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Dorma BTS80EMB

Floor Closer Body and Cement Case with Electro-hydraulic Hold Open

Quick Product Details

  • Floor Closer Body and Cement Case
  • With Electro-hydraulic Hold Open
  • For interior and exterior doors
  • Offset/Center-Hung
  • Heavy Duty
  • Single/Double-acting

Price: $1,443.00 /each

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This Dorma BTS80 EMB is a concealed floor closer that provides an electromagnetic hydraulic hold-open feature which will allow doors to self-close when the electrical current is interrupted, and remain functional in non-critical situations. This product is constructed for use in fire/life safety applications where a fire alarm contact electrically controls the hold-open. The closer is generally put into the hold-open position until a fire alarm condition.

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Price: $1,443.00

Choose Options

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Choose Handing:

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The handing of a door is always determined from the push side.




  • If the door swings away from you to the left, it is a Left Hand door
  • If the door swings away from you to the right, it is a Right Hand door


Choose Spindle:

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Select either Standard Spindle insert or 3° Pre Load Spindle



Suited for:
  • Interior and exterior doors

  • Meets ANSI A156.4 Grade 1 requirements
  • 25 year limited warranty

Available Options: Choose Options Above

  • Handing: info icon

    • Left hand (LH)
    • Right hand (RH)
  • Spindle: info icon

    • No Spindle
    • Spindle Insert- 5/16"clearance (74003)
    • 1/2"Clearance (74005)
    • 5/8"clearance (74007)
    • Standard 3/4"clearance (74010)
    • 13/16"clearance (74012)
    • 7/8"clearance (74015)
    • 1-1/8"clearance (74020)
    • 1-5/16"clearance (74025)
    • 1-1/2"clearance (74030)
    • 1-11/16"clearance (74035)
    • 1-7/8"clearance (74040)
    • 2-1/16"clearance (74045)
    • 2-5/16"clearance (74050)
    • Pre Load Spindle 5/16"clearance LH (80003)
    • Pre Load Spindle 5/16"clearance RH (80003)
    • Pre Load Spindle 3/4"clearance LH (80010)
    • Pre Load Spindle 3/4"clearance RH (80010)
    • Pre Load Spindle 7/8"clearance LH (80015)
    • Pre Load Spindle 7/8"clearance RH (80015)
    • Pre Load Spindle 1-1/8"clearance LH (80020)
    • Pre Load Spindle 1-1/8"clearance RH (80020)
    • Pre Load Spindle 1-5/16"clearance LH (80025)
    • Pre Load Spindle 1-5/16"clearance RH (80025)
    • Pre Load Spindle 1-1/2"clearance LH (80030)
    • Pre Load Spindle 1-1/2"clearance RH (80030)

Product at A Glance

  • Dual valves allow for adjustment of the closing-speed and latch-speed
  • Closer adjustment in the cement case provides lateral and longitudinal adjustment of 1/4”, and height adjustment of 5/32".
  • Mechanical backcheck at approximately 70º.
  • Selectable multi-point hold-open between 65º and 175º.
  • Suitable for thin slab construction
  • Fire door applications require power to be supplied through a U.L. listed fire alarm control panel.
  • When no current is applied to unit, it will act as standard hydraulic floor closer.
Style Floor Closer Body and Cement Case with Electrohydraulic Hold-Open
Application Offset/Center-Hung
Door Handing Handed
Function Single/Double-Acting
Door Weight Up to 660 lb
Door Width - Interior: 4'0"
- Exterior: 3'6"
Depth 2-3/8" - for thin slab construction
Voltage 24 VDC
Spring Size ANSI size 5

Certain applications require specific functions and features to be available on their closers. This BTS80EMB closer is designed especially for those applications that adhere to fire/life safety requirement and they have a fire alarm contact that electrically controls the hold-open. This closer will hold the door open unless the current is interrupted by the system.



Instructions & Templates

Click on the links below to download helpful instructions & templates for this product

Floor Closer Body and Cement Case with Electro-hydraulic Hold Open

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