Pressure relief valve DHV 712-Rset range: 0,3 - 10,0 bar
Advantage• pressure setting possible at any time, also during operation• optimum monitoring valves• high reproducibility of the set pressure• high level of operating safety and long service life• constant, low vibration control• low-maintenance• can be easily connected to the pipework by proven technologies
- solvent or fusion welding• radial removal is possible even after installation• low pressure increase until the valve is fully opened• reliable diaphragm fastening with standard stainless steel screws• considerably shortened face-to-face dimension with injection
moulded threaded neck according to DIN 8063• metal inserts in the valve housing allow the valves to be directly
fitted to mounting sets, the movability of the union nuts on thevalves made of PVC-U, PP and PVDF remains unaffected
• suitable for oscillating pumps
Application• chemical plants• industrial plants• water treatment
Intended Use• The pressure relief valve which is directly controlled by the
medium, is used in technical processing plants for keepingpreset working pressures constant on the primary side.
• The pressure relief valve 712-R, specially designed for dosingtechnology, is used for ensuring constant dosing quantities inconjunction with oscillating pumps. In the event of anycounterpressure on the secondary side, the admission pressureand thus the dosing quantity remain constant.
• not suitable for equipment with safety function according to thePressure Equipment Directive.
Valve Function• If the working or inlet pressure rises above the set value, the
pressurized valve piston is lifted against the spring force. Thevalve opens and a pressure relief on the secondary side (outletside) takes place. The valve closes as soon as the workingpressure at the valve piston is lower than the set spring preload.
• When in the case of the dynamic flow valve with set workingpressure, counter pressure is generated on the outlet side, thispressure acts simultaneously underneath the active area of thediaphragm and on the loosely guided valve piston, i.e. the forcesunder the diaphragm surface and the piston cancel each otherout. The valve lift and thus the working pressure remain virtuallyconstant.
Valve Setting• Set or adjust the desired or permissible working pressure at the
adjustment screw with the aid of pressure gauges (ASVdiaphragm pressure gauge guard, type MDM 902) in the pipesystem after removing the protection cap. The adjustment screwis secured by a counter nut and can be sealed againstunauthorized adjustment, if necessary.
Classification Of The Identification Number• refer table on page 7
Flow Media• Technically pure, neutral and aggressive fluids, provided that
the selected valve materials coming into contact with the mediaare resistant at the operating temperature according to theASV-resistance guide.
• For nitric acid or sulfuric acid please specify the precise operatingconditions of the application.
Fluid Temperature• see pressure-/temperature diagram
Operating Pressure• see pressure-/temperature diagram
Size• DN 10 - DN 50
Set Range• 0.3 - 10.0 bar
Nominal Pressure (H2O, 20°C)• PN 10
Working Pressure• set pressure plus flow dependent pressure increase (see
characteristic curves): approx. 0.3 - 10.0 bar
Deviation From The Working Pressure• up to 5 bar counterpressure: approx. ±0.3 bar• over 5 bar counterpressure: approx. ±0.5 bar
Opening Pressure• approx. 0.3 - 0.5 bar
Hysteresis• Difference between opening and closing pressure approx. 0.3
bar
1All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Valve Body• PVC-U• PP• PVDF• PTFE - carbon fibre reinforced• stainless steel 1.4571 (V4A)
Bonnet• PP, glass fibre reinforced
Piston• PVC-U• PP• PVDF• PTFE piston for the media to permeation (penetration) tilt (such
as HF, HCl, HNO3).
Sealing• FPM• PTFE• EPDM
Diaphragm• PTFE (EPDM diaphragm with PTFE coating on the surfaces coming
into contact with the medium)• PTFE membrane with ECTFE film for media (such as HF, HCl,
HNO3) for the permeation (penetration) tilt.
