Combined Pressure / Vacuum Relief Valve KITO VD/o

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1 KITO VD/o DN D H kg* vacuum setting (mbar) pressure DIN ANSI DIN ANSI min max min max** 50 PN PN PN PN PN PN PN Dimensions in mm * Indicated weights are understood without weight load and refer to the standard design standard valve setting mbar (pressure) -different settings against additional price- (** higher settings require higher housings) performance curves: E 017 N Standard design housing : steel, mat no valve parts / spindle : mat no gasket : NBR, Viton, PTFE valve pallet (vacuum) : spring loaded valve pallet (pressure) : weight loaded weather hood : mat no 14301, mat no 14571, protective screen : PA6 (> DN 100 mat no or 14571) flange connection : DIN EN form B1, ANSI 150 lbs RF end-of-line armature, as breather and venting device, mainly used for tanks in which inflammable liquids are stored Used to prevent inadmissible pressure or vacuum as well as gas losses or inadmissible emissions respectively Valve is not explosion-proof on endurance-burning proof E 17 N 0913

2 KITO VD/o E 17 N The flow capacity V refers to a density of air with ρ = 129 kg/m³ at a temperature of 273 K and a pressure of 1013 mbar The indicated flow rates will be reached by an accumulation of 40% above valve s setting The flow capacity for gases with different densities can be calculated sufficiently accurate by the following approximation equation: V 40% ρ b V b = V40% ρ = V b or b Indicated flow rates will be reached by an accumulation of 40% above valve s setting E

3 KITO VD/o-1 ød H DN DN D H kg vacuum Setting* (mbar) pressure DIN ANSI DIN ANSI min max min max 50 PN PN PN PN PN PN PN Dimensions in mm * minor settings see type sheet E 17 N, higher settings on request performance curves: E 0171 N Standard design housing : steel, mat no valve parts / spindle : stainless steel mat no valve sealing (vacuum) : NBR, Viton, PTFE valve sealing (pressure): metal sealing valve pallet : spring loaded parts spring loading : stainless steel mat no compression springs : stainless steel weather hood : mat no 14301, mat no 14571, protective screen : PA6 (> DN 100 mat no or 14571) flange connection : DIN EN form B1, ANSI 150 lbs RF end-of-line armature, as breather and venting device, mainly used for tanks in which inflammable liquids are stored Used to prevent inadmissible pressure or vacuum as well as gas losses or inadmissible emissions respectively Valve is not explosion-proof on endurance-burning proof E 171 N 0813

4 KITO VD/o DN 25 For valves with bigger nominal sizes see type sheet E 17 Weight 65 kg (indicated weight is understood without weight load and refer to the standard design) standard valve setting 7-30 mbar pressure (maximal 70 mbar) and 3-50 mbar vacuum -different settings against additional price- Design: housing from steel is represented on the left, housing from stainless steel is represented on the right side of the sectional drawing performance curves: E 0172 N Standard Design housing : steel, mat no valve parts / spindle : mat no valve sealing : NBR, Viton, PTFE valve pallet (vacuum) : spring loaded valve pallet (pressure) : weight loaded weather hood : mat no 14301, mat no flange connection : 4 blind holes (M12) DIN EN PN 40 as end-of-line armature, as venting and breather device mainly for tanks in which incombustible liquids are stored Valve is used to prevent inadmissible pressure or vacuum as well as gas losses or inadmissible emissions respectively Valve is not explosion-proof or endurance-burning proof _ E 172 N 0313

5 KITO VD/o DN 25 E 172 N Flow capacity V based on air of a density ρ = 129 kg/m³ at T = 273 K and atmospheric pressure p = 1013 mbar For other gases the flow can be approximately calculated by V ρb 1 29 = Vb 129 or Vb = V ρ Air flow capacity at 40% above valve setting (see DIN 4119) Curves indicated by require special weight loads b 1 0,8 0,6 0,5 0,4 0,3 0,2 0,1 0,08 0,06 0,05 0,04 0,03 0,02 2 DN vacuum setting p (mbar) ,8 0,6 0,5 0,4 0,3 0, pressure setting p (mbar) DN gas flow V (Nm 3 /min) E 0172 N 03-13

6 KITO VD/oP DN D H kg* vacuum pressure 50 PN mbar mbar 80 PN mbar mbar 100 PN mbar mbar 125 PN mbar mbar 150 PN mbar mbar 200 PN mbar mbar 250 PN mbar mbar 300 PN PN 10 Dimensions in mm * Indicated weights are understood without weight load and refer to the standard design Standard valve setting to 30 mbar (pressure) -different settings against additional price- performance curves: E 0174 N Standard design housing : steel, stainless steel mat no (valve face mat no 14571) inner faces of the housing: coated with PTFE valve parts / spindle : stainless steel mat no gasket weather hood : NBR, Viton, PTFE : stainless steel mat no or flange connection : DIN EN (threaded holes for stud bolts at DN 150 u 250) As end-of-line armature on storage tanks and silos in which powder products and granulates are stored Used as venting and breather device to prevent inadmissible pressure or vacuum All moving parts are outside the storage room _ E 174 N 0313

