 22mm 49 36 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. DMT503-003-04/11 P2 Reliance Water Controls Ltd 2011
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 1999. 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-005-08/11 P1 Page 9 of 18
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 1999. 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 230 001: FLOW 230 002: FLOW 230 003: FLOW 230 004: FLOW 230 005: FLOW 230 006: FLOW 230 007: FLOW 230 008: FLOW 230 009: FLOW 230 010: 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 : 1001323 Product Code Connection FLOW 230 001 15mm 24 82 FLOW 230 002 15mm 24 82 FLOW 230 003 22mm 32 87 FLOW 230 004 28mm 38 115 Product Code Connection FLOW 230 005 1/2" FSP 25 75 FLOW 230 006 3/4" FSP 31 87 FLOW 230 007 1" FSP 38 101 FLOW 230 008 1 1/4" FSP 46 121 FLOW 230 009 1 1/2" FSP 52 143 FLOW 230 010 2" FSP 65 184 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-005-08/11 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. 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-10.9.7-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 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 315 030 1" MSP dj 1.5-6.0bar 315i PRV PRED 315 040 1¼" MSP dj 1.5-6.0bar 315i PRV PRED 315 050 1½" MSP dj 1.5-6.0bar 315i PRV PRED 315 060 2" MSP dj 1.5-6.0bar 315i PRV Dimensions C Part Code PRED 315 010 PRED 315 020 PRED 315 030 PRED 315 040 PRED 315 050 PRED 315 060 PRED 315 070 PRED 315 080 PRED 315 090 C (mm) 130 138 170 191 220 255 104 124 148 (mm) 74 74 84 94 94 94 74 74 84 Page 12 of 18 C (mm) 103 103 132 194 194 187 103 103 132 PRV-001-04-11-P1
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 1.5-6.0bar 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) 5 4 3 2 1 0 0 20 40 60 80 100 Flow Rate (l/min) 120 140 160 180 200 7 70% back pressure Open outlet Red = 1 1/4 lue = 1 3/4 Green = 2 6 Pressure Drop (ar) 5 4 3 2 1 0 0 40 80 120 160 200 Flow Rate (l/min) Page 13 of 18 240 280 320 360 400
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 624 001 DN65 djustable 6247 PRV PRED 624 002 DN80 djustable 6247 PRV PRED 624 003 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 624 001 PRED 624 002 PRED 624 003 Page 14 of 18 www.rwc.co.uk (mm) 283 283 283 (mm) 290 310 350 C (mm) 185 200 220 PRV-001-04-11-P3
PRESSURE REDUCING VLVES pprovals & Standards WRS DVGW SEN 1567 Specifications Maximum working pressure 16bar djustable set pressure 1.5-6.0bar 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 www.rwc.co.uk
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 1000-5000 Litre models comply with S 6920 Dimensions Pre-set Water Pressure (ar) Connection H-Height (mm) DØ-Diameter (mm) Colour 2 3.0 ¾"mbsp 265 110 White 5 3.0 ¾"mbsp 296 160 White 8 3.0 ¾"mbsp 310 200 White 12 3.0 ¾"mbsp 295 280 White 18 3.0 ¾"mbsp 465 280 White 24 3.0 ¾"mbsp 492 280 White 35 3.0 ¾"mbsp 440 365 White 50 3.0 ¾"mbsp 656 365 lue 60 3.5 1"mbsp 783 365 lue 80 3.5 1"mbsp 790 410 lue 100 3.5 1"mbsp 774 495 lue 150 3.5 1"mbsp 927 550 lue 3.5 1¼"mbsp 1020 600 lue 3.5 1¼"mbsp 1243 650 lue 500 3.5 1¼" mbsp 1493 750 lue 750 4.0 2"mbsp 1820 800 Red DØ DØ H 200 300 Line Drawing H Capacity (Ltr) 1000 4.0 2"mbsp 2250 800 Red 1500 4.0 2"mbsp 2400 960 Red 2000 4.0 2"mbsp 2500 1100 Red 3000 4.0 DN65 2750 1200 Red 4000 4.0 DN80 3220 1450 Red 5000 4.0 DN80 3620 1450 Red Page 16 of 18 XVES-002-13-4-30-P1
Expansion Vessels Product Range XVES 050 010 XVES 050 020 XVES 050 030 XVES 050 040 XVES 050 050 XVES 050 060 XVES 050 070 2Ltr 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 050 080 XVES 050 090 XVES 050 100 XVES 050 110 XVES 050 120 XVES 050 130 XVES 050 140 XVES 050 150 50Ltr 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 050 160 XVES 050 170 XVES 050 180 XVES 050 190 XVES 050 200 XVES 050 210 XVES 050 220 750Ltr 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
STOKVIS ENERGY SYSTEMS 96R WLTON ROD EST MOLESEY SURREY KT8 0DL Tel: 020 8783 3050 / 08707 707 747 Fax: 020 8783 3051 / 08707 707 767 E-Mail: info@stokvisboilers.com Website: www.stokvisboilers.com DOM-2013.05.01-DC Page 18 of 18