OVERVIEW
This Dorma MOD-DST is a heavy duty parallel hold-open arm. Its cushioned stop is for high traffic areas or potentially abusive installation conditions. Stop can be set to 85, 90, 100, and 110 degrees.
Manufacturer Resources
Product Specs
- Subcategory:
- Door Closer Parts & Accessories
- Product Group:
- Door Controls
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Closer Arms
- Commercial/Residential:
- Commercial
- Arm Reveal:
- 0" to 1-1/2"
- Parts and Accessories Type:
- Replacement Parts
- Product Attribute:
- Parts and Accessories
- Product Model:
- MOD PH
- Product Function:
- Closer Complete Arm
- Installation Category:
- Regular/Top Jamb
- Product Category:
- Door Controls
- Department:
- Door Hardware
Dormakaba MOD PH-689 – Frequently Asked Questions
1) What reveal does the Dormakaba MOD PH hold open arm cover on a regular arm installation?
The MOD PH arm handles a reveal of 0 to 1-1/2 inches. Reveal is the setback from the face of the door to the face of the frame stop where the closer shoe lands, so measure that on your opening before ordering. Past 1-1/2 inches this arm will not pull the door closed properly and you need a different arm or a drop plate to bring the mounting back into range.
2) Can the MOD PH arm be mounted parallel arm, or is it regular and top jamb only?
Regular arm and top jamb mounting. The MOD PH is not a parallel arm assembly, so if your closer body sits on the push side of the door with the arm running parallel to the face, this is the wrong arm for that opening.
3) At what degree can the hold open be set on a Dormakaba MOD PH arm?
The stop on the MOD PH can be set at 85, 90, 100, or 110 degrees. Which one you pick usually comes down to what the door hits at full swing, so set it to the shallowest angle that still clears your traffic path and keeps the door leaf off the adjacent wall or equipment.
4) Is the MOD PH arm strong enough for a high traffic entrance?
It is built for it. The arm carries a cushioned stop, which absorbs the shock of a door being thrown open rather than transferring it into the closer body and the frame. That is the reason to specify it on a heavily used opening or anywhere the door gets pushed hard, and it is a commercial grade part, not a residential one.
5) Do I still need a separate door stop if I use the MOD PH hold open arm?
The MOD PH has an integral cushioned stop that keeps the door from swinging past the set point, so on many openings it takes the place of a wall or floor stop. That said, the arm stop is taking the load every time someone flings the door, so on abused openings a lot of shops still fit a wall bumper as backup. Either way the arm itself will hold the door open and stop it at 85, 90, 100, or 110 degrees.
6) What finishes does the Dormakaba MOD PH closer arm come in?
Three: 689 anodized aluminum, 693 black, and 695 dark duranodic bronze. If you are matching a run of existing closers in a building, 689 is the common aluminum look and 695 is what pairs with bronze storefront. Pick the finish that matches the closer body already on the door, since a replacement arm in the wrong finish is obvious from across the lobby.
How fast can I get the Dormakaba MOD PH-689 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Dormakaba MOD PH-689 come with a warranty?
Absolutely. The Dormakaba MOD PH-689 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Dormakaba MOD PH-689?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Dormakaba MOD PH-689 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.