Safety valve with unit approval type MV..X.., SV..X..

Transcription

1 Safety valve with unit approval type MV..X.., SV..X.. Operating pressure p max = 0 bar Flow Q max = 0 lpm Safety valve type CMVX 2.. with unit approval see D 77 TÜV These safety valves are intended for accumulators in hydraulic circuits, covering the following regulations: o Pressure device regulation 97/23 EC o Operational safety regulation date / Use of Work Equipment Directive 09//EC o AD regulations 00, sheet A2 (latest release) 1. General These safety valves are available in three housing designs and three sizes. Selection is via the intended pressure setting (pressure range) and the intended flow (permissible flow), i.e. pump delivery flow must be lower than the flow rating of the valve (see in tables of sect. 2.1, 2.2, and 2.3). The desired pressure setting has to be stated at the end of the order coding as the valve will be set accordingly before it is lead sealed at HAWE. This setting will be also integrated in the unit approval No. stamped on the valve body. Elbow valve for direct pipe connection (page 1) Inline valve for direct pipe connection (page 2) Valve for manifold mounting (page 2) Valve, cartridge design (page 2) 2. Available versions, main data 2.1 Elbow valve for direct pipe connection Order coding example: MVX 2 B, order coding Spring housing made of Unit approval coding Nom.# of cone and seat spheroidal zinc die casting casting Q perm (lpm) Tapped ports conf. ISO /1 (BSPP) MVSX 1 E MVSX 2 E MVSX 1 C MVSX 2 C MVSX 1 B MVSX 2 B MVX 1 E MVX 2 E MVX 1 C MVX 2 C MVX 1 B MVX 2 B TÜV.SV F..p TÜV.SV F..p MVSX 1 and MVX 1 = G 1/ MVSX 2 and MVX 2 = G 3/ MVSX 2 E MVSX 3 E MVSX 2 E MVSX 3 E MVSX 2 E MVSX 3 E MVSX 2 D MVSX 3 D MVX 2 E MVX 3 E MVX 2 E MVX 3 E MVX 2 E MVX 3 E MVX 2 D MVX 3 D TÜV.SV F..p TÜV.SV F.0.p TÜV.SV F.0.p MVSX 2 and MVX 2 = G 3/ MVSX 3 and MVX 3 = G 1/2 2.3 MVSX 3 E MVSX E MVX 3 E MVX E TÜV.SV F..p MVSX 3 E MVSX E MVSX 3 D MVSX D MVSX 3 C MVSX C MVX 3 E MVX E MVX 3 D MVX D MVX 3 C MVX C TÜV.SV F.0.p TÜV.SV F.0.p MVSX 3 and MVX 3 = G 1/2 MVSX and MVX = G 3/ MVSX 3 B MVSX B MVX 3 B MVX B TÜV.SV F.0.p HAWE Hydraulik SE STREITFELDSTR MÜNCHEN D 7000 TÜV 193 by HAWE Hydraulik August 11

2 D 7000 TÜV page Inline valve for direct pipe connection Coding example: SVX 2 C 0, order coding Unit approval coding Nom.# of cone and seat Q perm(lpm) Tapped ports conf. ISO /1 (BSPP) SVX 2 E SVX 2 C TÜV.SV. 19..F.3.p TÜV.SV. 19..F..p TÜV.SV. 19..F.3,.p TÜV.SV. 19..F..p 3 3, SVX 2 = G 3/ SVX 2 B TÜV.SV. 19..F..p Valve for manifold mounting Coding example: MVPX E 0, order coding Unit approval coding Nom.# of cone and seat Q perm(lpm) MVPX E MVPX C TÜV.SV F..p MVPX B MVPX E TÜV.SV F..p TÜV.SV F.2.p MVPX D TÜV.SV F..p MVPX E TÜV.SV F..p TÜV.SV F.0.p MVPX D TÜV.SV F.0.p MVPX C TÜV.SV F.0.p MVPX B TÜV.SV F.0.p