Screws• stainless steel (1.4301)
Actuation• medium controlled
Connection• refer comments on the identification numbers
Flow Direction• always in the direction of the arrow
Mounting Position• as required
Fastening• via threaded inserts (metal inserts) in the valve body
Colour• valve body: PVC-U, grey, RAL 7011• valve body: PP, grey, RAL 7032• valve body: PVDF, opaque, yellowish-white• bonnet: orange, RAL 2004• valve body: PTFE, black• valve body: stainless steel, unpainted
Pressure Gauge Connection• see page 14 »version with threaded holes for pressure gauge
mounting«
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld2ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure/temperature diagram
P = operating pressureT = temperatureThe pressure/temperature limits are applicable for the statednominal pressures and a computed operating life factor of 25 years.These are standard values for harmless media (DIN 2403), to whichthe valve material is resistant.For other media please refer to the ASV resistance guide.The durability of wear parts depends on the operating conditionsof the application.For temperatures below 0°C (PP < +10°C) please specify the preciseoperating conditions of the application.The rated pressure depends on the valve size and material. Forthe corresponding rated pressure value of the valve, please referto the »Order table«.
Pressure/temperature diagram
P = operating pressureT = temperatureThe pressure/temperature limits are applicable for the statednominal pressures and a computed operating life factor of 25 years.These are standard values for harmless media (DIN 2403), to whichthe valve material is resistant.For other media please refer to the ASV resistance guide.The durability of wear parts depends on the operating conditionsof the application.For temperatures below 0°C (PP < +10°C) please specify the preciseoperating conditions of the application.The rated pressure depends on the valve size and material. Forthe corresponding rated pressure value of the valve, please referto the »Order table«.
3All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Pressure loss curve (standard values for H2O, 20°C)
∆P = pressure lossQ = flowpressure loss and kv valueThe diagram shows the pressure loss ∆P in relation to the flow Q.Conversion aid:cv = kv x 0.07; fv = kv x 0.0585Units:kv [l/min]; cv [gal/min] US; fv [gal/min] GB
Pressure loss curve (standard values for H2O, 20°C)
∆P = pressure lossQ = flowpressure loss and kv valueThe diagram shows the pressure loss ∆P in relation to the flow Q.Conversion aid:cv = kv x 0.07; fv = kv x 0.0585Units:kv [l/min]; cv [gal/min] US; fv [gal/min] GB
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld4ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Operating behaviour
pE = set PressurepA = working pressurepÖ = opening pressurepS = closing pressurepÖ - pS = hystersispE - pA = flow dependent pressure reductionQ = flow
Sectional drawing DHV 712-R
A = primary sideB = secondary side1 = protection cap2 = adjustment screw3 = counter nut4 = piston5= diaphragm6 = flat sealing ring7 = valve seat
DHV 712-R with pressure gauge
The pressure relief valve can be factory fitted with a pressure gaugefor neutral media. The resistance of the pressure gauge materialhas to be taken into consideration for other media.
5All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Applications for Pressure Relief ValveExample 1: Constant system pressure
X = valve opensY = valve closedpA = working pressurepP = pump pressurepÖ = opening pressure
Applications for Pressure Relief ValveExample 2: Consumer 1 and/or 2 opens, pressure relief valve closes
X = valve opensY = valve closedpA = working pressurepP = pump pressurepÖ = opening pressure
Applications for Pressure Relief ValveExample 3: Pressure relief valve as backflow preventer
X = valve opensY = valve closedpmax = max. pressurepP = pump pressurepÖ = opening pressure
Applications for Pressure Relief ValveExample 4: Pressure relief valve as overflow valve:The containerpressure or system must not exceed the max. pressure value
X = valve opensY = valve closedpA = working pressurepP = pump pressurepÖ = opening pressure
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld6ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Malfunctions, possible causes, rectification
Maintenance noteScrew tightening torque (Nm)
The speci�ed values apply to lubricated screws.Check the tightening torque of the body screws at certain intervalsin case of setting of the diaphragms and/or temperaturefluctuations.
