Optional Features
ㆍ Delayed action
ㆍ Hold open
ㆍ Molded cover
ㆍ Back check
COMPLIANCE STANDARD
ㆍ ANSI/BHMA A156.4, Grade1 certified
ㆍ UL listed
ㆍ ADA compliant (BF-4)
Normal Fixed/Adjustable Sized Closers
| Standard Installation | W x H of Door (mm) | Weight of Door (kg) | Body Size (mm) |
| NSK820 | 800 x 2100 | 25 – 45 | 46 x 204 x 70 |
| NSK830 | 950 x 2100 | 40 – 65 | 46.3 x 226 x 70.3 |
| NSK840 | 1050 x 2400 | 60 – 85 | 46.3 x 226 x 70.3 |
| NSK850 | 1200 x 2400 | 80 - 120 |
| NSK800 | Adjustable power : size BF - 4 or 1 - 6 |
Cross Reference
| Company | CAL ROYAL | DORMA | DOR-O-MATIC | HAGER | K2 | LCN | NORTON | PDQ | SARGENT |
| Model | 300 | 7400 | SC60 | 5300 | QDC300 | 1260 | 1600 | 3100 | 1130 |
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. 180˚.door swing can be achieved when door, frame, hardware and arm function do not interfere
ㆍNon-handed
With few exceptions all NSK800 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.
ㆍCompliance Standards
ANSI/BHMA A156.4, Grade1 certified.
UL listed.
ㆍTri-Packed
NSK800 Series come with screws, brackets and soffit plates to allow for regular, top jamb, and parallel arm installations
ㆍAdjustable Back-check Valve
Provides control of the door in the opening cycle, beginning at approximately 75˚ of door opening. it cushions the door opening when the door is forcibly opened beyond its pre-adjusted limits.
ㆍMulti-Sized Door Closer
Adjustable through the power range of sizes BF – 4 / 1 - 6.
NSK800BF (BF-4) also confirms to the BF opening force requirements of the A.D.A and ANSI/BHMA standard A117.1 for interior doors.
CERTIFICATION
ㆍ ANSI/BMHA A156.4 , Grade 1 certified
ㆍ UL /cUL listed
ㆍ UL10C listed for positive pressure fire test
ㆍ NSK800BF (BF-4) model is designed to comply with requirements for the Americans with Disability Act (A.D.A) and ANSI standard A117.1
