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/FontFamily (Arial Narrow) /BaseFont /MMBIGE+Frutiger-Light /Ascent 935 endobj 120C, Experts within Heating Greg Tracy has been working in the HVAC industry for the last 15 years. hb``a``z6g 001Gs"vfGGG7|,.00[. \*!X,4"^A_bq5MdQ>Cs/ >> /OPM 1 /Type /Font /FontDescriptor 61 0 R 51 0 obj 53 0 obj /TT2 51 0 R /I 319 62 0 obj /TT6 54 0 R endobj /SM 0.02 /Encoding /WinAnsiEncoding Hi Mengineer,
<. bvseo-msg: BV SEO Content for this product did not include verbose reviews.. << 
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>> If an installation schematic isrequiredplease contact your Danfoss representative, Set up the pump and system to deliver the conditions where bypassing should occur. /OPM 1
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endobj << 0000012724 00000 n 0000015585 00000 n <>stream 0000003244 00000 n 0000033414 00000 n /FontBBox [ -182 -307 1000 1086 ] /FontDescriptor 60 0 R /Type /ExtGState endobj Greg TracySend Greg an email+44 1234364621, Bypass valve are to be selected on the required bypass flow rate and opening pressure loss, The valves shall be capable of the required opening pressure within the published spring range, The valves shall be installed with a partner valve to enable bypass flow measurement and flow limiting if necessary, The partner valves shall be fixed orifice in DN15-50 and variable orifice in DN50 (high flow) to DN400, The valve shall be installed between flow and return in accordance with the flow direction shown on the valve casting, The partner valve shall be on the return, just after the bypass valve, and within the impulse tube loop. h[io9+ia! /UCR2 /Default 0 0 0 0 0 0 0 456 456 410 456 456 228 456 456 182 0 410 182 683 456 456 456 456 273 0000001937 00000 n endobj << &=cv3YAcm%y"YnerBHh^F3a6EyBZ'sPe4X9T#/luA7"{rCjIi"@4 wkQ+\eSofI3/ln6o~/xhpm$E+o+:BIw'dJx NirSaex;8Grq;K.y b1luI9'\ /Type /FontDescriptor /CapHeight 718 0000002944 00000 n >> /StemV 0 No long term test yet but have used before and had no call backs, loc_en_GB, sid_4747V, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)], loc_en_GB, sid_4747V, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]. /GS4 116 0 R endobj A simple means of ensuring adequate flow through boilers which require a bypass. %PDF-1.4 % /FirstChar 32 /FontDescriptor 87 0 R This point just between open and closed is the setpoint. /Subtype /Type1 <<
/MC1 99 0 R /FirstChar 32 /OPM 1 /Encoding /WinAnsiEncoding >> /SA false >> endstream endobj 144 0 obj<>/Size 119/Type/XRef>>stream /LastChar 121 It's been fitted for 2 weeks and no problems, but can't comment on the long term reliability. endobj
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startxref /Rotate 0 0000004082 00000 n /Widths [ 278 ] X'Neg7UX&bdH@.85 H /Widths [ 228 273 0 0 0 0 0 0 273 273 0 0 228 0 228 0 456 456 456 456 456 456 456 0 0 0 273 /Widths [ 228 0 0 0 0 0 0 0 273 273 0 0 228 0 228 0 0 456 456 456 456 456 0 0 0 0 0 0 0 0 Our warehouse staff have advised that the width (length from end to end) of this valve is 73mm, /Subtype /Type1 0 0 479 0 0 0 592 592 592 592 0 501 0 0 228 0 0 501 0 592 638 547 0 592 547 501 592 Having worked at Danfoss for 10 years, Greg managed the Danfoss Underfloor Heating division in the UK. /LastChar 150 endobj /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 0 333 278 0 556 556 556 0 556 556 0 556 0 0 0 0 0 0 0 /Encoding /WinAnsiEncoding endobj <>/Filter/FlateDecode/ID[<5B19FC880E19AA4D9F8EF91EDEB3396D>]/Index[95 49]/Info 94 0 R/Length 125/Prev 1282143/Root 96 0 R/Size 144/Type/XRef/W[1 2 1]>>stream 0 0 0 456 ] 722 ] 57 0 obj /FontStretch /Condensed 52 0 obj /Encoding /WinAnsiEncoding >>
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hbbd``b`N@m@`yL- V" @] !$W$`0 &!21URm6HI=HHXz@BdJ!"Fw Ig Qy /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 0 0 278 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ), Works as required. endobj /FontName /MMBHLF+ArialNarrow /CropBox [ 0 0 419.55 595.3 ] This valve has stopped all the flow through the bypass in normal use (I set it to 0.25 bar having done the sums for my system. Record the pressure setting as the actual opening pressure loss, Open the system to design flow rate and operate as normal, The valve will remain close in high load conditions and open in low flow conditions. /Type /Font This is the pump minimum flow or defined low flow rate, Measure the flow rate on the partner valve. >> /FontWeight 700 47 0 obj >> /L 279 /GS2 63 0 R Apart from the direction of the water flow through the valve itself does it matter which way the valve is mounted on the pipe work, vertical or horizontal. >> =lg$%Lg%_\YaBe*M2$$OIk'n3v~6e.%yo 0 0 0 667 0 722 667 0 778 722 0 0 0 0 0 722 0 0 0 722 0 0 722 0 0 0 0 0 0 0 0 0 0 /Subtype /TrueType Ideal for sealed systems to protect pumps when zone valves close. 46 0 obj %%EOF >> << /FontFile2 76 0 R 0000000016 00000 n /TT3 52 0 R [ /Separation /Honeywell#20Grau /DeviceCMYK 85 0 R ] b/Y L9>r m"2( *21 endstream endobj 107 0 obj <> endobj 108 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC]/Properties<>/Shading<>/XObject<>>>/Rotate 0/TrimBox[30 30 625.276 871.89]/Type/Page>> endobj 109 0 obj <>stream 96 0 obj 0000003291 00000 n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 556 0 611 0 0 0 0 0 0 View all: EssentialsFlues & Boiler Accessories. is dimensioned for pressure stage PN 10,max. 3 ,EUBBwe~-. 501 0 319 456 273 501 456 638 0 456 ] endstream
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/LastChar 32 Thanks for using Screwfix Q&A. JT, This valve looks and feels well made and is simple to adjust.
