Orca Hardware 180 Degree UL Door Viewer, 9/16" Door Bore Diameter

180 degrees is a full half circle, so the Orca TH-DV180UL shows the entire face of the door plane, including a person pressed against the wall beside the frame. Narrower viewers leave a blind wedge on each side: the Rockwood 619, 620, 621 and 624 viewers are 160 degree, and the Ives 701 is 120 degree. If you want more than a half circle, the Trimco 976 and 977 and the Cal-Royal PRIULDV200 are 200 degree.

The Orca TH-DV180UL is a UL door viewer, which is what a fire rated opening requires: anything you bore through a labeled door has to be listed hardware or the label is void. Other UL or fire rated viewers ZenSupply carries include the Ives U698 wide angle at 190 degrees, the Ives U700 brass viewer, the Ives U696 at 150 degrees, and the Rockwood 621 for 2 inch to 2-1/2 inch doors.

Thick doors are the one place viewers commonly fail, because the barrel has to span the full leaf to focus. If the leaf runs 2 inches to 2-1/2 inches, the Rockwood 621 UL listed 160 degree viewer is built for that range. The Hager 1756 fire rated 185 degree viewer is listed at 2-1/8 inches. For a normal 1-3/4 inch commercial leaf, the Rockwood 620 covers 1-3/8 inch to 2 inch and the Trimco 975 covers 1-17/64 inch to 2-1/8 inch.

Three options add a cover. The Cal-Royal PRIULDV200 is a UL listed privacy door viewer with a 200 degree glass lens and a privacy cover, and its stated function is privacy, bed and bath. The Hager 1759 is a 185 degree one way viewer with a privacy flap, fitting doors 1-3/8 inch to 2-1/8 inch. The Trimco 977 adds a heavy duty cover to a 200 degree viewer for doors 1-17/64 inch to 2-1/8 inch. The Orca TH-DV180UL is a plain 180 degree viewer with no cover, so pick one of these where tenants ask for a closable lens.

The Orca TH-DV180UL is a 180 degree UL door viewer with a 9/16 inch door cross bore in satin nickel. The nearest wide-angle peers are the Ives U698, a one-way wide angle door viewer that is UL fire rated with a 190 degree view, and the Trimco 976, a 200 degree door viewer that fits doors 1-17/64 inch to 2-1/8 inch thick. The Ives U698 is the closer match on viewing angle; the Trimco 976 opens the field wider and states its door thickness range.

The Rockwood 621 is a UL listed 160 degree door viewer built for doors 2 inch to 2-1/2 inch thick, and the Hager 1756 is a 185 degree one way viewer with a fire rating for a 2-1/8 inch door. Both are sized for heavy commercial door leaves where a standard-range viewer bottoms out.

No. The Emtek 2610 is a solid brass door viewer for a 5/8 inch diameter hole, while the Orca TH-DV180UL is bored at 9/16 inch. A 5/8 inch body will not tighten in a 9/16 inch hole, and drilling a 9/16 inch bore out to 5/8 inch is a one-way change to the door. Confirm the existing hole before ordering either.

For a rated door leaf, the Ives U698 is a one-way wide angle viewer that is UL fire rated with a 190 degree view, the Ives U700 is a one-way brass viewer with a UL fire rating, the Ives U696 is a one-way viewer with a 150 degree viewing angle and a fire rating, and the Ives 701 is a one-way brass viewer for thicker doors with a 120 degree viewing angle and a fire rating. The Hager 1756 also carries a fire rating at 185 degrees. Angle is the deciding factor once the rating requirement is satisfied.

Commercial. The Orca TH-DV180UL is a commercial grade door viewer, which is the usual pick for multi-family entry doors, hotel guest rooms and any corridor door in a building where the doors are labeled. Satin nickel is the finish it comes in, so it lines up with the satin nickel or 626 hardware most apartment and office entry doors already carry.

No handing on the Orca TH-DV180UL. A viewer is a two piece barrel that threads together through a bored hole, so it does not care which way the door swings or which edge the hinges are on. The only things that decide fit are the 9/16 inch cross bore and the thickness of the leaf. That makes it straightforward to standardize one viewer across a whole building regardless of how the openings are hung.

Standardize on bore size first, not on brand. The Orca TH-DV180UL wants a 9/16 inch cross bore, and if that matches the holes already drilled in your doors it drops straight in with no redrilling across the whole fleet. Where the existing holes are 5/8 inch, the Emtek 2610 is sized for that. Second decision is whether any of those doors are labeled fire doors, since those need a UL viewer like this one or an Ives U700. Third is whether tenants want a privacy cover, which pushes you to the Cal-Royal PRIULDV200 or Hager 1759.

Viewing angle and door thickness sizing. The Orca TH-DV180UL sees 180 degrees. Rockwood splits its 160 degree viewer across three thickness ranges: the 619 for 11/16 inch to 1-1/16 inch doors, the 620 for 1-3/8 inch to 2 inch doors, and the 621 for 2 inch to 2-1/2 inch doors. A 180 degree lens takes in more of the jamb line on either side; the Rockwood range lets you match a specific leaf thickness exactly.

The Rockwood 619 is a 160 degree door viewer for doors 11/16 inch to 1-1/16 inch thick. That is the thin-leaf option in the group; the other Rockwood viewers start at 1-3/8 inch, as with the 620 for 1-3/8 inch to 2 inch doors.

The Trimco 976 and the Trimco 977 with heavy duty cover are both 200 degree viewers for doors 1-17/64 inch to 2-1/8 inch thick, and the Cal-Royal PRIULDV200 is a UL listed viewer with a 200 degree glass lens and a privacy cover. The Ives U698 sits between at 190 degrees and is UL fire rated.

Satin nickel, and that is the only finish it is built in, so there is no finish to select when ordering. On a fleet of doors already running satin chrome or brushed nickel lever trim it blends; against bright brass or oil rubbed bronze it will read as a mismatch and you would want a viewer in a matching finish instead.

Function is the same one-way view; the material and finish differ. The Orca TH-DV180UL is a 180 degree UL viewer supplied in satin nickel. The Ives U700 and Ives 701 are one-way brass viewers, both fire rated, and the Emtek 2610 is a solid brass viewer for a 5/8 inch hole. If the other trim on the opening is nickel, matching the viewer to it matters more than the body material.