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Steam Valve, 2 Port Valve For Steam VND Series (VND702D-50A)

Steam Valve, 2 Port Valve For Steam VND Series VND702D-50A

SMC

SMC

A valve made by SMC.
[Features]
· Use of a PTFE seal makes it suitable for steam.
· Large valve capacity.
· Wide variations.
· With indicator (option)
· Cylinder operated by external pilot air.
· With PTFE seal.

(i)Caution

  • Product images may be representative images. Refer to the catalog for details.

PDF

Part Number

Configured Part Number is shown.

VND702D-50A

2 Port Valve For Steam, Steam Valve, VND Series Specifications

2 Port Valve For Steam, Steam Valve, VND Series external appearance

2 Port Valve For Steam, Steam Valve, VND Series external appearance

ModelPiping Connection Port DiameterOrifice Diameter ø (mm)Flow Rate CharacteristicsWeight (kg)
ThreadFlange*KvConversion Cv
VND10□D-6A1/8-70.91.10.3
VND10□D-8A1/4-1.01.2
VND10□D-10A3/8-1.11.3
VND20□D-10A-154.35.00.6
VND20□D-15A1/2-4.65.4
VND30□D-20A3/4-208.69.90.9
VND40□D-25A1-2513.6161.4
VND50□D-32A1 1/4-3215.7182.3
VND50□D-32F-325.5
VND60□D-40A1 1/2-4032.9383.6
VND60□D-40F-407.2
VND70□D-50A2-5053.6625.7
VND70□D-50F-5010.8

*The accompanying flange should be JIS B 2210 10K (ordinary) or its equivalent

Specifications

Fluid (Main Piping)Steam
Fluid Temperature*1 -5 to 180°C
Ambient Temperature*1: -5 to 60°C
Proof Pressure1.5 MPa
Operating Pressure Range0 to 0.97 MPa
External Pilot AirPressureN.C. Type0.3 to 0.7 MPa
N.O. Type0.1 + 0.25 × (operating pressure) to 0.25 + 0.25 × (operating pressure) MPa - See table (1)
LubricationNot required
Temperature*1: -5 to 60°C
Mounting OrientationFree

*1 No freezing.
*2 The non-lubricated specification are not available for these models.

JIS symbol

JIS symbol

JIS symbol

Table 1. VND□02D Pilot Pressure Valve Type (N.O. Type)

VND□02D pilot pressure valve type (N.O. type) pressure graph

VND□02D pilot pressure valve type (N.O. type) pressure graph

*Keep the pilot pressure within range A against the operating pressure.

Diagram

N.C. type (left drawing) / N.O. type (right drawing) diagram

N.C. type (left drawing) / N.O. type (right drawing) diagram

Component Parts

NumberPart NameMaterialNotes
1Body*BronzeClear coating
2Cover AssemblyAluminum alloyPlatinum silver coated
3Plate Assembly*BrassPTFE/EPR/FKM
4Valve Element*Brass, PTFE-
5Piston AssemblyAluminum alloy-
6Return SpringPiano wire-
7Second Plate AssemblyAluminum alloy-

*Body option S is stainless steel.

Operating Principle

For VND□00/04□ (N.C. Type)

When air is exhausted from 12 (P1) port, valve 4 linked to piston 5 is closed via the action of the return spring 6.

  • For Opening the Valve
    　When pressurized air enters through port 12 (P1), the pilot air that has entered under the piston moves upward, opening the valve.
  • For Closing the Valve
    　When fluid is exhausted from port 12 (P1), the pilot air under the piston is exhausted and the valve closed via the action of the return spring.

For VND□02□ (N.O. Type)

In contrast for the N.C. type, when air is exhausted from port 10 (P2), the valve is held open via the return spring. Pressurized air through port 10 (P2) closes the valve.