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/SA true /FontFamily (Arial Narrow) /BaseFont /MMBIGE+Frutiger-Light /Ascent 935 endobj 120C, Experts within Heating Greg Tracy has been working in the HVAC industry for the last 15 years. hb``a``z6g 001Gs"vfGGG7|,.00[. \*!X,4"^A_bq5MdQ>Cs/ >> /OPM 1 /Type /Font /FontDescriptor 61 0 R 51 0 obj 53 0 obj /TT2 51 0 R /I 319 62 0 obj /TT6 54 0 R endobj /SM 0.02 /Encoding /WinAnsiEncoding Hi Mengineer,
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/Encoding /WinAnsiEncoding /Type /Font endobj >> If an installation schematic isrequiredplease contact your Danfoss representative, Set up the pump and system to deliver the conditions where bypassing should occur. /OPM 1
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endobj << 0000012724 00000 n 0000015585 00000 n <>stream 0000003244 00000 n 0000033414 00000 n /FontBBox [ -182 -307 1000 1086 ] /FontDescriptor 60 0 R /Type /ExtGState endobj Greg TracySend Greg an email+44 1234364621, Bypass valve are to be selected on the required bypass flow rate and opening pressure loss, The valves shall be capable of the required opening pressure within the published spring range, The valves shall be installed with a partner valve to enable bypass flow measurement and flow limiting if necessary, The partner valves shall be fixed orifice in DN15-50 and variable orifice in DN50 (high flow) to DN400, The valve shall be installed between flow and return in accordance with the flow direction shown on the valve casting, The partner valve shall be on the return, just after the bypass valve, and within the impulse tube loop. h[io9+ia! /UCR2 /Default 0 0 0 0 0 0 0 456 456 410 456 456 228 456 456 182 0 410 182 683 456 456 456 456 273 0000001937 00000 n endobj << &=cv3YAcm%y"YnerBHh^F3a6EyBZ'sPe4X9T#/luA7"{rCjIi"@4 wkQ+\eSofI3/ln6o~/xhpm$E+o+:BIw'dJx NirSaex;8Grq;K.y b1luI9'\ /Type /FontDescriptor /CapHeight 718 0000002944 00000 n >> /StemV 0 No long term test yet but have used before and had no call backs, loc_en_GB, sid_4747V, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)], loc_en_GB, sid_4747V, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]. /GS4 116 0 R endobj A simple means of ensuring adequate flow through boilers which require a bypass. %PDF-1.4 % /FirstChar 32 /FontDescriptor 87 0 R This point just between open and closed is the setpoint. /Subtype /Type1 <<
/MC1 99 0 R /FirstChar 32 /OPM 1 /Encoding /WinAnsiEncoding >> /SA false >> endstream endobj 144 0 obj<>/Size 119/Type/XRef>>stream /LastChar 121 It's been fitted for 2 weeks and no problems, but can't comment on the long term reliability. endobj
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hbbd``b`N@m@`yL- V" @] !$W$`0 &!21URm6HI=HHXz@BdJ!"Fw Ig Qy /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 0 0 278 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ), Works as required. endobj /FontName /MMBHLF+ArialNarrow /CropBox [ 0 0 419.55 595.3 ] This valve has stopped all the flow through the bypass in normal use (I set it to 0.25 bar having done the sums for my system. Record the pressure setting as the actual opening pressure loss, Open the system to design flow rate and operate as normal, The valve will remain close in high load conditions and open in low flow conditions. /Type /Font This is the pump minimum flow or defined low flow rate, Measure the flow rate on the partner valve. >> /FontWeight 700 47 0 obj >> /L 279 /GS2 63 0 R Apart from the direction of the water flow through the valve itself does it matter which way the valve is mounted on the pipe work, vertical or horizontal. >> =lg$%Lg%_\YaBe*M2$$OIk'n3v~6e.