Direct operated pressure relief valve type DBD

Transcription

1 Direct operated pressure relief valve type DBD NS,, up to 3 Ma up to 50 DAA SHEE - OERAION MANUAL 3 dm /min WK ALICAION A direct operated pressure relief valve type DBD is designed to limit maximum pressure in the entire hydraulic system or in its part. Depending on the type of mounting in the system, the pressure relief valve type DBD can be screwed (cartridge version), mounted into threaded connections (version for threaded connection) or mounted to subplate (version for subplate mounting). DESCRIION OF OERAION DBDSK3/ DBDAK3/ 4 8 he pressure relief valve type DBD mainly consists of body with valve seat (), spring (), pressure setting with adjustment element hexagon socket set screw (3), rotary knob or lockable rotary knob (4), working element poppet (5) for all versions up to Ma or ball () only for valves NS in version up to 3 Ma. Cracking pressure setting is made by variation of spring tension by means of pressure setting (3) or (4). Various springs () (exchangeable) correspond to various ranges of cracking pressure adjustment. A dumping element (7) or (8) is used to eliminate vibrations of the valve. ype DBD - - WK 450.5

2 ECHNICAL DAA Hydraulic fluid Viscosity range Fluid temperature range (in a tank) Ambient temperature range Maximum pressure in port mineral oil Required fluid cleanliness class ISO 4 class /8/5 Nominal fluid viscosity o 37 mm /s at temperature 55 C Maximum operating pressure,8 up to 380 mm /s o recommended C up to 55 o C max - oc up to +70 o C o o - C up to +70 C NS NS NS Ma 3 Ma Ma 3,5 Ma INSALLAION AND OERAION REQUIREMENS. Only fully functional and operational valve must be used.. During the period of operation must be kept fluid viscosity acc. to requirements defined in this Data Sheet - Operation Manual 3. In order to ensure failure free and safe operation the following must be checked: proper working of the valve cleanliness of the hydraulic fluid 4. Due to heating of valve body to high temp., the valve shall be placed in such way to eliminate the risk of accidental contact with the body operation or to apply suitable covers acc. to N - EN ISO and N - EN ISO In order to ensure tightness of the valve block, one should take care of dimension of sealing rings and valve operation parameters given in this Data Sheet - Operation Manual. A person that operates the valve must be thoroughly familiar with this Data Sheet - Operation Manual. DIAGRAMS Graphical symbol of the valve type DBD... WK ype DBD

3 OVERALL AND CONNECION DIMENSIONS versions for cartridge mounting: DBD...K...; K...; K... S4 S3 S S O,5 OD L OD Md S3 S S OD L (stroke) L3 S S OD L5 L L4 (stroke) L7 3 - Adjustment types (hexagon socket set screw) - Adjustment typeh (rotary knob) 3 - Adjustment type A (lockable rotary knob) 4 - Sealring o-ring - dimensions according to a below table 5 - Seal ring -dimensions according to a below table - Distance for removing a key from the lock of adjustment A 7 - Coding for a valve version valve version o-ring item 4 ring item 5 φd φd L L L3 L4 DBD... K... 9, x 3 - pcs/set 7,4 x 4 x,5 - pcs/set ,5 DBD... K... DBD... K... x 3 - pcs/set 34 x 3 - pcs/set 4,7 x 3 x - pcs/set 3 x 39 x - pcs/set ,5 87 valve version DBD... K... DBD... K... DBD... K... L5 4 4 L L7 S S S3 S4 S 8,5 8, φd M8 x,5 M35 x,5 M45 x,5 Md [Nm] weight [kg] 0,4 0,5 ype DBD WK 450.5

4 OVERALL AND CONNECION DIMENSIONS connection dimensions for valve cavity versions: DBD...K...; K...; K... a 0,05 A L7 OD3 OD4 a 0, A 90v OD ODH9 A,5 α OD5 L L L3 OD 0,5-45v L4 L5,5 L8 - Optional location of port (on circuit φ D4) - Optional location of port (on circuit φ D5) nominal size of valve cavity (valve version) NS (DBD...K...) φd φd φd3 φd4 φd5 φd M8 x, ,9 L 5 L 9 L3 L4 35 L5 45 L7 5,5 ± 5 L8 α 5 5 NS (DBD...K...) NS (DBD...K...) M35 x,5 M45 x,5 3 8,5 4 3,9 39, ,5 ± 7 9,5 ± WK ype DBD

5 OVERALL AND CONNECION DIMENSIONS versions for subplate mounting: DBD...;...;... S4 S3 S S 4 O,5 OD () H L S3 S S 5 L3 L3 OD L L (stroke) L3 S L4 (stroke) L7 S 3 () B B OD L5 - Adjustment type S (hexagon socket set screw) - Adjustment typeh (rotary knob) 3 - Adjustment type A (lockable rotary knob) 4 - lug for additional port (connection for pressure gauge) - dimensions according to below table 5 - Seal ringo-ring - dimensions according to a below table - Distance for removing a key from the lock of adjustment A OD3-4 holes L33 L34 valve version DBD DBD DBD o-ring pos. 5 7 x,5 - pcs/set,3 x,4 - pcs/set x 3 - pcs/set B B φd φd φd3 H L L L3 L4 L , 7 95, , valve version DBD DBD DBD L L7 L3 L3 L33 L34 S S S3 S4 S 8 8,5, , port () G/4 G/ G weight [kg], 3,7 7 ype DBD WK 450.5

