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Yoshitake SCV-3, Product Manual, Page: 2 / 6

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Yoshitake SCV-3 Product Manual Download Page 2

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EPDT-284c

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  Usage of the Product 

 
The SCV-3 check valve is to prevent backflow of fluid. It is widely used in steam pipelines or cold and hot water 
pipelines. 

 

 

1.  Features 

 

1.  Flangeless wafer type applicable for various flange standards. 
2.  Can be connected in any posture (horizontal or vertical). 

 

2. Specifications 

 

Model 

SCV-3 

Nominal size 

15A-100A 

Application 

Steam, Cold and hot water 

Maximum pressure 

2.0 MPa 

Applicable temperature 

5-220 

℃

 

Installation posture 

Installable in any orientation 

Connection 

Flangeless (wafer type)

 

 

See “8. Connectable flange standard table” on Page 4 

Minimum valve opening 

pressure 

0.003 MPa 

Body 

SCS14A 

Disc 

SCS14A 

* The product cannot be disassembled. 
*  Since  a  small  amount  of  fluid  leaks  out  of  the  product,  it  cannot  be  used  for  applications  requiring 
complete closing. 

 

            Caution 

Please confirm that the indications on the product correspond with the specifications 
of the ordered product model before use. 
* If they are different, do not use the product and contact us. 

 

3.  Structure, Dimensions and Weights 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

No. 

Part name 

1 

Body 

2 

Disc 

3 

Spring 

4 

Spring Plate 

Summary of Contents for SCV-3

Page 1: ...voided could result in death or serious injury Caution This symbol indicates a hazardous situation that if not avoided may result in minor or moderate injury or may result in only property damage Table of Contents Usage of the Product 1 1 Features 1 2 Specifications 1 3 Structure Dimensions and Weights 1 2 4 Pressure loss 2 5 Installation 3 5 1 Precaution for installation 3 6 Operating procedure 3...

Page 2: ... Installation posture Installable in any orientation Connection Flangeless wafer type See 8 Connectable flange standard table on Page 4 Minimum valve opening pressure 0 003 MPa Body SCS14A Disc SCS14A The product cannot be disassembled Since a small amount of fluid leaks out of the product it cannot be used for applications requiring complete closing Caution Please confirm that the indications on ...

Page 3: ... 5 80 5 0 4 32A 32 60 5 28 72 5 49 5 90 5 0 7 40A 40 70 31 5 82 57 5 101 0 9 50A 50 90 40 95 5 76 115 1 5 65A 65 102 45 116 87 142 2 2 80A 80 121 50 129 5 105 5 153 5 2 9 100A 100 145 60 154 5 128 180 4 5 Fig 1 Structure dimensions and weights 4 Pressure loss Fluid water Fig 2 Pressure loss chart V Flow rate L min ΔP Pressure loss MPa ...

Page 4: ... excessive load torque or vibration cannot be applied to the product Be sure to connect the product to piping firmly Failure to follow this notice may cause fluid leakage and result in burns or property damage 4 On installation align center part of the product with that of flange by making fin shaped part contact with bolt as indicated in the figure below 6 Operating procedure 6 1 Precaution for o...

Page 5: ... Precaution for maintenance Warning Completely discharge the internal pressure from the valves lines and equipment and cool the valve down to a level where you can touch it with bare hands before disassembly and inspection Failure to do so may result in injury or burns due to residual pressure or spillage around the valve 8 Connectable flange standard table SCV 3 Nominal size JIS ASME JPI PN EN DI...

Page 6: ...A φ 159 φ 115 φ 159 φ 129 M16 130 8 The bundled bolts and nuts are not made of stainless steel The inlet gasket is equivalent to JIS B2404 Table4 10K dimensions The flange is not included in the bundled parts Caution 1 As shown in Table 1 the Inlet diameters of the gasket differ between the inlet side and the outlet side Refer to Table 1 to avoid piping mistakes Failure to follow this notice cause...

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