Norgren Herion 2636 Series Solenoid Valve
Overview
The Norgren Herion 2636 series is a family of 4/2, 5/2 and 5/3 soft-seal solenoid-operated directional control valves built on the proven Herion poppet-valve platform, one of the most widely specified pilot and actuator-control valve designs in general industrial pneumatics. The valve uses a simplified soft-seal system with Herion’s T-Seal to give reliable switching with low maintenance across port sizes from 1/8″ to 1/2″ NPT, and it is available in air-return, spring-return and double-solenoid impulse configurations to suit single-acting and double-acting pneumatic actuators alike. An integrated pilot-valve silencer reduces exhaust noise at the point of switching, which matters on plant floors and control panels where multiple valves cycle continuously through a shift.
As the official authorized partner and exclusive regional representative for Norgren, Seven Star LLC proudly supplies the Herion 2636 solenoid valve range to industrial facilities, process plants and OEM panel builders across Oman and the wider GCC. Refineries, water treatment plants and manufacturing lines in Muscat, Sohar and Salalah rely on dependable pneumatic actuator control, and the Herion 2636’s compact construction, quick-change solenoid design and manifold-mounting options make it a practical specification wherever an engineer needs a proven, serviceable valve rather than an unfamiliar low-cost substitute.
Operating Principle
The Norgren Herion 2636 valve is a solenoid-piloted spool/poppet valve: a small pilot solenoid shifts an internal pilot poppet, which in turn redirects supply air pressure to move the main valve spool between its switching positions. In air-return and spring-return variants, a single solenoid drives the valve to its actuated position and either the incoming air supply or an internal spring returns it to the normal position when the coil is de-energized; the double-solenoid impulse variant uses two independently energized pilots to hold the valve in either position without continuous power, which is the preferred configuration where a process must retain its last commanded state through a momentary power interruption.
Soft-seal construction with the Herion T-Seal reduces internal friction and wear at the spool-to-body interface compared with metal-to-metal poppet designs, translating into longer service life and more consistent switching times as the valve accumulates cycles. The practical consequences for a maintenance engineer are straightforward: quick-change solenoid coils that can be swapped without removing the valve body from its piping or manifold, a standard manual override for commissioning and troubleshooting without live electrical actuation, and an integrated silencer that keeps exhaust noise from becoming a nuisance on densely packed control panels.
Engineering Design of the Norgren Herion 2636
The Norgren Herion 2636 body is manufactured from clear anodized aluminum with BUNA-N seals as standard, with polyurethane seal options and hazardous-duty explosion-proof solenoid variants available with UL, CSA and CENELEC listings for use in classified areas. Port sizes span 1/8″, 1/4″, 3/8″ and 1/2″ NPT (with ISO 228/1 “G” thread ports also available), covering Cv factors from roughly 1.4 to 3.5 depending on port size and configuration, and operating pressure ranges from as low as 25 psi up to 150 psi across the family.
Electrical connection options include standard cable-clamp connectors, 1/2″ NPT conduit connectors and lighted connector variants, with coil classifications up to insulation Class H for hazardous-location service in Class I Division 1/2 and Class II Division 1/2 environments as defined by the National Electric Code. Manifold-mounting kits and external pilot adapters extend the valve into multi-station configurations for panel builders consolidating several actuator circuits onto a single air supply, and factory-supplied repair and service kits keep long-service installations maintainable without full valve replacement.
Key Features
The Norgren Herion 2636 solenoid valve combines several practical advantages that suit demanding pneumatic control duty in the GCC industrial environment.
- Integrated pilot-valve silencer reduces switching noise on densely packed control panels and plant floors.
- Soft-seal construction with Herion’s T-Seal delivers high flow performance with low internal friction and extended service life.
- Quick-change solenoid coils allow field replacement without disturbing the valve body or piping connections.
- Manual override is standard on most models, allowing commissioning and troubleshooting without energizing the coil.
- Compact construction supports manifold mounting for consolidating multiple valve stations on a single air supply.
- Configurations include air return, spring return and double-solenoid impulse to match single- or double-acting actuators.
- Hazardous-duty explosion-proof solenoid options with UL, CSA and CENELEC listings are available for classified areas.
- Port sizes from 1/8″ to 1/2″ NPT and Cv factors up to 3.5 cover a wide span of pneumatic actuator sizing.
Industrial Applications
The Norgren Herion 2636 solenoid valve is specified wherever pneumatic actuators need reliable, repeatable directional control: quarter-turn ball and butterfly valve actuation on process piping, pneumatic cylinder control on packaging and material-handling lines, and pilot control for larger process actuators in oil and gas, water treatment and general manufacturing plant. In Oman, the valve family is well suited to refinery and petrochemical facilities, desalination and water treatment plants along the coast, and general industrial manufacturing operations where dependable actuator switching under continuous duty cycles is a baseline requirement rather than a luxury.
As the officially authorized partner for Norgren, Seven Star LLC distributes the Herion 2636 solenoid valve range to EPC contractors, panel builders and plant maintenance teams throughout Oman and the GCC, including facilities in the Sohar and Salalah economic zones where pneumatic actuator control supports process automation across refining, chemical and logistics operations. Because the valve is available with hazardous-duty solenoid options, it is also a practical specification for classified areas within petrochemical and oil and gas processing plant where explosion-proof performance is a project requirement.
Technical Specifications
Key technical parameters for the Norgren Herion 2636 series solenoid valve – the Norgren Herion 2636 is a proven workhorse across regional plant – are summarized below; consult the manufacturer datasheet for the full ordering matrix.
| Parameter | Specification |
|---|---|
| Model | Norgren Herion 2636 Series (4/2, 5/2, 5/3 soft-seal solenoid valve) |
| Port Sizes | 1/8″, 1/4″, 3/8″, 1/2″ NPT (G-thread available) |
| Cv Factor | 1.4 – 3.5 depending on port size |
| Operating Pressure | 25 – 150 psi |
| Fluid | Filtered air, lubricated or non-lubricated |
| Fluid / Ambient Temperature | 15°F to 140°F |
| Body Material | Clear anodized aluminum |
| Seal Material | BUNA-N standard; polyurethane optional |
| Configurations | Air return, spring return, double-solenoid impulse |
| Coil Insulation | Class H |
| Hazardous Duty | Explosion-proof solenoid options, UL/CSA/CENELEC listed |
| Mounting | In-line or manifold mounting with external pilot adapter option |
Request a Quote for Norgren Herion 2636 Series Solenoid Valve
The Norgren Herion 2636 continues to be specified across GCC pneumatic control panels for its reliability. Seven Star LLC supports formal RFQ submissions, regional warehouse stock, and technical datasheet downloads for the full Norgren Herion 2636 solenoid valve range. As the authorized partner for Norgren in Oman and the GCC, our instrumentation division can advise on port sizing, coil voltage and hazardous-area certification for pneumatic actuator control projects across Muscat, Sohar, Salalah and the wider region. Contact Seven Star LLC to request a formal quotation or arrange technical consultation.
Related Products
NORGREN is a globally trusted brand in motion and fluid control technologies, specializing in high-performance pneumatic and automation components. With decades of experience, the company designs innovative products that improve efficiency, reliability, and safety in industrial systems.
Its wide product range includes solenoid valves, actuators, air preparation units, and control systems used across manufacturing, process, and transportation industries. NORGREN’s solutions are known for precision engineering, durability, and compliance with strict international standards for performance and safety.
Seven Star LLC supplies genuine NORGREN valves, actuators, and pneumatic control products to clients across the Middle East, ensuring dependable automation solutions backed by global expertise and technical support.
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