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VCS, 2 Port Solenoid Valve for Steam, Single Unit

VCS, 2 Port Solenoid Valve for Steam, Single Unit

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VCS, 2 Port Solenoid Valve for Steam, Single Unit

Product catalog summary

Overview

This document details the technical specifications, ordering information, dimensional data, and component descriptions for Series VCL, VCB, and VCS direct operated 2-port solenoid valves. These valves are designed for oil, heated water, and steam applications respectively, covering valve construction, materials, electrical options, performance parameters, and manifold assembly instructions.

1. Valve Classification and Series

Valves are classified into Class 2, 3, and 4 based on performance and specifications.
Series include VC, VCL (oil), VCB (heated water), and VCS (steam).
Models include VCB21, VCB31, VCB41, VCS21, VCS31, VCS41, and manifold assemblies VV2CS2, VV2CS3, VV2CS4.

2. Valve Construction and Materials

Body materials: Brass (C37), Stainless Steel, and CAC407 (heated water).
Seal materials: FKM and EPDM for oil and heated water; PTFE and FKM for steam (FKM recommended below 120°C).
Coil insulation classes: Class B (standard) and Class H (high temperature).

3. Fluid and Operating Conditions

VCL valves: Designed for oil with viscosity up to 50 mm²/s.
VCB valves: Designed for heated water up to 99°C.
VCS valves: Designed for steam with fluid temperatures up to 184°C (PTFE seals) or 120°C (FKM seals).
Maximum withstand pressure: 5.0 MPa (oil, heated water, steam).
Ambient temperature ranges: -20 to 60°C (VCL), -20 to 100°C (VCB and VCS).
Fluid temperature ranges: -10 to 60°C (VCL), 1 to 99°C (VCB), up to 184°C (VCS).
Enclosure rating: Dusttight, low jetproof (IP65 equivalent).
Mounting orientation: Unrestricted.
Vibration and impact resistance tested with no malfunction under specified conditions.

4. Port Sizes and Orifice Diameters

Port sizes available: 1/8", 1/4", 3/8", 1/2", and 3/4" (6A to 20A).
Orifice diameters range from 2 mm to 10 mm depending on class and model.
Specific port size and orifice diameter combinations are defined per class and model; 10 mm orifice is exclusive to FKM seals.

5. Electrical Specifications

Voltage options: 12 VDC, 24 VDC, 48 VAC, 100 VAC, 110 VAC, 200 VAC, 220 VAC, 230 VAC, and 240 VAC.
Coil types: Class B coils include built-in surge voltage suppressors and rectifying circuits (for AC), eliminating differences between inrush and holding power; Class H coils are AC only without suppressors or indicator lights.
Electrical entry types: Grommet (G), Conduit (C), Conduit terminal (T), DIN terminal (D), DIN terminal with light (DL), with Class H limited to G, C, and T.
Power consumption varies by model and coil class (e.g., VCL20 uses 6 W Class B, 22 VA Class H at inrush; VCS2 uses 4.9/4.1 W at 50/60 Hz).
Allowable voltage fluctuation: ±10% of rated voltage.

6. Performance Characteristics

Valve leakage: ≤0.1 cm³/min for oil and water valves; ≤1 cm³/min exterior leakage for steam valves.
Maximum operating pressure differential varies by model and orifice size, typically up to 3.0 MPa for heated water valves and up to 5.0 MPa withstand pressure for steam valves.
Flow coefficients (Cv) and orifice areas (Av) are provided per orifice diameter.
Valve mass varies by size and configuration; detailed values provided for grommet coil types.

7. Ordering Information

Ordering codes specify series, class, body and seal materials, coil insulation, voltage, electrical entry, thread type, port size, orifice diameter, and options such as brackets.
Manifold assemblies ordered by specifying manifold base part number and valve part numbers per station.
Manifold dimensions and port configurations detailed for up to 10 stations.
Blanking plates available for maintenance or future valve additions.