3 D 7000 TÜV page 3 2. Cartridge valve Coding example: MVEX E 0 3/ A Table 1, order coding Unit approval coding Nom.# of cone and seat Q perm(lpm) MVEX E MVEX C TÜV.SV F..p MVEX B MVEX E TÜV.SV F..p TÜV.SV F.1.p MVEX D TÜV.SV F..p MVEX E MVEX D TÜV.SV F.90.p TÜV.SV F.0.p MVEX C MVEX B TÜV.SV F..p Table 1: Connection block for type MVEX Symbol 1/2 A P and R = G 1/2, with drain valve 3/ A P and R = G 3/, with drain valve 3. Additional parameter Nomenclature and design Installed position Flow direction Directly acting safety valve, seated cone design Any PdR, P = pump; R = return (pressure less) Pressure fluid Hydraulic oil acc. to DIN table 1 to 3; ISO VG to conf. DIN 1 19 Also suitable are biologically degradable pressure fluids of the type HEPG (Polyalkylenglycol) and HEES (synth. Ester) at operation temperature up to approx. +70 C. Oper. viscosity Approx mm 2 /s Contamination rating 21/1/1 conf. ISO 0 Temperature Static overload capacity Ambient: approx C; Fluid: C, pay attention to the viscosity range! See also D /1 sect. 3. Biological degradable pressure fluids: Pay attention to manufacturer s information. With regard to the compatibility with sealing materials do not exceed +70 C. 2 x p max

4 D 7000 TÜV page. Unit dimensions All dimensions in mm, subject to change without notice! MVSX.. and MVX.. SVX.. MVPX.. approx. 31 Illustration shows size, see type MVEX for size and Hole #3 mm for rollpin (indexing) a b b1 c d e e1 g MVPX M a a1 b d1 h h1 h2 Mass (weight) approx. (kg) MVPX.. MVPX M M MV(S)X 1.. MV(S)X 2.. MV(S)X 2.. MV(S)X 3.. MV(S)X 3.. MV(S)X MVPX.. MVPX.. h 39. h1 21 Sealing of ports P and R via Orings NBR 90 Sh x2 x2 Mass (weight) approx. (kg) SVX MVPX x MVEX.. Attention: Observe the notes regarding installation in sect.! MVEX.. MVEX.. MVEX.. MVEX.. h 9. h1 2 D 1 H e d t t MVEX.. MVEX H 2 H Seal ring Backup ring MVEX.. MVEX G M x1. M 2x1. Oring MVEX.. 3 M x1. Mounting hole: Seal ring Oring NBR 90 Sh Backup ring Part No Mass (weight) approx. (kg) MVEX.. A xx1. DIN 703St.37x MVEX.. A 2x3x2 DIN 703Cu.29x MVEX.. A x3x2 DIN 703Cu.29x

5 D 7000 TÜV page MVEX... 3/ A 1/2 A Tapped ports conf. ISO /1 (BSPP): P, R S M 3/ A G 3/ G 1/2 G 1/ 1/2 A G 1/2 G 1/2 G 1/. Notes assembly, operation and maintenance The mounting of the safety valves has to be undertaken with special care. The regulations stated in the pressure device regulation have to be observed. The regular check routines depend on the regulations for safety valves and systems in your country. The illustrated flow direction is mandatory. The correct connection of pump line P and return line R is illustrated in the symbols at General on page one. The return line R has to be connected to the tank and must show a sufficient internal diameter. The max. torque specifications for type MVX, MVSX and type SVX must not be exceeded. Attention: Support the valve while tightening the pipe fittings. The mounting screws of the manifold mounting valves type MVPX, the cartridge valves type MVEX has to be torqued as specified. Use only 1 to torque the valve type MVEX in the mounting hole of the manifold! Attention: Do not damage the wire of the lead seal! Max. torque for pipe fittings at port P and R MVSX spheroidal casting Max. torque (Nm) P R Max. torque (Nm) P R MVX 1 0 SVX zinc die 2 70 casting Max. torque (Nm) P R Max. torque for the mounting screws and for the cartridge valve body (see page ) MVPX Max. torque g (Nm) M 2 M 2 M 0 MVEX Max. torque 1 (Nm) The valve should be installed at a well protected spot or an additional protective cover should be provided to prevent external damage. Care has to be taken that no contamination enters the valve during installation and operation. The contamination class stated in sect. 3 Additional parameter must not be exceeded!

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