NORGREN Series 26 Solenoid Valves

Technical Dossier

Product Details And Specifications

NORGREN Series 26 Solenoid Valves: Comprehensive Module Range and Technical Overview

The NORGREN Series 26 is a family of direct-acting and pilot-operated solenoid valves engineered for precision fluid control in heavy industrial environments. Deployed across petrochemical refineries, offshore platforms, nuclear auxiliary systems, pulp and paper mills, and large-scale HVAC installations, the Series 26 has established a multi-decade installed base in applications where valve reliability directly determines process uptime. The series covers port sizes from G1/8 to G1/2, operating pressures up to 10 bar, and coil voltages spanning 24 V DC to 240 V AC, making it a cross-compatible solution for both legacy pneumatic circuits and modern electro-pneumatic control architectures.

The Evolution of Series 26 Architecture

NORGREN introduced the Series 26 platform in the late 1980s as a standardized replacement for earlier bespoke valve assemblies that required custom tooling for maintenance. The initial release focused on 2/2 and 3/2 normally-closed configurations with NBR seals suited to compressed air and inert gas service. Through the 1990s, NORGREN expanded the series to include FKM (Viton) and EPDM seal options, extending chemical compatibility to aggressive media including steam, light oils, and refrigerants.

The 2000s generation introduced the sub-base manifold mounting interface (ISO 15407-1 compliant), enabling multi-valve island assemblies without individual pipe fittings — a critical development for machine builders integrating the Series 26 into PLC-controlled pneumatic panels. Coil enclosures were upgraded to IP65 as standard, with IP67 variants available for wash-down environments. The current production generation retains full dimensional backward compatibility with first-generation Series 26 bodies, ensuring that field replacements do not require pipe rework.

As of 2024, several sub-variants within the Series 26 have been classified as mature/end-of-production by NORGREN. DriveKNMS maintains buffer stock and sourcing channels for these discontinued references to support long-term maintenance contracts.

Series 26 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked references within the NORGREN Series 26 solenoid valve family. Each entry includes a concise functional descriptor for rapid identification during maintenance planning.

2636000-0246: 3/2 NC G1/4 solenoid valve, 24 V DC, NBR seals, DIN plug coil
2636000-0248: 3/2 NC G1/4 solenoid valve, 110 V AC, NBR seals, DIN plug coil
2636000-0250: 3/2 NC G1/4 solenoid valve, 240 V AC, NBR seals, DIN plug coil
2636000-0252: 3/2 NC G1/4 solenoid valve, 24 V DC, FKM seals, DIN plug coil
2636000-0254: 3/2 NC G1/4 solenoid valve, 110 V AC, FKM seals, DIN plug coil
2636000-0260: 3/2 NO G1/4 solenoid valve, 24 V DC, NBR seals, DIN plug coil
2636000-0262: 3/2 NO G1/4 solenoid valve, 110 V AC, NBR seals, DIN plug coil
2636000-0270: 2/2 NC G1/4 solenoid valve, 24 V DC, NBR seals, panel mount coil
2636000-0272: 2/2 NC G1/4 solenoid valve, 110 V AC, NBR seals, panel mount coil
2636000-0280: 3/2 NC G3/8 solenoid valve, 24 V DC, NBR seals, DIN plug coil
2636000-0282: 3/2 NC G3/8 solenoid valve, 110 V AC, NBR seals, DIN plug coil
2636000-0290: 3/2 NC G1/2 solenoid valve, 24 V DC, NBR seals, DIN plug coil
2636000-0292: 3/2 NC G1/2 solenoid valve, 110 V AC, NBR seals, DIN plug coil
2636000-0300: 3/2 NC G1/8 solenoid valve, 24 V DC, EPDM seals, steam service
2636000-0310: 3/2 NC G1/4 solenoid valve, 24 V DC, EPDM seals, steam/hot water service
2636000-0320: 3/2 NC G1/4 solenoid valve, 24 V DC, NBR seals, sub-base manifold mount
2636000-0330: 3/2 NC G1/4 solenoid valve, 24 V DC, FKM seals, sub-base manifold mount
2636000-0340: 3/2 NC G1/4 solenoid valve, 24 V DC, NBR seals, IP67 coil enclosure

Sourcing Hard-to-Find & Obsolete Series 26 Parts

DriveKNMS operates a dedicated procurement channel for NORGREN Series 26 references that have reached end-of-production status or have been superseded by the current NORGREN V60 and V61 platform. For plant operators running legacy pneumatic systems where a full valve island replacement is not economically viable, DriveKNMS provides the following lifecycle extension services:

Buffer stock of verified-genuine Series 26 valves sourced from authorized distributor closeouts and OEM surplus. Cross-reference mapping between discontinued Series 26 part numbers and current NORGREN catalog equivalents, including dimensional and flow coefficient (Kv) comparison data. Coil-only replacement supply for cases where the valve body remains serviceable but the solenoid coil has failed — a common failure mode in high-cycle applications. Seal kit identification and supply for in-field rebuild programs, covering NBR, FKM, and EPDM variants across all port sizes in the Series 26 range.

All sourced units are subject to the DriveKNMS incoming inspection protocol before dispatch. Traceability documentation is provided on request for regulated industries.

Quality Control for the Series 26 Range

NORGREN Series 26 valves present specific inspection requirements due to their direct-acting solenoid mechanism and elastomeric seat design. DriveKNMS applies the following test procedures to all Series 26 units processed through its facility:

Coil resistance measurement against NORGREN published nominal values (tolerance ±10%) to identify degraded or rewound coils. Seat leak test at rated operating pressure using dry compressed air, with leakage measured against ISO 5208 Rate A criteria. Manual override function verification to confirm the mechanical override pin operates without binding — a common issue in valves stored in humid environments. Coil insulation resistance test at 500 V DC to screen for moisture ingress in the coil winding. Response time measurement (energize-to-open and de-energize-to-close) compared against NORGREN datasheet values to identify worn return springs or contaminated pilot orifices. Full cycle test (minimum 50 actuations) under load pressure to confirm consistent operation before dispatch.