Operating noteSafe operation of the valve can only be ensured if it is properlyinstalled, operated, serviced or repaired by qualified personnelaccording to its intended use while observing the accidentprevention regulations, safety regulations, relevant standards,directives/technical regulations or codes of practice such as e.g.DIN, DIN EN, DIN ISO and DVS*. *DVS = German Welding SocietyThe intended use includes adhering to specified limit values forpressure and temperature, as well as checking the resistance. Thisrequires all components coming into contact with the medium tobe "resistant" in accordance with the ASV resistance guide.Pressure gauge versionIf the valve body is equipped with a pressure gauge, do not tightenthe pressure gauge with more than max. 3 Nm.Please take into account that the material PTFE is classified asresistant against many media, however, PTFE is not diffusion tightwhen used as a film, e.g. for the ASV membranes. Please contactus for limit cases (nitric acid or sulfuric acid).
7All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Ident codeSettingrange and option
A = standard ident no. (6 digits)B = ident code for settingrangeC = ident code for »washed free of silicone«a = ident code »0« not washed free of siliconeb = Ident code »1« washed free of silicone
example c = ident no. / setting = 0,5 bar / not washed free of siliconeexample d = ident no. / setting = 1,1 bar / not washed free of siliconeexample e = ident no. / setting = 10 bar / washed free of silicone
1
body PVC-U
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
146356146355146354146353146352146351146350EPDMPVC-Usocket end DIN ISO 146372
5.20 kg1463715.10 kg
1463705.00 kg
1463691.90 kg
1463681.86 kg
1463670.85 kg
1463660.80 kg
FPMweight
146500146499146498146497146496146495146494EPDMPVC-Uspigot end FIX DINISO
1465165.20 kg
1465155.10 kg
1465145.00 kg
1465131.90 kg
1465121.86 kg
1465110.85 kg
1465100.80 kg
FPMweight
146388146387146386146385146384146383146382EPDMPVC-Usocket end ANSI 146404
5.20 kg1464035.10 kg
1464025.00 kg
1464011.90 kg
1464001.86 kg
1463990.85 kg
1463980.80 kg
FPMweight
146420146419146418146417146416146415146414EPDMPVC-Usocket end BS 146428
5.20 kg1464275.10 kg
1464265.00 kg
1464251.90 kg
1464241.86 kg
1464230.85 kg
1464220.80 kg
FPMweight
146436146435146434146433146432146431146430EPDMPVC-Usocket end JIS 146444
5.20 kg1464435.10 kg
1464425.00 kg
1464411.90 kg
1464401.86 kg
1464390.85 kg
1464380.80 kg
FPMweight
146452146451146450146449146448146447146446EPDMPVC-Uthreaded sockets Rp 146460
5.20 kg1464595.10 kg
1464585.00 kg
1464571.90 kg
1464561.86 kg
1464550.85 kg
1464540.80 kg
FPMweight
146484146483146482146481146480146479146478EPDMA4 1.4571threaded sockets Rp 146492
6.11 kg1464915.61 kg
1464905.41 kg
1464892.09 kg
1464882.00 kg
1464870.94 kg
1464860.85 kg
FPMweight
146468146467146466146465146464146463EPDMPEspigot end DIN ISO 146476
5.20 kg1464755.10 kg
1464745.00 kg
1464731.90 kg
1464721.86 kg
1464710.85 kg
FPMweight
146531146530146529146528146527146526EPDMGFRflange DIN EN 1092 146545
6.21 kg1465445.85 kg
1465435.66 kg
1465422.28 kg
1465412.16 kg
1465401.06 kg
FPMweight
146559146558146557146556146555146554EPDMPP / steelflange ANSI 146573
7.00 kg1465726.32 kg
1465716.10 kg
1465702.81 kg
1465692.46 kg
1465681.33 kg
FPMweight
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld8ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Standard
body PP
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
146588146587146586146585146584146583146582EPDMPPsocket end DIN ISO 146596
4.28 kg1465954.18 kg
1465944.10 kg
