Norgren V51B517A-A2000 5/2 Way Pneumatic Solenoid Valve
Overview
The Norgren V51B517A-A2000 is a 5/2-way, single-solenoid, spring-return pneumatic directional control valve built on IMI Norgren’s established V50–V53 softseal spool valve platform. It is engineered for high-flow, high-cycle compressed air switching in industrial automation, offering a robust die-cast aluminium body, a G1/4 in-line port configuration, and a flow capacity of 1020 l/min at 2–8 bar operating pressure. The valve actuates on a single 22 mm industrial-standard solenoid coil and returns automatically via internal spring once the coil is de-energized, making it a dependable choice for cylinder actuation, pilot circuits, and process interlocks where fail-safe return position matters.
Seven Star LLC supplies the Norgren V51B517A-A2000 to panel builders, EPC contractors, and maintenance teams across Oman, Muscat, Sohar, Salalah, and the broader GCC as a trusted supplier of Norgren products, backed by genuine IMI Precision Engineering stock, technical datasheets, and application support for process, oil & gas, and manufacturing plants standardizing on Norgren pneumatic platforms.
Measurement and Operating Principle
The V51B517A-A2000 directs compressed air through a softseal spool mechanism housed in a die-cast aluminium alloy body with an NBR-sealed aluminium spool. When the 22 mm solenoid coil is energized, the spool shifts to route supply air from port P to working port A, exhausting port B through R1; when de-energized, an internal spring drives the spool back to its normal position, routing supply to port B and exhausting A through R2. This 5/2-way, single-solenoid, spring-return architecture of the Norgren V51B517A-A2000 gives the valve a defined, repeatable rest state without relying on a second solenoid or external pilot air, which simplifies wiring and control logic in single-acting and double-acting cylinder circuits alike.
Operating on filtered, 40-micron compressed air (lubricated or non-lubricated) between 2 and 8 bar, the valve is rated for an ambient and media temperature range of -5°C to +50°C for solenoid-actuated models, with the coil rated for continuous duty at ±10% voltage tolerance. IP65 protection with a sealed plug allows reliable operation in dusty or washdown-prone industrial environments typical of Gulf process plants.
Engineering Design
The V51 series body is precision die-cast in aluminium alloy, white-painted for corrosion resistance, with an inlet orifice sized at 0.8 mm and a solenoid coil that can be rotated in four 90° positions to suit tight panel or manifold layouts. On the Norgren V51B517A-A2000, the manual override is a push-and-turn plastic actuator that allows technicians to test or manually cycle the valve without energizing the coil — a practical feature during commissioning and troubleshooting on live pneumatic panels.
Mounting flexibility is built into the design: the V51B517A-A2000 can be installed in-line or on a sub-base manifold system for multi-station applications, and it accepts the same 22 mm industrial-standard connector plugs used across the V51–V53 range, simplifying spares management for facilities running mixed valve sizes. The spring-loaded return mechanism, combined with stainless steel internal springs, is designed for sustained high-cycle duty without drift in switching response.
Across the V50–V53 platform, Norgren offers two coil families to match panel wiring standards: a 15 mm coil terminated to EN 175301-803 Form C used on the V50 (1/8in port) frame, and the 22 mm industrial-standard coil fitted to the Norgren V51B517A-A2000 and its V52 (3/8in) and V53 (1/2in) counterparts, each available in 12VDC, 24VDC, 110/120VAC, and 220/240VAC coil voltages. Direct-current coil variants on the V51B517A-A2000 draw approximately 2W of continuous holding power, while alternating-current variants are rated at 4/2.5 VA inrush/holding on 110/120VAC and 6/5 VA inrush/holding on 220/240VAC — figures that matter directly when a panel builder is sizing a control transformer or a PLC digital output card feeding a bank of valves on the same rack. Because the coil connector standard is common across the entire V50–V53 frame range, plants standardizing on Norgren pneumatics can carry a single pool of spare coils and seal kits that fits multiple valve sizes rather than stocking size-specific electrical components for each port variant.
