CHECK VLVE - DIRECT OPERTED - Series VV Veljan Direct operated Check Valve Series VV are poppet type and designed for a maximum pressure of 35 bar and a flow capacity rangg from 18 l/m for a 3/8 valve to 6 l/m for 1 1/2 valve. Mountg configuration of VV are accordance with International standards such as CETOP, ISO, DIN or NFP. Subplate mountg, L - body and T - body are standard. VV valves can be used as body type units or cartridges for manifold applications. zero-leak condition can be achieved for flow from port to port and free flow the opposite direction. Due to a precise ratio between the ma piston area and its mass, an exceptional fast response can be obtaed. Only a small openg stroke of the poppet causes free flow from port to port. SPECIFICTIONS General Type : Direct operated check valve Design : Poppet type Mountg : VV3 : Threaded body/ Subplate mountg/cartridge VV6 : Threaded body/ Subplate mountg/cartridge VV1 : Threaded body/ Subplate mountg Mountg position : Optional Port sizes (nomal) : 3/8, 3/4, 1 1/ 2 Type of port : Threads Direction of flow : o o o o mbient temperature : -2 C...+6 C (-4 F...+14 F) Special workg : Consult VELJN conditions PERFORMNCE CURVES Hydraulics Operatg Pressure range : - 5 psi ( - 35bar) Crackg pressure : See model code Flow gpm (lpm) : Maximum Nomal VV 3 ( 3/ 8 ) 48 (18) 4 (15) VV 6 ( 3/ 4 ) 95 (36) 72 (27) VV1 ( 1 1/ 2 ) 59 (6) 12 (45) Fluid : Meral oil as per DIN 51524/25 or other fluids on request Fluid temperature range : o o o o -18 C...+8 C ( F...+176 F) Viscosity recoended : 3 cst (18 SSU) Pressure drop p bar (psi) Pressure drop p bar (psi) (174) 12 (145) 1 (116) 8 (87) 6 (58) 4 (29) 2 (174) 12 (145) 1 (116) 8 (87) 6 (58) 4 (29) 2 VV3 5 (13.2) VV6 1 (26) 15 (4) Flow qv lpm (gpm) 1 2 (26.5) (56) Flow qv lpm (gpm) 2 (53) 3 4 (79.5) (16) Pressure drop p bar (psi) (174) 12 (145) 1 (116) 8 (87) 6 (58) 4 (29) 2 VV1 1 2 (26.5) (56) 3 4 5 (79.5) (16) (132) Flow qv lpm (gpm) 6 (158)
CHECK VLVE - DIRECT OPERTED - Series VV ORDERING CODE VV 1-5 3-4 1 - *** Modification Series VV - Check valve (direct operated) Size 3-3/ 8 6-3/ 4 1-11/ 2 Seal Class 1 - una N ( Standard) 5 - Viton Design letter Crackg pressure (pproximate ) Max Pressure 5 - for cartridges only - for body valves only ody Mountg Cartridge - Cartridge (VV3/VV6) Threaded body 1 1 - Threaded body - VV3 = / 2 NPTF ; VV6 = 1 NPTF (2-Ports,1-Port) - 3 Threaded body - VV6 = / 4 NPTF ; VV1 = 1 1/ 4 NPTF (1-Port,1-Port) 6 1 - Threaded body - V3 = / 2.S.P.P. ; VV6 = 1.S.P.P. (2-Ports,1-Port) D - 3 Threaded body - VV6 = / 4.S.P.P. ; VV1 = 11/ 4.S.P.P. (1-Port,1-Port) Subplate mountg 5 psi (35 bar) 3 - Subplate mountg VV3/6/1 Flange body 2 - Flange body - VV6 (2-Ports,1-Port) 1 = 2 = 3 = 4 = 5 = 6 = 7 = VV3 VV6/1 bar bar 2.8 3.5.5.5.3.3 2.2 2.2-9. 1.2 1.2 3. - ody Head - Cap