%yo 0 0 0 667 0 722 667 0 778 722 0 0 0 0 0 722 0 0 0 722 0 0 722 0 0 0 0 0 0 0 0 0 0 /Subtype /TrueType Ideal for sealed systems to protect pumps when zone valves close. 46 0 obj %%EOF >> << /FontFile2 76 0 R 0000000016 00000 n /TT3 52 0 R [ /Separation /Honeywell#20Grau /DeviceCMYK 85 0 R ] b/Y L9>r m"2( *21 endstream endobj 107 0 obj <> endobj 108 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC]/Properties<>/Shading<>/XObject<>>>/Rotate 0/TrimBox[30 30 625.276 871.89]/Type/Page>> endobj 109 0 obj <>stream 96 0 obj 0000003291 00000 n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 556 0 611 0 0 0 0 0 0 View all: EssentialsFlues & Boiler Accessories. is dimensioned for pressure stage PN 10,max. 3 ,EUBBwe~-. 501 0 319 456 273 501 456 638 0 456 ] endstream
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106 0 obj <> endobj 153 0 obj <>/Filter/FlateDecode/ID[]/Index[106 98]/Info 105 0 R/Length 187/Prev 924091/Root 107 0 R/Size 204/Type/XRef/W[1 3 1]>>stream /ItalicAngle 0 0 0 0 547 547 592 592 0 501 0 592 228 0 0 0 0 0 0 547 0 592 547 501 592 547 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 500 0 0 0 500 0 556 0 222 0 /MC5 107 0 R <> hb```" qS]RY[bE$>:nzKcSz[j=d>_ccOq40pt00v)0(H p H %?34:V>RXBTANB#DXNdVj2mzN S\`1` `JN a%ZX3bw2 :KO /MC3 103 0 R /BaseFont /MMBIFD+Frutiger-Roman 0000026338 00000 n /Type /FontDescriptor /FontDescriptor 91 0 R /SM 0.02 /Ascent 935 %PDF-1.6 % IoHUxF0r01K. a low-capacity gas boiler or tocontrol the differential pressure in a central heating system. 0000001283 00000 n /Subtype /Type1 /Contents [ 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R 72 0 R 73 0 R 118 0 R ] /FontDescriptor 89 0 R %PDF-1.7 % /LastChar 118 << /FirstChar 32 0000018504 00000 n For the last 5 years he has been working and managing the Danfoss HVAC division with consultants and contractors on some of Londons most prestigious Commercial buildings. /B 295 XNc]O2$P[ CSIJj&a\NRN4!4Hvj+'6Zu$~y4da= b z}6&=BpqO&XSGz~|E 0000030173 00000 n /Cs8 58 0 R >> stream /MC6 109 0 R P1u`7C =P8 3}pbU^p\Z-Ukc]?n===W#d`MSO&DB1P@Oa ydMRR@. /Names 48 0 R <>>> xb``b````a` @1V 0qn #S!s6> vZP 7#'#bI /CapHeight 0 /Widths [ 556 0 0 556 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 722 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 /FirstChar 32 /ProcSet [ /PDF /Text ] /Metadata 44 0 R Record the flow rate in the commissioned condition, Turn the spring setting mechanism on the valve until the calculated opening pressure loss is set, If the valve is open, turn the mechanism until it is just closed. /BaseFont /MMBGOG+Arial-BoldMT q{ZPJI)t{E/Ov=xyMh}}|{X.>WJzy|-"E7tIytgr2/*@mdcC>xbt6i;Wp:\l4P7?dE;8b-.7U;yQL>J=HY,FGW6N;X!P\_hb*? D=,50&`@j*_yT$k dh^qcG$7ZagCnol\U&;1_&?s#poRqeH=R}xl[8W}8JRB~2!/i^lD ZI"tU3`C+2K|wxc@s%?_YzW,Ka"IS9yC}C!(QP 5 TTl0L@ qzTA H$aFVy^jh 0o `.r%s,mbHQQuQI,y=ll27\3rN/P#=e07534Bx(r'bpG\Ov-\'Y pbq2PG_(uVOCHjb*6 `!y= t34 /Type /Font Hello Maaartin, Hi endobj /Flags 32 AVDO is a self-acting constant flow control primarily used either to maintain minimum flow rates through e.g. 0000022689 00000 n 117 0 obj /OP false With a straight valve, it does not matter if installed vertically or horizontally. /EmbeddedFiles 41 0 R
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/LastChar 32 Thanks for using Screwfix Q&A. JT, This valve looks and feels well made and is simple to adjust.
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