Key Features
The Norgren V51B517A-A2000 combines a proven softseal spool design with practical field features:
- 5/2-way, single-solenoid, spring-return directional control valve, Norgren V51B517A-A2000
- G1/4 ISO port thread with in-line or sub-base manifold mounting
- Flow capacity of 1020 l/min at 2–8 bar operating pressure
- 22 mm industrial-standard solenoid coil, rated for continuous duty at ±10% voltage tolerance
- Push-and-turn manual override for commissioning and diagnostics without power
- Die-cast aluminium alloy body with NBR/aluminium softseal spool for long service life
- IP65 protection class with sealed electrical plug for harsh industrial environments
- Solenoid coil rotates in four 90° positions for flexible panel installation
Industrial Applications
The Norgren V51B517A-A2000 is widely applied in pneumatic cylinder actuation, packaging machinery, material handling conveyors, and process interlock circuits where a defined spring-return position is required after solenoid de-energization. Its 1020 l/min flow rating and G1/4 port size make it well suited for medium-duty single and double-acting cylinder applications, pilot valve staging, and manifold-mounted multi-station control panels in manufacturing and process facilities.
Across Oman and the GCC, Seven Star LLC supplies this valve as a trusted supplier of Norgren products to oil & gas facilities, desalination plants, cement and manufacturing sites in Muscat, Sohar, and Salalah that require dependable pneumatic switching for skid-mounted equipment, actuator control panels, and automated production lines, along with technical guidance on manifold configuration and coil voltage selection for local electrical standards.
Norgren V51B517A-A2000 Technical Specifications
| Model | Norgren V51B517A-A2000 |
|---|---|
| Series | V50–V53 softseal spool valve |
| Valve Type | 5/2-way, single solenoid, spring return |
| Port Size | G1/4 (ISO) |
| Flow Rate | 1020 l/min |
| Operating Pressure | 2 – 8 bar |
| Medium | Filtered compressed air, 40 µm, lubricated or non-lubricated |
| Ambient/Media Temperature | -5°C to +50°C |
| Solenoid Coil | 22 mm industrial standard, ±10% voltage tolerance, 100% continuous duty |
| Manual Override | Push and turn to lock (plastic) |
| Protection Class | IP65 (with sealed plug) |
| Body Material | Die-cast aluminium alloy, white painted |
| Spool Material | NBR/aluminium alloy softseal |
| Mounting | In-line or sub-base manifold |
| Weight | 0.184 kg |
| Coil Connector | Industrial-standard 22 mm, 2-pole + PE (EN 175301-803 Form C on V50) |
| Power Consumption | ~2 W (DC); 4/2.5 VA inrush/hold (110/120V AC); 6/5 VA inrush/hold (220/240V AC) |
Request a Quote
Contact Seven Star LLC, your trusted Norgren supplier in Oman, for pricing, lead times, and technical support on the V51B517A-A2000 and the full V50–V53 solenoid valve range. Our team assists customers across Muscat, Sohar, Salalah, and the GCC with valve selection, coil voltage matching, and manifold system design for pneumatic control panels — and to confirm current stock of the Norgren V51B517A-A2000 for your project.
Related Products
- Datasheet Norgren V51B517A-A2000 5/2 Way Pneumatic Solenoid Valve Datasheet Download
Norgren product families on this page
Air preparation is represented by the Excelon line, here the B74G-6AK-AD1-RMN filter regulator with 3/4 inch ports. Among directional valves the page lists the V51B517A-A2000, a 5/2 way pneumatic solenoid valve, and the Herion 2636 (26360 series) solenoid valve; Herion is an older name that still appears on many nameplates in process plants. Also listed are the 85750 series, a 2/2-way solenoid valve used for shut-off duty, and the M/50 series, which in the Norgren catalog is the magnetically operated switch that mounts on a cylinder to signal piston position.Where Norgren components are used
Filter regulators condition instrument air for control valve positioners and on-off valve actuators. Solenoid valves of the Herion type pilot pneumatic actuators on shutdown and process valves in oil and gas, chemical and power plants. The V-series valves and cylinders belong to packaging machines, material handling and general factory automation, in the GCC as anywhere else.Ordering Norgren parts: what we need
Norgren part numbers are long and every character counts. In a code such as B74G-6AK-AD1-RMN the blocks set the port size and thread, the drain type, the filter element, the bowl and the regulator spring. Send the complete number, or a photo of the label. For solenoid valves add the coil voltage and frequency, the port thread, the hazardous area protection required and the ambient temperature. For cylinders give the bore, stroke and mounting style, and for cylinder switches the full M/50 code with its cable length.Browse NORGREN products by category: Solenoid Valve, Regulators, Valve Actuator.
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