5.0 MPa Check Valve, VCHC40 Series
Brand :
SMC
Caution
- Product images may be representative images. Refer to the catalog for details
Product Description
Improved durability in high-pressure environments, thanks to the polyurethane elastomer poppet
5.0 MPa Check Valve, VCHC40 Series Specifications
VCHC40 Series external appearance
VCHC40 Series symbol
VCHC40 Series features
| Model | VCHC40 | |
|---|---|---|
| Operating pressure | 0.05 to 5.0 MPa | |
| Cracking pressure | 0.05 MPa | |
| Orifice diameter | ø16 (orifice diameter 16 mm) | |
| Flow rate characteristics | C value (effective cross-sectional area) | 28 dm3/(s/bar) (140 mm2) |
| b | 0.15 | |
| Cv | 7.4 | |
| Fluid | Air | |
| Fluid temperature | 5 to 80°C | |
| Ambient temperature | 5 to 80°C | |
| Body material | Brass | |
| Sealing material | Polyurethane elastomer | |
| Port size | G3/4, 1 (Conforming to ISO 1179-1 on the pneumatic/hydraulic G thread) | |
| Mounting orientation | Unrestricted | |
| Weight | 1.02 kg | |
Structure drawing
VCHC40 Series Structure Drawing
| Number | Part name | Material |
|---|---|---|
| 1 | Body | Brass |
| 2 | O-ring | NBR |
| 3 | Piston | Aluminum + hard anodized aluminum |
| 4 | Poppet | Polyurethane elastomer |
| 5 | Set screw | Stainless steel |
| 6 | O-ring | NBR |
| 7 | Nut | Stainless steel |
| 8 | Guide ring | Resin |
| 9 | Spring | Stainless steel |
| 10 | Plate | Steel + electroless nickel plated |
| 11 | Hexagon socket head cap screw (with SW) | Carbon steel |
Drawings
(Units: mm)
VCHC40 dimensional drawing 1
VCHC40 dimensional drawing 2
VCHC40 dimensional drawing 3
Precautions
Selection
Applicable fluids
- *Corrosive gas: Do not use corrosive gas as it may cause corrosive stress cracks and other problems.
Piping
Wrapping the sealing tape (when R screw is installed)
Wrapping the Sealing Tape
- *Sealing tape is not required as this product uses a pneumatic and hydraulic purpose G thread which conforms to ISO 1179-1.
- *When an R (taper) thread is used, leave 1 to 2 threads exposed at the tip before winding the sealing thread around it 4 to 5 times.
Always tighten threads with the proper tightening torque
*When attaching fittings to valves, tighten with the proper tightening torque shown below.
- Connection threads (G, Rc 3/4): Proper tightening torque 28 to 30 N·m
- Connection threads (G, Rc 1): Proper tightening torque 36 to 38 N·m
Operating environment
- *Do not use in locations with an explosive atmosphere.
- *Implement suitable protective measures in locations exposed to water, oil or spatter from soldering, etc.
Maintenance and inspection
Storage
- *In the case of long term storage after use, first thoroughly remove all moisture to prevent rust and deterioration of rubber materials.