Solenoid Valves for air VR
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industrial & Commercial Thermal Solenoid valves for air VR Technical Information • GB 3 Edition 05.121 • Quick or slow opening and closing • Flow rate can be restricted • Robust design for a long service life • Suitable for high-duty cycling • Internal bypass orifice can be selected • EC type-tested and certified • Certified by Gosstandart pursuant to GOST-TR

Solenoid valves for air VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Examples of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Solenoid valve for air VR..N,...

VR..R..N quick opening/closing VG..R..R slow opening/closing VG..F..N quick opening/closing Robust solenoid valves for air VR for staged control of industrial burners in cold-air operating mode. For heavy duty use in industrial heat generation.

Metallurgical industry: forging furnace Ceramics industry: intermittent shuttle kiln Aluminium industry: smelting furnace

2 Certification EC type-tested and certified Meets the requirements of the – Low Voltage Directive (2006/95/EC), – EMC Directive (2004/108/EC). Approval for Russia Certified by Gosstandart pursuant to GOST-TR. Approved by Rostekhnadzor (RTN). Scan of the approval for Russia (RUS) – see www. docuthek.com ➔ Elster Kromschröder ➔ Products ➔ 03 Valves and butterfly valves ➔ Solenoid valves for air VR ➔ Kind of document: Certificate ➔ VG B00071 (nationales Zertifikat Russland) (RUS)

3 Function 3.1 Solenoid valve for air VR..N, quick opening and closing Solenoid coil Iron core Closing spring Valve seat Valve disc Restrictor The solenoid valve for air VR is closed when de-energized. seat. The solenoid valve for air VR closes and the air supply is stopped. Opening: the applied AC voltage is rectified and generates a powerful magnetic field in the solenoid coil. The magnetic field attracts the iron core and lifts the valve disc from the valve seat, acting against the effective inlet pressure and the closing spring force. The solenoid valve for air VR opens and the air...

3.2 Solenoid valve for air VR..R, slow opening and closing Ball Damping unit fully damped Start rate The solenoid valve for air VR..R opens and closes within 4 s. By turning the damping unit, the start rate can be set between 0 and 70% of the flow rate: The stem of the iron core is connected to the damping spindle via a ball. This connection ensures that the closing movement is damped. Turning it clockwise will decrease the start rate and turning it anti-clockwise will increase the start rate. 3.3 Solenoid valve for air VR..L, slow opening and quick closing The VR..L closes within 1 s. No...

Flow rate 4.1 Bypass flow rate The solenoid valve for air VR is available with a bypass orifice in the valve housing on request. 50 The diameter of the bypass orifice depends on the supply pressure and air requirement. Inlet pressure pu [mbar]

 = standard  = optional Order example VR 40R01NT33D10 Description Solenoid valve for air Nominal diameter Rp internal thread Flange to ISO 7005 pu max. 150 mbar Quick opening, quick closing Slow opening, quick closing Slow opening, slow closing Mains voltage 220/240 V AC, 50/60 Hz Mains voltage 120 V AC, 50/60 Hz Mains voltage 24 V DC Terminal connection box, IP 54 Electrical connection via standard socket

Project planning information 6 Project planning information Wiring to EN 60204-1. Installation position: black solenoid actuator in the vertical upright position or tilted up to the horizontal, not upside down. The solenoid valve for air VR must not be in contact with masonry. Minimum clearance 20 mm. Do not store or install the unit in the open air. The solenoid body heats up during operation depending on ambient temperature and voltage.

7 Accessories 7.1 Position indicator will have been burnt through. The switch can then only be operated at this power rating or higher power rating. Regardless of nominal diameter, the solenoid valve for air VR can be subsequently fitted with a micro switch for the “closed” or “not closed” signal, depending on the wiring of the contact sequence. Cable gland: PG 11, on request: with socket to ISO 4400. Connection ratings: 12 – 24 V AC/DC I = 0.1 A, cos ϕ = 1, I = 0.05 A, cos ϕ = 0.6. 250 V AC I = 1 A, cos ϕ = 0.6, I = 5 A, cos ϕ = 1. If the micro switch has switched a voltage > 24 V and a...

Technical data 8 Technical data Medium: clean air. The air must be dry in all temperature conditions and must not contain condensate. Opening time: VR..N: quick opening: 0.5 s. VR..L: slow opening: 4 s. VR..R: slow opening: 4 s. Closing time: VR..N: quick closing: < 1 s. VR..L: quick closing: < 1 s. VR..R: slow closing: 4 s. Solenoid coil insulation: class F insulating material. Switching frequency: version without damping unit: any, version with damping unit: with fully operational damping unit, max. 6 switching operations per minute. Valve housing: aluminium, valve disc: Perbunan....

Technical data

Technical data Data table Type

Maintenance cycles 9 Maintenance cycles At least once per year.

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