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Sam Hwa Precision

Door closer, Door check, Floor hinge, Automatic close device manufacturer, Fire prevention products
Model K70 Series
Series Door Closer
Product Description

Features

ㆍ Aluminum Alloy Body
ㆍ Standard, separate and independent, latch and sweep intensity valve
ㆍ Non-handed
ㆍ Different working power by each model
ㆍ Rack-and-pinion design
ㆍ All standard arm applications allow doors to swing 180 degrees, conditions permitting.

 

Optional Features

ㆍ Built in hold-open function.
ㆍ Tri-packed

 

Colors Available

ㆍ AL : Aluminum
ㆍ BZ : Hardware Bronze (Gold)
ㆍ DU : Storefront Bronze

 

Selection Chart

MODEL CLOSER CONTROLS HOLD OPEN REMARKS
Latching Sweep STANDARD PARALLEL
70 - -  
170 (STAND) - Built-in hold open type
170P (PARALLEL) -

 

Normal Power Range Closers

Standard Installation Parallel installation W x H of Door(mm) Weight of Door(kg)
Non Hold-Open Hold-Open Non Hold-Open Hold-Open
71 171 71P 171P 800 x 1800 10-30
72 172 72P 172P 900 x 2100 25-45

 

STANDARD FEATURES

ㆍAluminum Alloy Body

Closer bodies are constructed of special aluminum alloy, carefully selected to accommodate interactive steel component and operation conditions.

ㆍRack & Pinion Operation

Provides a smooth constant control of the door through its full opening and closing cycle. 180º.door swing can be achieved when door, frame, hardware and arm function do not interfere

ㆍNon-handed

With few exceptions all NK5051 Series door closers are non-handed and can be installed on either right or left hand swing doors. Pinion shaft extends vertically through the closer body in both directions.

ㆍSweep Speed Control Valve

Allows adjustment of door speed from the door’s full open position down to approximately 10˚ from the closed position.

ㆍLatch Speed Control Valve

Allows adjustment of door speed from approximately 10˚ down to the door's fully closed position.