Manual Override Gearbox (MOR) – Manual & Electric Operation

Manual Override – MOR (Manual + Electric Operation)

The Manual Override – MOR (Manual + Electric Operation) is an export-quality valve operating solution designed to provide reliable manual operation in combination with electric actuator control. It ensures uninterrupted valve operation during power failure, maintenance, or emergency conditions.

Manufactured by Relekon Automation, the MOR system integrates a robust manual gearbox with an electric actuator interface, allowing smooth switching between automatic (electric) and manual modes without compromising safety or performance.

This solution is ideal for critical pipeline, process, and utility applications where operational continuity is essential.

Selection Chart: Manual Override (MOR) – RA-M Series

Model	Torque (Nm)	Mech. Adv. (±10%)	Gear Ratio	Turns to Close	ISO 5211 (Valve Side)	ISO 5211 (Actuator Side)	Max Drive Bore (mm)	Handwheel (mm)	Weight (kg)
RA – M125	125	8	40 : 1	10	F05	F05	20	Ø150	3
RA – M250	250	8	33 : 1	8	F05, F07	F05, F07	22	Ø200	4.5
RA – M500	500	10	40 : 1	10	F07, F10	F07, F10	30	Ø250	6.5
RA – M700	700	10	40 : 1	10	F10, F12	F10, F12	40	Ø350	8.7
RA – M1000	1000	12	44 : 1	12	F12, F14	F12, F14	50	Ø350	13.5
RA – M1500	1500	14	48 : 1	12	F14	F12, F14	50	Ø350	18.5
RA – M2200	2200	16	55 : 1	15	F14, F16	F14, F16	65	Ø350	20.5
RA – M3500	3500	20	73 : 1	20	F16	F14, F16	80	Ø500	30.5

Technical Specifications

Parameter	Specification
Operation Type	Manual + Electric (Override System)
Rotation Angle	90° (Quarter Turn)
Gear Mechanism	Worm Gear / Worm + Spur (as required)
Manual Operation	Hand Wheel / Hand Lever
Electric Interface	Compatible with Electric Actuators
Self Locking	Yes
Mode Change	Safe & Controlled Manual Override

Torque Range

Key Features

Combined manual and electric valve operation in one system
Reliable valve operation during power failure or emergencies
Smooth and safe transition between electric and manual modes
Self-locking gearbox prevents unintended valve movement
High-strength, precision-machined components
Heavy-duty bearings-supported shaft assembly
Marine-grade and severe-duty versions available

Lubrication

Environmental Conditions

Parameter	Rating
Ambient Temperature	-20°C to +80°C
Protection	Weather-resistant coating
Corrosion Protection	Epoxy / Powder Coated (Optional)
Indoor / Outdoor Use	Suitable for both

Applications

Automated Ball Valves with Emergency Manual Operation
Butterfly Valves in Critical Pipelines
Oil & Gas Flow Control Systems
Water & Wastewater Treatment Plants
Chemical & Process Industries
Power Plants & Utilities
Infrastructure & Utility Networks

Optional Accessories

EXPORT & SUPPLY CAPABILITY

Relekon Automation supplies Manual Override (MOR) systems to customers across India, the Middle East (GCC), and European markets, supporting OEM actuator manufacturers, EPC contractors, and system integrators.

Export Highlights

Designed for high-temperature & outdoor GCC installations
Compatible with international valve & actuator standards
Export-grade packaging (wooden crates / pallets on request)
OEM branding & private labeling available
Pre-dispatch inspection & export documentation support

Certified for Quality & Global Trade

We are committed to excellence and international standards. These certifications validate our quality management and authorized trade operations.

ISO 9001:2015 Certified Officially certified by QRO for our Quality Management System. This ensures the highest standards in manufacturing and exporting standard and customized gearboxes, automation valves, and actuators.
Government Authorized Importer-Exporter (IEC) Registered with the Ministry of Commerce & Industry (DGFT), Government of India. This certification authorizes Relekon Automation to engage in seamless international import and export operations.