VB series-Soft sealing-poppet-type-Tubular type one-way check valve
1. Structure and symbol

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Valve body | ED sealing | sealing | gasket | Spool | O-ring | Spring | Spring seat | adapter |
2. Operation
When pressure at①rises above the spring bias pressure,the poppet is lifted and flowallowed from①to②.
The valve is closed(checked)from②to①
Match through 90°valve core and composite material seal ring and the valve cone sea to realize the seal.Thevalve core opening has the localization,therefore the opening is reliable,the vibrate issmall,the noise is lowand the valve flow area is uniform distribution.The recommendation maximum flow speed does not surpass8m/s (to enhanceflow speed need to pass through specilly experiment)
2.1 Crack Pressures:The standard is0.5 bar,can provide 0.2,0.7,1,2,3,4,5,6,7 bar,he opening pressure changes in±20%permission
2.2 Ideal working temperature:NBR:-20°C-+90°C/FKM:-5°C-+180°C/HNBR:40°C-+120°C
2.3 Installation torque:refer to 4.Torque description,note:the body material is carbon steel,and the screwed in parts are steel,For other materials,please contact auer engineer
2.4 Oil cleanliness:I504406:1999 standard 4μM/6μM/14μM19/17/14
2.5Auer provides a damping one-way valve.Please contact Aue's engineer for the size of the dampinghole
3. Pressure Drop VS. Flow

4.Data sheet

| CODE | THREAD | D1 [mm] | T1 THREAD | DN | L1 | L3 | L4 | S1 | S2 | S3 | TORQUE | W.T | W.P |
| [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | (N.m) | (g) | (bar) | ||||
| V06LB02ED | M12X1.5 | 6 | G1/8A | 3.5 | 35 | 8 | 42.5 | 17 | 17 | 14 | 15-25 | 47 | 400 |
| V08LB04ED | M14X1.5 | 8 | G1/4A | 5.5 | 37 | 12 | 44.5 | 19 | 19 | 17 | 20-35 | 62 | 400 |
| V10LB04ED | M16X1.5 | 10 | G1/4 A | 7.5 | 46 | 12 | 53 | 22 | 24 | 19 | 25-40 | 105 | 400 |
| V12LB06ED | M18X1.5 | 12 | G 3/8A | 9.5 | 50 | 12 | 57 | 27 | 30 | 22 | 30-45 | 175 | 400 |
| V15LB08ED | M22X1.5 | 15 | G1/2A | 11 | 53 | 14 | 60.5 | 27 | 32 | 27 | 40-70 | 205 | 400 |
| V18LB08ED | M26X1.5 | 18 | G1/2A | 14 | 58 | 14 | 66 | 36 | 41 | 32 | 60-100 | 294 | 400 |
| V22LB12ED | M30X2.0 | 22 | G 3/4 A | 18 | 63 | 16 | 71 | 41 | 46 | 36 | 100-135 | 450 | 250 |
| V28LB16ED | M36X2.0 | 28 | G1A | 23 | 71 | 18 | 79.5 | 50 | 55 | 41 | 260-360 | 720 | 250 |
| V35LB20ED | M45X2.0 | 35 | G11/4 A | 29 | 80 | 20 | 90.5 | 60 | 65 | 50 | 150-240 | 1050 | 250 |
| V42LB24ED | M52X2.0 | 42 | G11/2A | 29 | 80 | 22 | 91 | 65 | 70 | 60 | 300-400 | 1560 | 250 |
| V06SB04ED | M14X1.5 | 6 | G1/4 A | 3.5 | 38.5 | 12 | 46 | 19 | 19 | 17 | 20-35 | 73 | 420 |
| V08SB04ED | M16X1.5 | 8 | G1/4 A | 3.5 | 38.5 | 12 | 46 | 19 | 19 | 19 | 25-40 | 79 | 420 |
| V10SB06ED | M18X1.5 | 10 | G 3/8 A | 5.5 | 45.5 | 12 | 54 | 22 | 24 | 22 | 30-35 | 132 | 420 |
| V12SB06ED | M20X1.5 | 12 | G 3/8 A | 7.5 | 48.5 | 12 | 57 | 24 | 27 | 24 | 35-45 | 153 | 420 |
| V14SB08ED | M22X1.5 | 14 | G1/2A | 9.5 | 53 | 14 | 62 | 27 | 32 | 27 | 40-70 | 230 | 420 |
| V16SB08ED | M24X1.5 | 16 | G1/2A | 11 | 57 | 14 | 66 | 32 | 36 | 30 | 50-80 | 293 | 420 |
| V20SB12ED | M30X2.0 | 20 | G 3/4 A | 15 | 63 | 16 | 73.5 | 41 | 50 | 36 | 100-135 | 511 | 420 |
| V25SB16ED | M36X2.0 | 25 | G1A | 19 | 67 | 18 | 78.5 | 46 | 55 | 46 | 150-240 | 648 | 420 |
| V30SB20ED | M42X2.0 | 30 | G11/4 A | 24 | 78 | 20 | 90.5 | 60 | 60 | 50 | 260-360 | 1176 | 250 |
| V38SB24ED | M52X2.0 | 38 | G11/2A | 29 | 86 | 22 | 100 | 65 | 70 | 60 | 300-400 | 1624 | 250 |