Body:Cast-iron case with seamless cold headedsteel spring tube.
**Arm:**Standard: forged steel.
**Spindle:**Heat-treated steel with a crowned gear setfor increased efficiency.
**Piston:**1-3/8" diameter; precision machined,heat-treated steel.
**Springs:**Chrome silicon wire.
Seals:O rings.
**Fluid:**Standard: high lubricity extremetemperature hydraulic fluid.
Corrosion Protection:Painted protective coating on all metal surfaces for use in corrosive environments.
**Certification/Compliance
**Barrier-Free CodeCompliance:The DC6000 Series Door Closers listed below conform to the 5 lbf. maximum door opening force requirement for non-fire-rated interior hinged doors, according to:
**Americans with Disabilities Act (ADA):**Complies with the Accessibility Guidelines for Buildings and Facilities, Section 4.13.11
**ANSI/BHMA:**Meets A156.4, Grade 1. Meets A117.1.
DC6200 DC6400, DC6200 DC6400, DC6200Corbin RusswinDC6400, DC6400Corbin Russwin, DC6200 626, DC6200 605, DC6200 606, DC6200 612, DC6200 625, DC6200626, DC6200605, DC6200606, DC6200612, DC6200625
These door closers are certified by Corbin Russwin Architectural Hardware to comply with the above standards when properly installed and (if applicable) adjusted, in regular arm, parallel arm and top jamb mountings.
**UL /ULC / UL10c:**Listed for fire and cycle requirements.