1465931.61 kg
1465921.57 kg
1465910.72 kg
1465900.67 kg
FPMweight
146617146616146615146614146613146612EPDMPPspigot end DIN ISO 146624
4.28 kg1466234.18 kg
1466224.10 kg
1466211.61 kg
1466201.57 kg
1466190.72 kg
FPMweight
146632146631146630146629146628146627146626EPDMPPspigot end FIX DINISO
1466404.28 kg
1466394.18 kg
1466384.10 kg
1466371.61 kg
1466361.57 kg
1466350.72 kg
1466340.67 kg
FPMweight
146647146646146645146644146643146642EPDMGFRflange DIN EN 1092 146654
5.28 kg1466534.94 kg
1466524.69 kg
1466512.02 kg
1466501.89 kg
1466490.94 kg
FPMweight
146661146660146659146658146657146656EPDMPP / steelflange ANSI 146668
6.07 kg1466675.42 kg
1466665.22 kg
1466652.55 kg
1466642.20 kg
1466631.20 kg
FPMweight
146603146602146601146600146599146598EPDMPPthreaded sockets Rp 146610
4.28 kg1466094.18 kg
1466084.10 kg
1466071.61 kg
1466061.57 kg
1466050.72 kg
FPMweight
9All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Standard
body PVDF
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
1466765.65 kg
1466755.55 kg
1466745.45 kg
1466732.15 kg
1466722.11 kg
1466711.07 kg
1466701.02 kg
FPMweight
PVDFsocket end DIN ISO
1466915.65 kg
1466905.55 kg
1466895.45 kg
1466882.15 kg
1466872.11 kg
1466861.07 kg
FPMweight
PVDFspigot end DIN ISO
1467065.65 kg
1467055.55 kg
1467045.45 kg
1467032.15 kg
1467022.11 kg
1467011.07 kg
1467001.07 kg
FPMweight
PVDFspigot end FIX DINISO
1467357.61 kg
1467346.84 kg
1467336.67 kg
1467323.15 kg
1467312.78 kg
1467301.58 kg
FPMweight
PP / steelflange ANSI
1467217.78 kg
1467207.35 kg
1467196.99 kg
1467183.21 kg
1467172.85 kg
1467161.61 kg
FPMweight
PP / steelflange DIN EN 1092
body PTFE
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
1207175.80 kg
1207165.80 kg
1207155.80 kg
1207142.20 kg
1207132.20 kg
1207121.00 kg
1207111.00 kg
PTFEPTFEthreaded neck G
body A4 1.4571
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
12071014.28 kg
12070912.80 kg
12070812.80 kg
1207074.60 kg
1207044.60 kg
1207062.20 kg
1207052.00 kg
PTFEA4 1.4571threaded neck G
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld10ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Standard
dimensions
11All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Standard
63504032252016d (mm)50403225201510DN (mm)
21 1/21 1/413/41/23/8DN (Zoll)
Maßedimensions
63,050,040,032,025,020,016,0d8,08,08,06,06,06,06,0M
2 3/42 1/421 1/21 1/413/4G37,037,037,025,025,020,020,0h1.457156,056,056,038,038,025,025,0hPP37,037,037,025,025,020,020,0hPTFE56,056,056,038,038,025,025,0hPVC-U56,056,056,038,038,025,025,0hPVDF
250,0230,0230,0180,0180,0150,0-L343,0338,0331,0270,0264,0228,0-L1PP395,0395,0395,0340,0340,0310,0-L1PE-Stutzen333,0327,0321,0267,0261,0225,0-L1PVDF205,0205,0205,0150,0150,0120,0120,0L21.4571204,0204,0204,0150,0150,0120,0120,0L2PP205,0205,0205,0150,0150,0120,0120,0L2PTFE204,0204,0204,0150,0150,0120,0120,0L2PVC-U204,0204,0204,0150,0150,0120,0120,0L2PVDF211,0211,0211,0156,0156,0126,0128,0L3PP211,0211,0211,0156,0156,0126,0126,0L3PVC-U
209,0209,0209,0156,0156,0125,0127,0L3PVDF211,0211,0211,0156,0156,0126,0126,0L3 ANSI213,0211,0211,0159,0160,0128,0132,0211,0211,0211,0156,0156,0126,0126,0L3 BS219,0221,0217,0162,0158,0128,0128,0
21 1/21 1/413/41/23/8Rp38,031,026,022,019,016,014,0t
261,0261,0261,0201,0201,0173,0173,0H1.4571262,0262,0262,0202,0202,0174,0174,0HPP261,0261,0261,0201,0201,0173,0173,0HPTFE262,0262,0262,0202,0202,0174,0174,0HPVC-U262,0262,0262,0202,0202,0174,0174,0HPVDF244,0224,0224,0174,0174,0144,0144,0L4
18,017,017,015,014,012,0-bGFK Flansch DINEN 1092
18,018,016,016,013,013,0-bPP/Stahl FlanschANSI
18,017,017,015,014,013,0-bEN 1092
