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Find By Manufacturer  >  Dorma  >  Concealed Overhead Closers
RTS-88 3 105° Concealed Overhead Closer Only
RTS-88 3 105° Concealed Overhead Closer Only

Dorma - RTS-88 3 105° Concealed Overhead Closer Only



Technical Drawing

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Regular Price: $259.00
*Sale Price: $175.00 Quantity:  
*Internet only, Retail only, no further discounts available.
Product Description & Features
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4"
• Closer body is non-handed
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused by forced closing. • An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS-88 is furnished without hold open. Optional single point mechanical hold open is available at 90º or 105º.
• The RTS88 BFI and RTS 88 BFE are available in 105º NHO and 105º HO only.
• The RTS88 offers a cast-iron body along with heavy-duty ball bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• Packages are available for side load, end load, and offset slide arm applications. For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door.
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
RTS-88 3 90° Concealed Overhead Closer Only
RTS-88 3 90° Concealed Overhead Closer Only

Dorma - RTS-88 3 90° Concealed Overhead Closer Only



Technical Drawing

Choose Function:



Regular Price: $259.00
*Sale Price: $175.00 Quantity:  
*Internet only, Retail only, no further discounts available.
Product Description & Features
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4"
• Closer body is non-handed
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS-88 is furnished without hold open. Optional single point mechanical hold open is available at 90º or 105º.
• The RTS88 BFI and RTS 88 BFE are available in 105º NHO and 105º HO only.
• The RTS88 offers a cast-iron body along with heavy-duty ball bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• Packages are available for side load, end load, and offset slide arm applications. For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door.
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
RTS-88 4 105° Concealed Overhead Closer Only
RTS-88 4 105° Concealed Overhead Closer Only

Dorma - RTS-88 4 105° Concealed Overhead Closer Only



Technical Drawing

Choose Function:



Regular Price: $259.00
*Sale Price: $175.00 Quantity:  
*Internet only, Retail only, no further discounts available.
Product Description & Features
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4"
• Closer body is non-handed
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS-88 is furnished without hold open. Optional single point mechanical hold open is available at 90º or 105º.
• The RTS88 BFI and RTS 88 BFE are available in 105º NHO and 105º HO only.
• The RTS88 offers a cast-iron body along with heavy-duty ball bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• Packages are available for side load, end load, and offset slide arm applications. For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door.
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
RTS-88 4 90° Concealed Overhead Closer Only
RTS-88 4 90° Concealed Overhead Closer Only

Dorma - RTS-88 4 90° Concealed Overhead Closer Only



Technical Drawing

Choose Function:



Regular Price: $259.00
*Sale Price: $175.00 Quantity:  
*Internet only, Retail only, no further discounts available.
Product Description & Features
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4"
• Closer body is non-handed
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS-88 is furnished without hold open. Optional single point mechanical hold open is available at 90º or 105º.
• The RTS88 BFI and RTS 88 BFE are available in 105º NHO and 105º HO only.
• The RTS88 offers a cast-iron body along with heavy-duty ball bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• Packages are available for side load, end load, and offset slide arm applications. For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door.
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
RTS-88 BFE 105° Non-Hold Open LAP Concealed Overhead Closer Only
RTS-88 BFE 105° Non-Hold Open LAP Concealed Overhead Closer Only

Dorma - RTS-88 BFE 105° Non-Hold Open LAP Concealed Overhead Closer Only


Product Description & Features
• Closer ONLY, No Parts Included.
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4".
• Closer body is non-handed.
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused
by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment
valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS88 is furnished without hold open.
• The RTS88 offers a cast-iron body along with heavy-duty ball
bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site. Sold Separatly.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door. See RTS-88 Parts
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
Technical Drawing

Regular Price: $259.00
*Sale Price: $175.00   Quantity:  
RTS-88 BFE 90° Non-Hold Open LAP Concealed Overhead Closer Only
RTS-88 BFE 90° Non-Hold Open LAP Concealed Overhead Closer Only

Dorma - RTS-88 BFE 90° Non-Hold Open LAP Concealed Overhead Closer Only


Product Description & Features
• Closer ONLY, No Parts Included.
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4".
• Closer body is non-handed.
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused
by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment
valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS88 is furnished without hold open.
• The RTS88 offers a cast-iron body along with heavy-duty ball
bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site. Sold Separatly.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door. See RTS-88 Parts
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
Technical Drawing

Regular Price: $259.00
*Sale Price: $175.00   Quantity:  
RTS-88 BFI 105° Non-Hold Open LAP Concealed Overhead Closer Only
RTS-88 BFI 105° Non-Hold Open LAP Concealed Overhead Closer Only

Dorma - RTS-88 BFI 105° Non-Hold Open LAP Concealed Overhead Closer Only


Product Description & Features
• Closer ONLY, No Parts Included.
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4".
• Closer body is non-handed.
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused
by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment
valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS88 is furnished without hold open.
• The RTS88 offers a cast-iron body along with heavy-duty ball
bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site. Sold Separatly.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door. See RTS-88 Parts
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
Technical Drawing

Regular Price: $259.00
*Sale Price: $175.00   Quantity:  
RTS-88 BFI 90° Non-Hold Open LAP Concealed Overhead Closer Only
RTS-88 BFI 90° Non-Hold Open LAP Concealed Overhead Closer Only