6 OVERALL AND CONNECION DIMENSIONS subplates type G0/0; G/0; G4/0 for valve versions: DBD...;...;... OD3 - holes (, ) r 0,0/0 mm 0,3 5 4 H OD33 - holes OD3 - counterbores L44 R L45 L4 L4 R OD holes OD counterbores OD34-4 holes 3 B B L4 L47 L48 L49 L50 L43 L4 - Mounting face of valve - Recess in subplate (board) for coupling fittings for threaded pipes 3 - Holes for bolts mounting the valve mounting bolts - 4pcs/set must be ordered separately, dimensions and tightening torques according to below table 4 - hreaded pipe connections 5 - Admissible surface roughness and flatness deviation for a subplate face Nominal size (valve version) subplate B B φd3 φd3 φd33 φd34 φd35 φd3 H L4 L4 L43 L44 NS (DBD...) NS (DBD...) NS (DBD...) G0/0 G/0 G4/ G/4 34 G/ 47 G 7 7,5 7,5 M M8 M ,5 Nominal size (valve version) NS (DBD...) NS (DBD...) NS (DBD...) subplate G0/0 G/0 G4/0 L L4 L47 L48 L49 L50 3 4,5 39, ,5 54 7, , R 5 weight [kg],5 5,5 Nominal size (valve version) subplate bolts mounting valve (must be ordered separately) tightening torque Md [Nm] NS (DBD...) NS (DBD...) NS (DBD...) G0/0 G/0 G4/0 M x 50 -,9 according to N -EN ISO 47-4 pcs/set M8 x 70 -,9 according to N -EN ISO 47-4 pcs/set M8 x 90 -,9 according to N -EN ISO 47-4 pcs/set 5 5 WK ype DBD

7 OVERALL AND CONNECION DIMENSIONS versions for threaded connections: DBD...G...; G...; G...; S4 S3 S S 4 OD4 - - holeso,5 OD () H H L L3 L3 B S3 S S OD L (stroke) OD L3 S S - Adjustment type S (hexagon socket set screw) - Adjustment typeh (rotary knob) 3 - Adjustment type A (lockable rotary knob) 4 - lug for additional port (connection for pressure gauge) - dimensions according to below table 5 - Distance for removing a key from the lock of adjustment A 5 L5 L L4 (stroke) L7 3 L35 OD counterbores OD holes (, ) () B B L33 L3 L34 OD3-4 holes valve version B B φd φd φd φd φd3 φd4 H H L L L3 L4 L5 L L7 DBD... G G/4 5, M ,5 4 8,5 DBD... G G/ 34 9 M8 8 9,5 4 8,5 DBD... G G 47 9 M valve version L3 L3 L33 L34 L35 L3 S S S3 S4 S port () weight [kg] DBD... G G/4, DBD... G G/ 3,7 DBD... G , G 7 ype DBD WK 450.5

8 ERFORMANCE CURVES measured at viscosity ν = 4 mm /s and temperature t = 50 C Charakteristics for working pressure during flow o nominal size p [Ma] 0 5 Q [dm 3/min] 50 nominal size 50 p [Ma] 0 80 Q [dm 3/min] nominal size p [Ma] Q [dm 3/min] 50 WK ype DBD

9 HOW O ORDER Adjustment element set screw rotary knob lockable rotary knob DBD = S = H = A * Nominal size(ns) NS = NS = NS = ype of connection cartridge mounting = K for threaded connection = G for subplate mounting = Series number (-9) - connection and installation dimensions unchanged = X series 3 = 3 ressure setting up to,5 Ma = 5 up to 5 Ma = 50 up to Ma = 0 up to Ma = 0 up to 3,5 Ma = 35 up to Ma = 0 up to 3 Ma (available only for valves NS) = Sealing NBR (for fluids on mineral oil base) FKM (for fluids on phosphate ester base) = no designation = V Further requirements in clear text (to be agreed with the manufacturer) NOES: he valve should be ordered according to the above coding. he symbols in bold are preferred versions in short delivery time. Coding example: DBD S K 3/0 ype DBD WK 450.5

