HMR5 series · spec 025 · Helical, valve-mount family
HMR5-025 helical rotary actuator
250 Nm driving torque at 135 bar, 90° rotation, in valve mounting flange. The HMR5-025 is 2nd of 9 sizes in the HMR5 valve-mount range, built to order for piloting and positioning duties on valve and damper linkages, where the actuator flange bolts straight to the valve body and swings the spool or lever through a fixed arc.
It sits between HMR5-012 at 125 Nm and HMR5-050 at 500 Nm.
Specifications — HMR5-025
| Rated driving torque | 250 Nm |
|---|---|
| Rated pressure | 135 bar |
| Rotation | 90° |
| Mounting | FL — Valve mounting flange (standard) |
| Output shaft | BS / SQ / KB / CU |
| Valve options | NV / CB / CS |
| Ordering pattern | HMR5-{spec}-90-{output}-{valve} |
| Example order code | HMR5-012-90-BS-CB |
HMR5 is rated at 135 bar, lower than the other HMR series because the valve-mount duty carries no external load support — the housing is not designed to take radial or bending loads from a linkage. 90° is the standard rotation on HMR5; other angles are quoted as engineered specials.
What the code means
Every HMR5 unit is specified the same way. If your tag carries a different suffix, the base size is still HMR5-025.
| HMR5 | Series — helical rotary actuator, valve-mount family, 135 bar rated |
|---|---|
| 025 | Spec size — 250 Nm driving torque class |
| 90 | Rotation — total travel in degrees |
| FL | Mounting — valve mounting flange |
| BS / SQ / KB / CU | Output — BS bolted flange shaft / SQ square shaft / KB keyed hollow shaft / CU (interface per drawing) |
| NV / CB / CS | Valve — integral valve block or plain ports |
Where HMR5-025 sits in the HMR5 range
The nearest sizes either side of HMR5-025. If your load is borderline, these are the two builds worth checking before you commit to a size. See the full HMR5 range →
Cross reference
Models customers compare with HMR5-025
These are the models that sit in the same torque class and come up in the same enquiries. They are comparable references, not validated substitutions — we confirm the mounting pattern, shaft and port details against your unit before quoting.
| Make | Model | Reference page |
|---|---|---|
| Moveco | RL16 | No page — ask us |
Comparable performance based on rated torque class for engineering comparison. The mounting interface must be confirmed by our engineering team before quotation.
What we check before quoting
On the unit
- Mounting pattern and bolt spacing
- Shaft type, spline or keyway, and length
- Port size, thread form and valve arrangement
On the machine
- Available envelope and tie-rod clearance
- Working pressure and flow at the actuator
- Rotation stops and any mechanical limits
HMR5-025 questions
What can I use in place of an HMR5-025?
We build the HMR5-025 itself to order, and where an HMR5-025 is no longer available we quote the closest HM HMR5 build and confirm the fit against your unit. We do not publish a one-to-one substitution table, because mounting pattern, shaft, port thread and valve arrangement have to match your machine, not just the torque class.
Is HMR5-025 a direct replacement for Moveco RL16?
No — we do not claim a verified drop-in for any other make. Enquiries for this torque class arrive tagged as Moveco RL16; we treat those as comparable references and compare rated torque, mounting interface, shaft and ports before quoting the HMR5-025 build that suits your machine.
How is the HMR5-025 order code put together?
The pattern is HMR5-{spec}-90-{output}-{valve}. A worked example is HMR5-012-90-BS-CB. Rotation, mount, output and valve are chosen per machine, so the code on your drawing is what we build to.
Still identifying the unit? Start with how to identify a rotary actuator or the cross-reference guide.
Send your tag and mounting drawing
We confirm the fit against HMR5-025, quote the matching build and give you a delivery date.
Request a quote for HMR5-025