NVM supply a range of Barrel Assemblies under the Bolton Brady brand.
Barrel Assemblies can be supplied as Manual or Electrical Operation.
Manual Barrel Assemblies are available to suit:
Push Up Barrels
Spring Assisted Barrels
Manual Chain Operated Barrels
Electrical Operated Barrel Assemblies are available in the following drives:
Single Phase Tubular Motor
Single & 3 Phase In-Board Motors
3 Phase Flange Motors
3 Phase Direct Drive Motors
All Barrel Assemblies are supplied complete with Dummy End & Rivnuts and where applicable, Motor.
Tubes are available in Octagonal 60mm & 70mm, Deprat, and Round Tube from 4" x 16swg to 6" 155mm & 157mm Ø
Drive Ends can be prepped with the following options:
Shaft & Discs for Direct Drives
Locking Discs for In-Line & Fire Shutter Motors
Platewheels or Drive Gears for Flange Motors
Idlers & Milled shafts to suit Support Cups for Push Up Barrels and Manual Chain Operated Barrels
NVM Offer a range of Dummy Ends to suit customers own specification
Welded Shaft & Discs to suit Bearings & Safety Brakes
Lost Bobbins with variabel Shaft
Optional Extra's are available including:
Endplates in Plain, Pre-Drilled, fitted with Support cups, or Bearings, or fitted with Shub Shaft for Chain Ops.
Inertia Safety Brakes
Chainwheels & Chain Gear
Barrel Assemblies can be supplied on a next day service for tubes up to 6000mm in length.
NVM are one of the country’s leading suppliers of Industrial Door Components, Sectional Overhead Door Components, Tube Motors and Electronic Accessories, Wicket Gates, Steel Personnel and Fire Exit Doors and bespoke manufactured Steel Doors rated to 6 hrs, and LPS rated Steel Doors to LPS Level 6.
Since it’s inception in 1966, the company has diversified into the fabrication market and boasts a manufacturing plant dedicated to the production of gates, railings and architectural street furniture, complimented by a fully equipped in house paint shop.
North Valley Metal Co. (Colne) Limited
Walverdene Works, Brook Street