Dimensions/Diagram

 

(Units: mm)

 

Piping Connection Port Diameter: 6A, 8A, 10A

Piping connection port diameter: 6A, 8A, 10A dimensions and diagram

Piping connection port diameter: 6A, 8A, 10A dimensions and diagram

  • VND10□D-6A: main port 1 (A), 2 (B) 1/8
  • VND10□D-8A: main port 1 (A), 2 (B) 1/4
  • VND10□D-10A: main port 1 (A), 2 (B) 3/8

Piping Connection Port Diameter: 10A, 15A, 20A, 25A

Piping connection port diameter: 10A, 15A, 20A, 25A dimensions and diagram

Piping connection port diameter: 10A, 15A, 20A, 25A dimensions and diagram

ModelMain Port
1 (A), 2 (B)		ABCDEFGMNPQRSTU
VND20□D-10A3/86342281473.581.5452264.524.32.3253456
VND20□D-15A1/2
VND30□D-20A3/480503517.58593562315.528.32.3304361.5
VND40□D-25A190604422101109672366.533.32.3354974

Piping connection port diameter: 32A, 40A, 50A

Piping connection port diameter: 32A, 40A, 50A dimensions and diagram

Piping connection port diameter: 32A, 40A, 50A dimensions and diagram

ModelMain Port
1 (A), 2 (B)		Pilot Port
12 (P1), 10 (P2)		ABCDEFGHJ
VND50□D-32A1 1/41/8105775326.5121.520130.5855
VND60□D-40A1 1/21/4120966030138241481063
VND70□D-50A21/41401137437161241711274

Piping Connection Port Diameter / Flange Type: 32F, 40F, 50F

Piping connection port diameter / Flange type: 32F, 40F, 50F dimensions and diagram

Piping connection port diameter / Flange type: 32F, 40F, 50F dimensions and diagram

ModelCompatible Companion Flange
1 (A), 2 (B)		Pilot Port
12 (P1), 10 (P2)		ABCDEFGHJ
VND50□D-32F321/8130211.51351352010036128
VND60□D-40F401/415022714014724105421210
VND70□D-50F501/4180251155163.524120541412

Precautions

External Pilots

For the pilot port 12 (P1) and 10 (P2) piping, follow the information below for the relevant model.

  • Port 12 (P1): VND□O□D external pilot / VND□O2D bleed port
  • Port 10 (P2): VND□O□D bleed port / VND□O2D external pilot

SMC recommends installing a silencer on the bleed port to prevent debris from getting into the valve.

Piping

Use heat resistant parts for fittings, tubing, etc. (Compression fittings, fluorine resin tubes, copper piping, etc.)

Other Precautions

  • *See the SMC catalog for information other than that detailed above.
  • *Pictures are of representational models.

Adiabatic Space

There is a gap between the body and cover for heat insulation (*approx. 1 mm [see figure below]).

Detailed view of adiabatic space

Detailed view of adiabatic space

30
45
60
  1. 1
Part Number
VND702D-50A
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipSwitching Type Connection Type Plumbing Thread Nominal Driving Type Tube Flange Nominal Orifice Dia.
(Ø) 		Option Body material

MYR 4,058.12

1 Piece(s) 21 Day(s) Normally Open[Rc (R)] Rc2Pilot Type-50NoneCopper Alloy

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  1. 1
 

Basic Information

Type Air Operating Type Applicable Fluid Steam Operating Environment Standard
Operating Temperature Range(°C) -5::60

Please check the type/dimensions/specifications of the part VND702D-50A in the Steam Valve, 2 Port Valve For Steam VND Series series.

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Specification/Dimensions

  • Tube Flange Nominal

    • 32
    • 40
    • 50

    Clear

  • type

    • VND10
    • VND20
    • VND30
    • VND40
    • VND50
    • VND60
    • VND70

    Clear

  • Switching Type

    • Normally Closed
    • Normally Open

    Clear

  • Connection Type

    • Rc (R)
      • Rc
    • G
    • NPT
    • Tube Flange

    Clear

  • Plumbing Thread Nominal

    • 1/8
    • 1/4
    • 3/8
    • 1/2
    • 3/4
    • 1
    • 1 1/4
    • 1 1/2
    • 2

    Clear

  • Driving Type

    • Pilot Type

    Clear

  • Orifice Dia.(Ø)

    • 7
    • 15
    • 20
    • 25
    • 32
    • 40
    • 50

    Clear

  • Option

    • None
    • With Bracket
    • With bracket and indicator (for visual verification of operation)
    • With indicator (visual verification of operation)

    Clear

  • Body material

    • Copper Alloy
    • Stainless steel

    Clear

  • CAD

    • 2D
    • 3D

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Days to Ship

    • All
    • 21 Day(s) or Less

    Clear

Specify Alterations

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Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipSwitching Type Connection Type Plumbing Thread Nominal Driving Type Tube Flange Nominal Orifice Dia.
(Ø) 		Option Body material

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1 Piece(s) Quote Normally OpenG3/8---With indicator (visual verification of operation)Copper Alloy

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MYR 947.77

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