147,0147,0147,0107,0107,081,081,0N65656546462424V1.457165656546464040VPP65656546464040VPTFE65656546464040VPVC-U65656546464040VPVDF
L3 JIS
L3 Rp
PP/Stahl Flansch
PVC-UPVC-UPVC-UPVC-U/PP
Version For Pressure Gauge Installation• version with 2 x threaded hole G 1/4" for pressure gauge
connection
body PVC-U
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
1463645.20 kg
1463635.10 kg
1463625.00 kg
1463611.90 kg
1463601.86 kg
1463590.85 kg
1463580.80 kg
EPDMweight
PVC-Usocket end DIN ISO
1465085.20 kg
1465075.10 kg
1465065.00 kg
1465051.90 kg
1465041.86 kg
1465030.85 kg
1465020.80 kg
EPDMweight
PVC-Uspigot end FIX DINISO
1463965.20 kg
1463955.10 kg
1463945.00 kg
1463931.90 kg
1463921.86 kg
1463910.85 kg
1463900.80 kg
EPDMweight
PVC-Usocket end ANSI
1465386.21 kg
1465375.85 kg
1465365.66 kg
1465352.28 kg
1465342.16 kg
1465331.06 kg
EPDMweight
GFRflange DIN EN 1092
1465667.00 kg
1465656.32 kg
1465646.10 kg
1465632.81 kg
1465622.46 kg
1465611.33 kg
EPDMweight
PP / steelflange ANSI
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld12ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Pressure gauge version
dimensions
63504032252016d(mm)50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)
dimensions(mm)
63504032252016d8886666M
56565638382525h250230230180180150-L244224224174174144144L1204204204150150120120L2211211211156156126126L338312622191614t
262262262202202174174H244224224174174144144L4
181717151412-bGFR181816161313-bPP / steel
1471471471071078181N65656546464040V
13All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Pressure gauge version
Special Version• for media (such as HF, HCl, HNO3) for the permeation
(penetration) tilt.• piston PTFE• PTFE-Membrane with ECTFE film
body PVC-U
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
1463805.20 kg
1463795.10 kg
1463785.00 kg
1463771.90 kg
1463761.86 kg
1463750.85 kg
1463740.80 kg
FPMweight
PVC-Usocket end DIN ISO
1465245.20 kg
1465235.10 kg
1465225.00 kg
1465211.90 kg
1465201.86 kg
1465190.85 kg
1465180.80 kg
FPMweight
PVC-Uspigot end FIX DINISO
1464125.20 kg
1464115.10 kg
1464105.00 kg
1464091.90 kg
1464081.86 kg
1464070.85 kg
1464060.80 kg
FPMweight
PVC-Usocket end ANSI
1465526.21 kg
1465515.85 kg
1465505.66 kg
1465492.28 kg
1465482.16 kg
1465471.06 kg
FPMweight
GFRflange DIN EN 1092
1465807.00 kg
1465796.32 kg
1465786.10 kg
1465772.81 kg
1465762.46 kg
1465751.33 kg
FPMweight
PP / steelflange DIN EN 1092
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld14ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Special Version
body PVDF
63504032252016d(mm)sizepressure range 50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)10101010101010PN(bar)
ident No.sealingConnection
1466845.65 kg
1466835.55 kg
1466825.45 kg
1466812.15 kg
1466802.11 kg
1466791.07 kg
1466781.02 kg
FPMweight
PVDFsocket end DIN ISO
1466985.65 kg
1466975.55 kg
1466965.45 kg
1466952.15 kg
1466942.11 kg
1466931.07 kg
FPMweight
PVDFspigot end DIN ISO
1467145.65 kg
1467135.55 kg
1467125.45 kg
1467112.15 kg
1467102.11 kg
1467091.07 kg
1467081.02 kg
FPMweight
PVDFspigot end FIX DINISO
1467427.61 kg
1467416.84 kg
1467406.67 kg
1467393.15 kg
1467382.78 kg
1467371.58 kg
FPMweight
PP / steelflange ANSI
1467287.78 kg
1467277.35 kg
1467266.99 kg
1467253.21 kg
1467242.85 kg
1467231.61 kg
FPMweight
PP / steelflange DIN EN 1092
15All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Special Version
dimensions
63504032252016d(mm)50403225201510DN(mm)
21 1/21 1/413/41/23/8DN(inch)
dimensions(mm)
63504032252016d8886666M
