SMC VR51-C06B Two-Hand Control Valve

VR51-C06B-SMC is a two-hand safety control valve manufactured by SMC. The standard model is VR51-C06B, with “-SMC” as the brand identifier. This product belongs to the VR51 series and is a key component in industrial automation safety control, used to prevent hand crushing injuries and similar accidents during operation.

Parámetros principales & Presupuesto

Artículo	Especificación
Tipo	Two-hand safety control valve, 3/2 way
Operating pressure range	0.25 ~ 1 MPa (2.5 ~ 10 bar)
Proof pressure	1.5 MPa
Temperatura ambiente	-5 ~ 60°C (no freezing)
Port size	Metric ø6 mm, Imperial ø1/4″
Body material	Die-cast aluminum alloy
Flow characteristic	máx.. tasa de flujo 1 L/s
Actuation	Output only when both buttons are operated simultaneously (dentro 0.5 artículos de segunda clase)
Proceso de dar un título	Complies with EN574 / EN ISO 13851 safety standards
Interchangeability	Interchangeable with XT92-67□ series

Funciones & Application Features
Safety control core: Enforces simultaneous two-hand operation to prevent operators from placing hands in hazardous areas during machine operation.
Fast response mechanism: Strict 0.5-second time limit for two-hand operation ensures reliable safety interlocking.
Independent control design: Functions as a standalone unit and can form complete safety circuits with push-button mechanical valves, air-operated valves, etc..
Installation flexibility: Optional mounting bracket available for various industrial environments.
Adaptabilidad ambiental: Wide operating temperature range suitable for most industrial conditions.
Explicación del código del modelo

VR51: código de serie, two-hand control valve

C06: Port size, ø6 mm

B: Structure type with push-button operation and bracket

Aplicaciones

Metalworking equipment: punching, shearing, bending machines

Pressure forming machinery: máquinas de moldeo por inyección, die-casting machines

Hazardous stations on automated assembly lines

All industrial equipment requiring simultaneous two-hand operation for safety

Complete Model List of SMC Two-Hand Control Valves (VR51 Series)

Model Nomenclature

VR51 – [Tamaño del puerto] - [Option] – SMC

Parte	Significado	Available Values
VR51	código de serie	Fijado: two-hand safety control valve
Port size	One-touch fitting size	C06 (ø6 mm, metric), C07 (ø1/4″, imperial)
Option	Mounting type	Ninguno (estándar, no bracket), B (with bracket VR51B)
SMC	Brand identifier	Fijado

Lista completa de modelos

Modelo	Tamaño del puerto	Montaje	Conexión	Suitable Tubing	Notas
VR51-C06-SMC	C06	Without bracket	ø6 mm (metric)	Nylon, soft nylon, polyurethane, FR soft nylon, etc..	Tipo estándar, complies with EN574/EN ISO 13851
VR51-C06B-SMC	C06	With bracket VR51B	ø6 mm (metric)	Nylon, soft nylon, polyurethane, FR soft nylon, etc..	With mounting bracket for fixed installation
VR51-C07-SMC	C07	Without bracket	ø1/4″ (imperial)	Nylon, soft nylon, polyurethane, FR soft nylon, etc..	Imperial port, for North American market
VR51-C07B-SMC	C07	With bracket VR51B	ø1/4″ (imperial)	Nylon, soft nylon, polyurethane, FR soft nylon, etc..	Imperial port with mounting bracket

General Specifications (Whole Series)

Artículo	Especificación
Tipo	Two-hand safety control valve, 3/2 way
Operating pressure	0.25 ~ 1 MPa (2.5 ~ 10 bar)
Proof pressure	1.5 MPa
Temperatura ambiente	-5 ~ 60°C (no freezing)
Body material	Die-cast aluminum alloy
Flow characteristics	P→A: C=0.3 dm³/(s·bar), A→R: C=0.12 dm³/(s·bar), Cv=0.25
Actuation	Output only with simultaneous two-hand operation within 0.5 s
Standards	EN574:1996+A1:2008, Type IIIA
Interchangeability	XT92-67□ series compatible
Peso	Aprox.. 340 gramo
Accesorios	Muffler AN101-01 (opcional), Bracket VR51B (opcional)

Model Selection Guide

By Port Size

Asian market: C06 (ø6 mm) recomendado

mercado norteamericano: C07 (ø1/4″) recomendado

By Installation

For fixed installation: select models with suffix B (including bracket)

For temporary installation or limited space: standard models without B

Safety Notes

Output is enabled only when both buttons are pressed simultaneously within 0.5 artículos de segunda clase.

Operating pressure must be 0.25–1 MPa; below 0.25 MPa, safety performance is not guaranteed.

Used on hazardous machines such as presses, shears, and benders to prevent hand injuries.

SMC two-hand control valves (mainly VR51 series) require simultaneous operation of both hands to start equipment, preventing crushing, pinching, or shearing injuries caused by operators reaching into danger zones with one hand. They are mainly used on machinery with crushing, punching, shearing, or mold-closing hazards.

Typical Equipment