7 KITO VD/oP E 174 N Flow capacity V based on air of a density ρ = 129 kg/m³ at T = 273 K and atmospheric pressure p = 1013 mbar For other gases the flow can be approximately calculated by V ρb 1 29 = Vb 129 or Vb = V ρ Air flow capacity at 40% above valve setting (see DIN 4119) Curves indicated by require special weight loads b ,8 0,6 0,5 0,4 0,3 0,2 0,1 0, vacuum setting p (mbar) DN 350 DN 300 DN 250 DN 200 DN 150 DN 125 DN 100 DN 80 DN ,8 0,6 0,5 0,4 0,3 0,2 0,1 0, pressure setting p (mbar) DN 350 DN 300 DN 250 DN 200 DN 150 DN 125 DN 100 DN 80 DN 50 gas flow V (Nm 3 /min) E 0174 N 0313

8 KITO VD/OL Example to order: DN 150 with overpressure pallet DN 80: KITO VD/OL 150/80 setting (mbar) DN ANSI D H H1 H2 C C1 kg* vacuum pressure min max sizes min max 50 PN DN DN PN DN DN DN PN DN DN DN PN DN DN DN DN PN DN DN DN DN PN DN DN DN DN PN DN DN DN Dimensions in mm * Indicated weights are understood without weight load and refer to the standard design Standard valve setting 7-30 mbar -different settings against additional price- performance curves: Standard design housing : steel, stainless steel mat no valve seats / spindles : stainless steel mat no valve seals : NBR, Viton, PTFE weather hood : stainless steel mat no 14301, protective screen : stainless steel mat no 14301, flange connection : DIN EN form B1, ANSI 150 lbs (lateral or vertical) as end-of-line armature, for venting apertures on tank installations Used mainly as venting and breather device for fixed roof tanks Used to prevent inadmissible pressure and vacuum and to minimize unwelcome gas losses or inadmissible emissions respectively The housing is mounted perpendicularly on a tank roof _ E 1710 N 0813

9 KITO VD/OL E 1710 N The flow capacity V refers to a density of air with ρ = 129 kg/m³ at a temperature of 273 K and a pressure of 1013 mbar The indicated flow rates will be reached by an accumulation of 40% above valve s setting The flow capacity for gases with different densities can be calculated sufficiently accurate by the following approximation equation: V 40% ρ b Vb = V40% ρ = V b or Indicated flow rates will be reached by an accumulation of 40% above valve s setting b _ E N 0813

10 KITO VD/OL-1 ød Example to order: DN 150 with overpressure pallet DN 80: KITO VD/OL-1 150/80 H2 H1 H C C1 DN setting (mbar) DN ANSI D H H1 H2 C C1 kg vacuum* pressure** min max sizes min* max 50 PN DN 25 u PN DN 50 u PN DN 50, 80 u PN DN 50, 80 u DN PN DN 50, 80 u DN DN 80, PN DN DN DN PN DN DN 200, Dimensions in mm Indicated weights are understood without weight load and refer to the standard design * Standard valve setting 7-30 mbar -different settings against additional price- ** minor settings see type sheet E 1710 N, higher settings on request performance curves: _ Standard design housing : steel, stainless steel mat no valve pallet (pressure) : spring loaded valve pallet (vacuum) : weight loaded valve seats / spindles : stainless steel mat no valve seals : metal sealing spring loaded parts : stainless steel compression spring : stainless steel weather hood : stainless steel mat no 14301, protective screen : stainless steel mat no 14301, flange connection : DIN EN form B1, ANSI 150 lbs (lateral or vertical) as end-of-line armature, for venting apertures on tank installations Used mainly as venting and breather device for fixed roof tanks Used to prevent inadmissible pressure and vacuum and to minimize unwelcome gas losses or inadmissible emissions respectively The housing is mounted perpendicularly on a tank roof E N 0813

11 Combined Relief Valve KITO VD/o2 ød pressure relief pallet I protective gas H inert gas inlet (vacuum relief pallet) II H1 DN DN C DN ANSI D C H H1 kg* setting I (mbar) setting II (mbar) min max min max 50 PN PN PN Dimensions in mm * Indicated weights are understood without weight load and refer to the standard design Standard valve setting 7-30 mbar -different settings against additional price- Standard design housing : steel, mat no 14571, valve seat / valve spindle : mat no gasket : NBR, Viton, PTFE weather hood : mat no 14301, mat no protective screen : mat no 14301, mat no flange connection : DIN EN form A, ANSI 150 lbs RF performance curves: E 018 N as end-of-line armature, preferably for inflammable liquids stored under inert gas, for venting and breathing of fixed roof tanks and above-ground tanks, with lateral connection for the inert gas conduit The upper valve arrangement, which consists of a pressure valve, prevents the development of inadmissible pressure The lower valve serves to automatically control the supply of inert gas (e g nitrogen) and adjusts the necessary inert gas pressure in the tank For the max admission pressure see setting II E 18 N 1111

12 Combined Relief Valve KITO VD/o2 E 18 N Flow capacity V based on air of a density ρ = 129 kg/m³ at T = 273 K and atmospheric pressure p = 1013 mbar For other gases the flow can be approximately calculated by V b = V or ρ b 1 29 V 129 b = V ρ b Air flow capacity at 40% above valve setting (see DIN 4119) If different accumulations are required see page A 31 for correcting factor Curves indicated by require special weight loads E 018 N 1111

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