56565638382525h250230230180180150-L244224224174174144144L1PVC-U333327321267261225-L1PVDF204204204150150120120L2PVC-U203203203149149119119L2PVDF211211211156156126126L3PVC-U
209209209156156125127L3PVDF38312622191614t
262262262202202174174H244224224174174144144L4
181717151412-bPVC-UGFR
181816161313-bPVC-U/PVDFPP / steel
1917.517.515.514.513-bPVDF1471471471071078181N65656546464040V
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld16ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R, Special Version
Item Overview
DHV 712-R, PVC-U, PP, PVDFDN 10 - DN 15
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston, complete110protection cap111hexagon bolt412.1hexagon bolt113counter nut114flat sealing ring115hexagon nut417washer417.5washer418O-ring221union end222union nut223protection cap424protection cap425Plug227
DHV 712-R PVC-U, PP, PVDFDN 20 - DN 50
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston, complete110protection cap111hexagon bolt212.1hexagon bolt113counter nut114flat sealing ring115hexagon bolt416hexagon nut617washer617.5washer618O-ring221union end222union nut223protection cap424protection cap425
17All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
DHV 712-R PTFEDN 10 - DN 15
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston110.1piston point110.2flat sealing ring110.3protection cap111hexagon bolt412hexagon bolt113counter nut114flat sealing ring115hexagon nut417washer417.2washer418.2O-ring221union end222union nut223protection cap424protection cap425Plug227
DHV 712-R PTFEDN 20 - DN 50
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston110.1piston point110.2protection cap111hexagon bolt412hexagon bolt113counter nut114flat sealing ring115hexagon nut417washer417.2washer618.2O-ring221union end222union nut223protection cap424protection cap425Plug227
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld18ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
stainless steel 1.4571DN 10 - DN 15
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston110.1piston point110.2flat sealing ring110.3protection cap111hexagon bolt412hexagon bolt113counter nut114washer418O-ring221protection cap424
stainless steel 1.4571DN 20 - DN 50
designationquantitypositionvalve body11bonnet12separating disc13pressure disc14diaphragm15pressure plate16spring plate17pressure spring18steel ball19piston110.1piston point110.2flat sealing ring110.3protection cap111hexagon bolt612hexagon bolt113counter nut114washer618O-ring221protection cap624
19All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
Characteristic curvesConfiguration example
The valve is set tight at 5 bar.A flow of approx. 2000 l/h is reached at a pressure increase of 1 bar.According to the curve, this results in the following values:set pressure pE: 5 bar; working pressure pA: 6 bar; opening pressure pÖ: 5.5 bar; closing pressure pS: 5.2 barDN 10
pA = working pressureQ = flow
DN 15
pA = working pressureQ = flow
DN 20
pA = working pressureQ = flow
DN 25
pA = working pressureQ = flow
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld20ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
DN 32
pA = working pressureQ = flow
DN 40
pA = working pressureQ = flow
DN 50
pA = working pressureQ = flow
21All rights for technical modifications withheld> data sheet no.: 330156 - 2013/08/26ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R
> data sheet no.: 330156 - 2013/08/26All rights for technical modifications withheld22ASV Stübbe GmbH & Co. KG · Hollwieser Str. 5 · D-32602 Vlotho · Tel. +49(0)5733. 799-0 · Fax +49(0)5733. 799-5000 · [email protected] · www.asv-stuebbe.de
Pressure relief valve DHV 712-R