Products Composite Autoclaves Vacuum Pressure Impregnation (VPI) Autoclaves Glass Laminating Autoclaves Vulcanizers Sterilizers Concrete Curing Autoclaves Dewaxing Autoclaves Harris Quick Opening Doors Field Services & Engineering Pre-Owned AutoclavesMADE IN USA

Harris Quick Opening Doors

(click on thumbnail to enlarge)

Harris Quick Opening Doors
Harris Quick Opening Doors

The Harris Quick Opening Door, a proprietary design from Melco Steel, Inc., is commonly used in different types of autoclave systems. Originally developed and patented by Harris Products in the 1950's, its rights were later transferred to Melco Steel, Inc. Over the years, the design of our breech, lock-type doors have been enhanced and refined to offer safe and reliable autoclave operations.

While the other types of closures actually rotate the door against the seal/o-ring, the Harris design operates by rotating the locking ring a few degrees to expose the door lugs through cut out areas of the lock ring. Their unique design does not produce any relative motion between the door and the pressure sealing o-ring, eliminating early fatigue and the need for replacement. The door is then simply pivoted 90° to allow full access to the interiors.

The lock ring and door swing operations of our Harris doors are typically hydraulic and always interlocked to prevent operation under high-pressures. They also come with door safety interlock devices, such as mechanical, hydraulic, pneumatic and electrical interlocks to prevent inadvertent opening of the door under pressure. The safety features comply with stringent ASME requirements.

(click on thumbnail to enlarge)

SS Wetted Harris Quick Opening Door
SS Wetted Harris Quick Opening Door
48 Harris Quick Opening Door
48 Harris Quick Opening Door

PDFHarris Quick Opening Doors Brochure (PDF - 602KB)

Request Quote

Harris Quick Opening Doors Specifications


Design Pressure Up to 3000 psig
Diameter Up to 18 ft
Door Materials Carbon Steel
SS Wetted
Stainless Steel
Orientation Horizontal
Pressurizing Medium
Door Seal Materials
Buna N
Door Operation (Locking Ring and Door Swing) Hydraulic
Optional Equipment Hydraulic Power Unit
Manual Hydraulic Directional Control Valves


Analysis of Equipment
Design and Engineering
Non-Destructive Field Testing
Training for New Systems
Support Services Complete Turnkey Installation
Freight On Board (FOB) Factory Services
On Site Start-Up/Operation/Maintenance Training

Get Adobe Reader

Back to top

Site created by ThomasNet Web Solutions       Copyright © 2012 Melco Steel, Inc., All Rights ReservedDesigners • Engineers • Fabricators
Melco Steel, Inc. | Autoclave Process System | Designers • Engineers • Fabricators