Rolling Steel Service Doors
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Standard Features:
• Steel Slat Curtain: All slats are manufactured from the highest quality galvanized steel with a baked enamel prime finish. Available in 24 ga., 22 ga., 20 ga., or 18 ga.,. Available in Flat or Curved. (18 ga. in Curved only).
• Drum Assembly. The counter balancing mechanism is housed in this unique, roll-up assembly.
• Guides: Minimum 3/16" structural steel angle. (Roll formed guides on 24 gauge doors up to 14'0 x 14'0.)
• Bottom Bar: Two 2" x 2" x 1/8" thick structural steel angles form a rugged bottom bar assembly. A rubber bottom astragal helps to conform to floor irregularities and helps guard against weather, dirt, insects and rodents.
• Pipe Barrel: Continuous 6" minimum diameter pipe to support curtain with no more than .03" of deflection per foot of width.
• Counterbalance: Helical torsion springs are oil tempered and grease packed. Springing is accurately calculated for every door using Porvene's uniquely designed "Door Dynamometer".
• Door Stops: Stops are located on the inside and outside of the guides for added safety.
• Sealed Ball Bearings: Self-aligning and allow free rotation of barrel.
• Chain Hoist: Heavy duty #50 roller chain and sprockets combined with a smooth hand-chain provides for safe and efficient operation. Removal of chain hoist makes door Electric Operation ready without further modification or cost.
• Steel Slat Curtain: All slats are manufactured from the highest quality galvanized steel with a baked enamel prime finish. Available in 24 ga., 22 ga., 20 ga., or 18 ga.,. Available in Flat or Curved. (18 ga. in Curved only).
• Drum Assembly. The counter balancing mechanism is housed in this unique, roll-up assembly.
• Guides: Minimum 3/16" structural steel angle. (Roll formed guides on 24 gauge doors up to 14'0 x 14'0.)
• Bottom Bar: Two 2" x 2" x 1/8" thick structural steel angles form a rugged bottom bar assembly. A rubber bottom astragal helps to conform to floor irregularities and helps guard against weather, dirt, insects and rodents.
• Pipe Barrel: Continuous 6" minimum diameter pipe to support curtain with no more than .03" of deflection per foot of width.
• Counterbalance: Helical torsion springs are oil tempered and grease packed. Springing is accurately calculated for every door using Porvene's uniquely designed "Door Dynamometer".
• Door Stops: Stops are located on the inside and outside of the guides for added safety.
• Sealed Ball Bearings: Self-aligning and allow free rotation of barrel.
• Chain Hoist: Heavy duty #50 roller chain and sprockets combined with a smooth hand-chain provides for safe and efficient operation. Removal of chain hoist makes door Electric Operation ready without further modification or cost.
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About the Brand
Since 1968, the Company has been the leader in the continuous steel sheet door and has branched out into the Heavy Duty Rolling Steel Slat Door. In 1990 the Company introduced this product line with the same high standards that were used in the introduction of the continuous steel sheet door. The design and operation features of the slat door are superior within the industry and can meet the needs and requirements of most applications.
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