10 Valves type DBDS as safety valves DBDS.../...C and DBDS.../...C with CE certification in accordance with: pressure component directive 97/3/EC directive 00/9/EC (relating to carriage) Valves type DBDS.../...C with CE certification in accordance with: pressure component directive 97/3/EC ALICAION Safety valves type DBDS / C are used as an end device protecting against excessive pressure in protected system (mostly in hydraulic accumulator). DESCRIION OF OERAION Safety valves type DBDS / C consist of an adjustment set and plumbed at required pressure. he maximum pressure is maintained in protected system by the valve. When the pressure exceeds the maximum then excessive fluid is drained. ERFORMANCE CURVES measured at viscosity ν = 4 mm /s and temperature t = 50 C Depending on mounting method, safety valves type DBDS / C can be produced in the following versions: for cartridge mounting version DBDS K/ C for subplate connection version DBDS / C for threaded connection version DBDS G/ C erformance characteristics p-q for valves NS (max discharge capacity of the valve for various pressures of adjustment operation area of the valve must be within the white area of the diagram) o version DBDS.../...C p [Ma] 5,0,5 erformance characteristics not achieved by the valve Q [dm /min] WK ype DBD

11 ERFORMANCE CURVES measured at viscosity ν = 4 mm /s and temperature t = 50 C erformance characteristics p-q for valves NS (max discharge capacity of the valve for various pressures of adjustment operation area of the valve must be within the white area of the diagram) o version DBDS.../...C 8 p [Ma] 9 7 5,5 erformance characteristics not achieved by the valve Q [dm 3/min] erformance characteristics p-q for valves NS (max discharge capacity of the valve for various pressures of adjustment operation area of the valve must be within the white area of the diagram) 35 version DBDS.../...C p [Ma] 5 5 5, Q [dm /min] arametry nie realizowane przez zawór 80 0 ype DBD - - WK 450.5

12 HOW O ORDER DBD S C Adjustment element set screw = S (adjustment element set and plumbed at required pressure) Nominal size(ns) NS = NS = NS = ype of connection cartridge mounting = K for threaded connection = G for subplate mounting = Series number (-9) - connection and installation dimensions unchanged = X series 3 = 3 ressure setting required cracking pressure of the valve should be specified Sealing NBR (for fluids on mineral oil base) FKM (for fluids on phosphate ester base) = no designation = V NOES: he valve should be ordered according to the above coding. Safety valves type DBDS / C are designed for hydraulic fluid in the form of mineral oil type HL + HL (50% / 50%) i.e. for fluid in group in accordance with article 9 point. of the directive 97/3/EC. Drain hose must not be charged under pressure (free fluid drain to the tank). Coding example: DBD S K 3/3 C WK ype DBD

13 Valves type DBD as safety valves with unloading DBDS(H) / C and DBDS(H) / C with CE certification in accordance with pressure directive 97/3/EC ALICAION Safety valves type DBDS(H) / C are used as an end device protecting against excessive pressure in protected system (mostly in hydraulic accumulator). DESCRIION OF OERAION Safety valves type DBDS(H) / C consist of an adjustment set and plumbed at required pressure which additionally allows to unload entirely the system (mostly of hydraulic accumulator). It is impossible to increase set pressure. he pressure can be, however, decreased without damaging plumb. Depending on adjustment method, safety valves type.can be produced in the following versions: with set screw version DBDS / C or with rotary knob version DBDH / C. he valves can also have the following type of connection: for cartridge mounting version DBDS(H) K / C for subplate mounting version DBDS(H) / C for threaded connections version DBDS(H) G / C ERFORMANCE CURVES measured at viscosity ν = 4 mm /s and temperature t = 50 C erformance characteristics p-q for valves NS (max discharge capacity of the valve for various pressures of adjustment operation area of the valve must be within the white area of the diagram) o versions: DBDS.../...C DBDH.../...C p [Ma] 5,0,5 erformance characteris tics not achieved by the valve Q [dm 3/min] ype DBD WK 450.5

14 ERFORMANCE CURVES measured at viscosity ν = 4 mm /s and temperature t = 50 C erformance characteristics p-q for valves NS (max discharge capacity of the valve for various pressures of adjustment operation area of the valve must be within the white area of the diagram) o versions: DBDS.../...C DBDH.../...C 8 p [Ma] 9 7 5,5 erformance characteris tics not achieved by the valve Q [dm 3/min] WK ype DBD

15 HOW O ORDER DBD C Adjustment element set screw = S rotary knob = H Nominal size(ns) NS = NS = ype of connection cartridge mounting = K for threaded connection = G for subplate mounting = Series number (-9) - connection and installation dimensions unchanged = X series 3 = 3 ressure setting required cracking pressure of the valve should be specified Sealing NBR (for fluids on mineral oil base) FKM (for fluids on phosphate ester base) = no designation = V NOES: he valve should be ordered according to the above coding. Safety valves type DBDS (H) / C are designed for hydraulic fluid in the form of mineral oil type HL + HL (50% / 50%) i.e. for fluid in group in accordance with article 9 point. of the directive 97/3/EC. Drain hose must not be charged under pressure (free fluid drain to the tank). Coding example: DBD S K 3/3 C ype DBD WK 450.5

16 ONAR Wadowice S.A. ul. Wojska olskiego Wadowice tel fax WK ype DBD