8. Dimensions and Mounting

Comprehensive dimensional tables for valve bodies, brackets, and manifold assemblies included.
Bracket materials: Stainless steel with mounting screws included.
Mounting hole sizes, thread depths, and spacing specified for proper installation.

9. Component Parts and Maintenance

Components include clips, tube assemblies, coil assemblies, armature assemblies, O-rings, return springs, and valve bodies.
Materials vary by valve class and application.
Instructions for coil replacement and parts ordering referenced.

Critical Notes and Recommendations

Use Class H coils for ambient or fluid temperatures above 60°C.
Class B coils with AC include rectifying circuits, eliminating differences between inrush and holding power.
Consult manufacturer for voltages not listed.
Ensure correct port size and orifice diameter combinations as per model selection tables.
Electrical entry types for Class H coils limited to G, C, and T without surge suppressors or indicator lights.
For low pressure steam below 120°C, FKM seal material is recommended.
Brackets are supplied with the main valve body.

Summary

This document serves as a comprehensive technical reference for selecting, ordering, installing, and maintaining Series VCL, VCB, and VCS direct operated 2-port solenoid valves for oil, heated water, and steam applications. It provides critical data on materials, electrical specifications, performance parameters, dimensional details, and manifold assembly configurations to ensure proper application and reliability.

Catalog excerpts

VCS, 2 Port Solenoid Valve for Steam, Single Unit-1

Direct Operated 2 Port Solenoid Valve For Oil How to Order Valves (Single Unit) ∗ Bracket is packed in the same container as the main body. None Foot type bracket Class 2 Class 3 Class 4 Material and insulation type Symbol Body material Seal material Coil insulation type Nil Class B Brass (C37) D Class H FKM H Class B Stainless steel N Class H Thread type Port size ∗ Class B in AC has a rectifying circuit built-in. ∗∗ Class H is AC only. No rectifying circuit. ∗∗∗ Please consult with SMC regarding other voltages. Electrical entry G – Grommet ∗ Refer to the below table for orifice and port size combinations. T – Conduit terminal D – DIN terminal DL – DIN terminal with light DO – DIN terminal (without connector, with gasket) Orifice diameter and Port Size Combinations Class Port size ∗ All class B coils come with surge voltage suppressor. ∗∗ Available types of electrical entry for type H coil are either G, C and T. (Surge voltage suppressor, light are not equipped.)

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-2

Series VCL Specifications Standard specifications Valve construction High temperature specifications Direct operated poppet Valve specifications Body material Brass (C37), Stainless steel Seal material Ambient temperature (°C) Note 1) Fluid temperature (°C) Location without corrosive or explosive gases Valve leakage (cm3/min) Exterior leakage 0.1 or less (with oil pressure) 0.1 or less (with oil pressure) Mounting orientation Vibration/Impact resistance (m/s2) Note 3) Rated voltage Allowable voltage fluctuation Coil specifications Coil insulation type Power consumption Apparent power Note 1)...

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-3

Direct Operated 2 Port Solenoid Valve For Oil Stainless steel Coil assembly O-ring Return spring Stainless steel Stainless steel, FKM, PPS (Class B only) Armature assembly Tube assembly Stainless steel Refer to pages 314 and 315 for solenoid coil replacement and replacement parts. Dimensions: Bracket VCS VCW 4 x øH Valve mounting hole Bracket Mounting Dimensions/Bracket Material: Stainless Steel Valve model Port size ∗ 2 Mounting screws (for mounting bracket) are included in bracket part no.

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-4

Series VCL Dimensions (N.C.) Grommet: G Class H coil Broken line section Width across flats H Port size Note) ( ) indicates class H.