CHECK VLVE - DIRECT OPERTED - Series VV VV3 (3/8 ) SUPLTE MOUNTING ( #3 ) Weight : 6.6 lbs (2.7 kg ) 1 Panel openg C5 r øc8 2 ø8 3 ø9 X 7 C6 r øc7 4 ø5 Mountg configuration D4 D2 D3 D1 3/8"-16 UNC x.63 dp. (M 1 x 16 dp.) D5 D9 D8 D6 6 1 lock mountg face Flatness.1 /1 length Surface fish.8 2 3 5 4 Location hole ød7 1 2 3 4 5 6 7 8 9 3.54 3.29.827 3.622 ø.25.315.866 ø.65 ø.41 9. 83.5 21. 92. ø6.35 8. 22. ø16.5 ø1.5 1 2 3 4 5.984 3.437 2.626 2.5 25. 87.3 66.7 63.5 C5 C6 C7 C8 4.19 1.18 1.18.75 r.75 r ø3.7 ø.43 16.5 3. 3. 19. r 19. r ø78. ø11. D1 D2 D3 D4 D5 D6 D7 D8 D9 1.41 35.8 1.253 31.8.283 7.2 2.626 66.7 1.315 33.4 ø.28 x ø7.1 x.433 dp. 11. dp. 3.543 9. ø.59 ø15. Ports Function Inlet Oulet Note : For details of Subplate & mtg. Screws please refer page 1
CHECK VLVE - DIRECT OPERTED - Series VV VV3 (3/8 ) SUPLTE Weight : 4.4 lbs ( 2. kg) Location hole 4 3 2 1 1 9 C7 5 7 8 1 ø15 Y X ø14 13 12 Y X C6 C5 6 ø16 ø2 ø4 11 3/8-16 UNC x.63 dp (M1 x 16 dp). 3 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 1.41.846.283 2.626.783 2.315 1.315.563.311 3.346 5.12 4.19 ø.59 ø.28 x.315 dp. ø.275 35.8 21.5 7.2 66.7 19.9 58.8 33.4 14.3 7.9 85. 13. 16.5 ø15. ø7.1 x 8. dp. ø7. 1 1.24 2 ø.41 3.433 4 ø.65 26. ø1.5 11. ø16.5 C5 C6 C7.846.73.47 3.295 2.1.9 21.5 18.5 1.2 83.7 53.3 22.8 **Note: Ports X and Y not required for direct operated check valve. Order No. VSS - P - 8 - G 112 VSS - - 8 - G 113 + 1/2 NPTF 1/2.S.P.P Port sizes X+Y** 1/4 NPTF 1/4.S.P.P. Dimension 3/8-16UNC 1 1 / 4 lg. M1 x 35 DIN 912-12.9 4 Mountg screws* Order No. m.tensile strength at p< 21 bar = 1 dan/ 2 V358-1618 (Torque 68 Nm) at p>21 bar = 12 dan/ 2 V7-739 (Torque 82 Nm) * Mountg screws are cluded subplate order. For valves ordered without subplate, mountg screws must be ordered separately.
CHECK VLVE - DIRECT OPERTED - Series VV VV3 (3/8 ) - THREDED ODY ( #1 & #6 ) Weight : 6.3 lbs (2.8 kg) 1 2 1 4 3 5 4 3 2 1 3.544 9. 1 1.96 49.6 2 3 4 5 3.799 1.24 3.62 1.535 96.5 26. 92. 39. 2 3 4 3.35 2.4 2.28 85. 51.8 58. Ports (2x) Function Inlet Outlet Port sizes 1/2.S.P.P. or 1/2 NPTF
CHECK VLVE - DIRECT OPERTED - Series VV CRTRIDGE WITH CP VV3 ( # ) Weight : 2.24 lbs (1. kg) 2 1 ø13 5 4 3 6 7 15 r 16 r ø14 15 ø12 max 11 1 ø9 max 5 = 1.6 =.8 = µmra ø8 1 2 3 ø7 ø6 max 3/8-24 UNF-.78 dp (M1 x 2 dp) 5 4 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 3.544.75 1.516.4.59.12.45 +.6 ø1.1 ø.59 1.1.69 ø.55 +.2 +.4 ø1.1 +.8 ø.875.16 r 9. 19. 38.5 1. 15. 3. 1.15 +.15 ø28. ø15. 28. 17.5 ø14. ø22.225.4 r +.5 ø28. +.1 +.2 1 2 3 4 5 6 7 ±.8 2.374 6.32 ±.2 2. 2.31.81 ø.7 ø.126 5.8 1.25 ±.8 31.75 ±.2 58.7 2.6 ø17.8 ø3.2 16.6 r 1.5 r Ports Function Inlet Oulet 4 Mountg screws Order No. 3/8"- 24UNF x 1 3 /4 lg. V359-1522 M1 x 45, DIN 912-1.9 V7-7162 ( Mountg screws must be ordered separately) Torque 68 Nm