VCHR Series. Direct Operated Regulator for 6.0 MPa (Relieving Type) Service life: 10 million cycles. How to Order

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1 Direct Operated Regulator for 6.0 MPa (Relieving Type) VCHR Series Service life: 0 million cycles Using NSF-H-certified grease on the guide ring (sliding) part. Improved durability under a high pressure environment with a polyurethane elastomer poppet Adopting a metal-sealed relief valve to improve durability. Special fluororesin sealant is adopted for the sliding part. Stable responsivess after extended disuse. No likely to subject to a pressure. Made to Order (Refer to page 448 for details.) How to Order VCHR G Symbol Body size Thread type (Conforming to ISO79- on the pneumatic/hydraulic G thread) 444 Symbol /4 /2

2 Direct Operated Regulator for 6.0 MPa (Relieving Type) VCHR Series Specifications Model Valve construction Valve material Relief mechanism G3/4, G Piston type Relieving type G, G /2 Thread type Fluid Max. operating pressure Set pressure range Fluid temperature Ambient temperature Conforming to ISO79- on the pneumatic/hydraulic G thread Air 6.0 MPa 0. to.0 MPa to 60 C to 60 C Weight 4.4 kg 6.2 kg Pressure Characteristics. Condition: Inlet pressure 4.0 MPa Outlet pressure.0 MPa Flow rate 300 L/min (ANR). Condition: Inlet pressure 4.0 MPa Outlet pressure.0 MPa Flow rate 300 L/min (ANR) Inlet pressure (MPa) Flow Rate Characteristics 6 Condition : : Inlet pressure 6.0 MPa : Inlet pressure 4. MPa Inlet pressure (MPa) 6 Condition : : Inlet pressure 6.0 MPa : Inlet pressure 4. MPa VCH VDW SX0 VQ LVM ,000 20,000 30,000 40, ,000 20,000 30,000 40,000 0,000 Flow rate (L/min) Flow rate (L/min) 44 A

3 VCHR Series Construction!6!3 i o!4 e t y @2 Component Parts No. Description Body 2 Bonnet 3 Valve 4 Valve spool Piston 6 Spring guide 7 Spring seat 8 Spool guide 9 Seal A 0 Seal B Guide ring 2 Adjusting bolt 3 Return spring 4 Cushion Poppet 6 Plate 7 Spring 8 Guide ring 9 Guide ring 20 Hexagon socket head cap screw 2 Hexagon nut 22 Hexagon bolt 23 Spring washer 24 O-ring 2 O-ring 26 O-ring 27 O-ring 28 Hexagon socket head plug Material Aluminum + Hard anodized Aluminum + Hard anodized Aluminum + Hard anodized 446

4 Direct Operated Regulator for 6.0 MPa (Relieving Type) VCHR Series Dimensions 90 : G3/4, G 2 x Rc /4: with plug Set pressure detection port ø x ø0. OUT 0 43: G3/4 40: G IN 03 ø80 ø ø40 00 ø IN OUT Max Max. 269 Relief port Adjusting bolt VCH : G,G /2 2 x Rc /4: with plug Set pressure detection port 4 ø0. VDW SX VQ LVM ø8 Relief port ø ø40 Adjusting bolt 447

5 VCHR Series Made to Order Specifications: Please contact SMC for detailed dimensions, specifications and lead time. 6.0 MPa piloted regulator (Air operated type) Remote control is possible with electro-pneumatic regulator ITV. VCHRA Body size G Thread type (ISO79- compliant G thread for hydraulic and pneumatic equipment) Symbol VCHRA30 VCHRA /4 0 4 /2 Symbol Specifications Model Valve construction Valve material Relief mechanism Thread standard Fluid Max. operating pressure Pilot pressure range Set pressure range Fluid temperature Ambient temperature Weight VCHRA30 VCHRA40 Piston type Relieving type G3/4, G G, G /2 Conforming to ISO79- on the pneumatic/hydraulic G thread Air 6.0 MPa Refer to the graph. 0. to 4. MPa to 60 C to 60 C 2.9 kg 4. kg Pilot pressure range Outlet set pressure P2 (MPa) VCHRA40 PA = 0.7 x P x P Inlet pressure P (MPa).0 VCHRA30 PA = 0.20 x P x P Pilot pressure PA (MPa) Note) Outlet pressure may fluctuate under certain conditions. 448

6 VCHR Series Specific Product Precautions Be sure to read this before handling the products. Refer to back page 0 for Safety Instructions and Best Pneumatics No. 6 for Precautions on every series. Caution Adjustment. When adjusting the outlet side pressure, moment is applied on the adjusting bolt. Support it separately so that moment is not applied to the external pipings. Reference for Handle Moment Set pressure Torque MPa 3 2 MPa 6 3 MPa 9 4 MPa 2 Unit: N m MPa 2. When adjusting the outlet side pressure, the adjusting bolt (32 mm width across flats) can be fixed with a wrench. A screwdriver of approximately 20 to 30 cm can also be used for easy adjustments, using the (ø) hole on the width across flats. Warning Caution Piping. When tightening a screw on the piping material, use the recommended torque, holding the female side. Insufficient torque will cause looseness or inferior sealing. However, overtightening will cause damage to the thread. Also, tightening without holding the female side will put excessive direct stress on brackets, etc., resulting in damage, etc. Recommended Tightening Torque Connecting thread Torque 3/4 28 to to 38 Disassembly Unit: N m /2 48 to 0. This product cannot be disassembled since it is made of precision components with a specific tolerance. VCH VDW SX0 VQ LVM 449