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-5

Direct Operated 2 Port Solenoid Valve For Oil How to Order Manifold Assembly Thread type Symbol Nil Class 2 Class 3 Class 4 “∗” is the symbol for assembly. Add an “∗” in front of the part numbers for solenoid valves, etc., to be mounted. Symbol Base material Seal material Brass (C37) Nil FKM Stainless steel H Enter together in order, counting from station 1 on the D side. Port size Enter the mounting valve and option part numbers under the manifold base part number. VV2CL2-0501·············· 1 set Manifold part no. ∗ VCL23-5G-2·············· 5 sets Valve part no. (Stations 1 to 5) How to Order...

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-6

IN port 2 x 3/8∗ ∗: Thread type Plug provided on U side at shipping. OUT port n x 1/4∗ n x 1/8∗ ∗: Thread type 108 150 192 234 276 318 360 402 444 L3 Manifold composition 2 stns. x 1 3 stns. x 1 2 stns. x 2 2 stns. + 3 stns. 3 stns. x 2 2 stns. x 2 + 3 stns. 2 stns. + 3stns. x 2 3 stns. x 3 2 stns. x 2 + 3 stns. x 2 Note) Manifold base is consisted of the junction of 2 and 3 station bases. Conduit Note) Conduit terminal Note) ( ) indicates class H.

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-7

Direct Operated 2 Port Solenoid Valve For Heated Water VXZ Made to order specifications Oil-free specification Foot type bracket F ∗ Bracket is packed in the same container as the main body. Class 2 Class 3 Class 4 Material and insulation type Symbol Body material Seal material Coil insulation type Nil FKM CAC407 (BC7) EPDM M Class H FKM N Stainless steel EPDM P Electrical entry 100 VAC 1 200 VAC 2 110 VAC 3 220 VAC 4 240 VAC 7 48 VAC 8 230 VAC J ∗ Please consult with SMC regarding other voltages. Thread type Orifice size C – Conduit ∗ Refer to the below table for orifice and port size combinations....

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-8

Series VCB Standard Specifications Valve construction Direct operated poppet Heated water (99°C or less) Valve specifications Body material Seal material Dusttight, low jetproof (equivalent to IP65) Location without corrosive or explosive gases 0.1 or less (With water pressure) 0.1 or less (With water pressure) Mounting orientation Coil specifications Vibration/Impact resistance (m/s2) Note 1) Rated voltage 30/150 or less 48 VAC, 100 VAC, 110 VAC, 200 VAC, 220 VAC, 230 VAC, 240 VAC (50/60 Hz) ±10% of rated voltage Allowable voltage fluctuation Coil insulation type Apparent power (VA) Inrush 50/60...

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-9

Direct Operated 2 Port Solenoid Valve For Heated Water Component Parts Stainless steel Stainless steel/Cu Tube assembly Stainless steel/Ag Coil assembly Stainless steel/FKM Armature assembly Stainless steel/EPDM Stainless steel Return spring Stainless steel Refer to pages 314 and 315 for solenoid coil replacement and replacement parts. Dimensions: Bracket 4 x øH Valve mounting hole Bracket Mounting Dimensions/Bracket Material: Stainless Steel Valve model Port size VCW40-12-06A 56 65 44 ∗ 2 mounting screws (for mounting bracket) are included in bracket part no.

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-10

Series VCB Dimensions Grommet : G Width across flats H Width across flats H Electrical entry

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VCS, 2 Port Solenoid Valve for Steam, Single Unit-11

Direct Operated 2 Port Solenoid Valve For Steam How to Order Valves (Single Unit) Option None Foot type bracket F ∗ Bracket is packed in the same container as the main body. Nil Class 2 Class 3 Class 4 Material and insulation type Symbol Body material Seal material Coil insulation type Nil PTFE Brass (C37) D FKM Class H R PTFE Stainless steel N FKM ∗Please consult with SMC regarding other voltages. Orifice diameter Electrical entry G – Grommet ∗ Refer to the below table for orifice and port size combinations. Orifice diameter and Port Size Combinations T – Conduit terminal Class Port size 4 ∗...

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