Dorma - RTS-88 BFI 90° Non-Hold Open LAP Concealed Overhead Closer Only


Product Description & Features
• Closer ONLY, No Parts Included.
• Compact closer body is designed to fit into headers as small as 1-3/4" x 4".
• Closer body is non-handed.
• One closer for both single-acting or double-acting doors.
• Accommodates a maximum door weight of 250 lb.
• A pressure relief valve protects closer from damage caused
by forced closing.
• An integral positive stop limits door swing to 90º or 105º. An auxiliary stop should always be installed in conjunction with RTS88.
• A mechanical backcheck slows down the door prior to contact with the positive stop.
• Closing speeds are controlled by two non-critical adjustment
valves. Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
• Thermostatic valves insure constant closing speeds under varying temperatures.
• The standard RTS88 is furnished without hold open.
• The RTS88 offers a cast-iron body along with heavy-duty ball
bearings at the spindle.
• Steel cam and roller assembly is coupled to dual steel pistons.
• Mounting brackets are available to install closer into aluminum or wood headers.
• For independently hung doors with 8812 slide arm, the maximum degree of opening and hold open angle may vary slightly.
• No. 8532 steel header mounting channel is specifically designed to install the RTS series closer into open-throat steel header sections. Normally, the mounting channel is installed in the header prior to shipment to the job site. Sold Separatly.
• No. 8521E add-on spindle extension is available for special applications where additional clearance is required between the closer body and the door. See RTS-88 Parts
• Cover plates are available for virtually any type header material.
• The RTS88 is manufactured to conform with the requirements of ANSI A156.4.
Technical Drawing

Regular Price: $259.00
*Sale Price: $175.00   Quantity:  
ITS-96 1 Non-Hold Open Aluminum Concealed In Door/Header Closer
ITS-96 1 Non-Hold Open Aluminum Concealed In Door/Header Closer

Dorma - ITS-96 1 Non-Hold Open Aluminum Concealed In Door/Header Closer


Invisible hydraulic spring, completely inlaid in the door and jamb. To guarantee that the most sophisticated doors preserve their attractiveness, now they can be equipped with an inlay system - the first device of its kind which integrates itself to the door leaf and jamb with maximum elegance.

Technical Drawing

Price: $327.00   Quantity:  
8521E 1-5/16" RTS Spindle Extension
8521E 1-5/16

Dorma - 8521E 1-5/16" RTS Spindle Extension


Add-on spindle extension increases distance between closer and door by 1-5/16"

Price: $48.80   Quantity:  
8532 Steel Channel
8532 Steel Channel

Dorma - 8532 Steel Channel


Product Description & Features
• Steel header mounting channel
• Provides reinforcement required to install the RTS series closer in an open-throat header

Technical Drawing

Price: $38.20   Quantity:  
8534 With Adjustable Bottom Plate 37445
8534 With Adjustable Bottom Plate 37445

Dorma - 8534 With Adjustable Bottom Plate 37445


Top center arm with adjustable bottom plate.

Price: $53.05   Quantity:  
8563 Frame Cover Plate
8563 Frame Cover Plate

Dorma - 8563 Frame Cover Plate


Available in aluminum and dark bronze.

Choose Finish:



Price: $53.05   Quantity:  
8812 RTS Slide Arm & Track
8812 RTS Slide Arm & Track

Dorma - 8812 RTS Slide Arm & Track


Product Description & Features
• Offset slide arm and channel for aluminum, steel or wood doors
• Hung on 3/4" offset pivots or 4-1/2" wide butt
• Requires a minimum 3/4" top door rail channel depth

Technical Drawing

Price: $81.12   Quantity:  
8831 Side Load Arm for 1/2 IN. Top Rail For RTS-88
8831 Side Load Arm for 1/2 IN. Top Rail For RTS-88

Dorma - 8831 Side Load Arm for 1/2 IN. Top Rail For RTS-88


Product Description & Features
• Standard side load arm for aluminum for steel doors
• Requires a minimum 1/2" top door rail channel depth

Price: $41.40   Quantity:  
8832 Side Load Arm for Wood Doors For RTS-88
8832 Side Load Arm for Wood Doors For RTS-88

Dorma - 8832 Side Load Arm for Wood Doors For RTS-88


Product Description & Features
• Side load arm with channel for wood doors
• Requires a 5/8" mortise depth

Price: $161.25   Quantity:  
8835 End Load Arm for 1 IN. Top Rail For RTS-88
8835 End Load Arm for 1 IN. Top Rail For RTS-88

Dorma - 8835 End Load Arm for 1 IN. Top Rail For RTS-88




Price: $62.60   Quantity:  
8836 End Load Arm for 7/8 IN. Top Rail For RTS-88
8836 End Load Arm for 7/8 IN. Top Rail For RTS-88

8836 End Load Arm for 7/8 IN. Top Rail For RTS-88




Price: $62.40   Quantity:  
8836S Short End Load Arm for RTS-88
8836S Short End Load Arm for RTS-88

Dorma - 8836S Short End Load Arm for RTS-88




Price: $71.10   Quantity:  
8837 End Load Arm for 5/8 IN. Top Rail For RTS-88
8837 End Load Arm for 5/8 IN. Top Rail For RTS-88

Dorma - 8837 End Load Arm for 5/8 IN. Top Rail For RTS-88




Price: $62.60   Quantity:  
8838 End Load Arm for 3/4 IN. Top Rail For RTS-88
8838 End Load Arm for 3/4 IN. Top Rail For RTS-88

Dorma - 8838 End Load Arm for 3/4 IN. Top Rail For RTS-88




Price: $62.60   Quantity: