Rosemount Hagan 2½×5 Thrust Power Positioner

Fits compact secondary-air and similar boiler drives that need a swivel-mounted Hagan thrust power positioner — 5-inch stroke clevis output, 500 lb stall thrust, and pneumatic or 4–20 mA inputs (PP205).

Key advantages

Type — Hagan pneumatic power positioner, 2½×5 thrust, swivel mounted (PP205)
Motion / thrust — 5-inch stroke thrust; clevis output; stall 500 lb (228 kg)
Accuracy — ±1% of full scale; hysteresis ±0.8%; positioning accuracy 1% with 3–27 psi signal
Input — 3–15, 3–27, 0–30, 0–60 psig and 4–20 mA
Dynamics — Full stroke 2 s or less; air consumption 0.5 scfm free air

Typical applications

Compact secondary-air boiler damper / register drives
Swivel-mounted thrust installs replacing legacy PP205-class positioners
Loops with wide pneumatic signal choices or 4–20 mA via I/P
Skids needing fail-safe, dual limit switches, or VeriTrim mounting options

Selection guide

Thrust budget — Stall 500 lb; max friction load 125 lb (57 kg)
Air supply — 45–120 psig; recommended 100 psig
Temperature — 0–170 °F (−17.8–77 °C)
Options — Fail-safe, I/P, dual limit switches, pivot base, VeriTrim mounting
Weight — Shipping ~9 lb class per ordering notes — compact vs floor-mounted torque units

Common mistakes

Ordering a floor-mounted torque unit (4×5 / 6×10) when a swivel thrust PP205 is specified
Exceeding 125 lb friction load while citing 500 lb stall
Leaving I/P / fail-safe / limit-switch options blank on electronic loops
Ignoring clevis / pivot-base mechanical interface details

When to RFQ / what to tell us

Required thrust/friction, stroke, and available air pressure
Input signal (3–15 / 3–27 / 0–30 / 0–60 psig vs 4–20 mA) and options
Quantity, ship-to, mounting (swivel / pivot / VeriTrim) notes

Request a Quote · Get selection help

Specs

Spec	Value
SKU	42103
Brand	Rosemount
Model	2 1/2x5 Thrust Type Power Positioner (PP205)
Product type	pneumaticpowerpositioner
Positioner type	Hagan pneumatic power positioner, 2½×5 thrust, swivel mounted
Output motion	5-inch stroke thrust; clevis output
Stall thrust	500 lb (228 kg)
Max friction load	125 lb (57 kg)
Accuracy	±1% FS; hysteresis ±0.8%; positioning 1% with 3–27 psi signal
Full stroke time	2 sec or less
Input signal	3–15, 3–27, 0–30, 0–60 psig and 4–20 mA
Air supply	45–120 psig; recommended 100 psig
Air consumption	0.5 scfm free air
Temperature limit	0–170 °F (−17.8–77 °C)
Unit weight	Shipping ~9 lb (ordering note)
Options	Fail-safe, I/P, dual limit switches, pivot base, VeriTrim mounting

Documents

FAQ

Q: Thrust or torque unit? A: Thrust type — 5-inch clevis stroke, 500 lb stall; not a floor-mounted torque shaft unit.

Q: Which pneumatic signals? A: 3–15, 3–27, 0–30, 0–60 psig plus 4–20 mA per OEM data.

Q: What should I send for a quote? A: Thrust/friction, air supply, input/options, quantity, ship-to. Compatible with systems using Rosemount Hagan PP205 — we do not claim authorized-dealer status.

Parameter	Value
Accuracy	±1% of full scale; hysteresis ±0.8%; positioning accuracy 1% with 3–27 psi signal
Positioner Type	Hagan pneumatic power positioner, 2½×5 thrust type, swivel mounted (PP205)
Output Motion	5-inch stroke thrust; clevis output
Stall Thrust	500 lbs (228 kg)
Max Friction Load	125 lbs (57 kg)
Full Stroke Time	2 sec or less
Input Signal	3–15, 3–27, 0–30, 0–60 psig and 4–20 mA
Air Supply	45–120 psig; recommended 100 psig
Air Consumption	0.5 scfm free air
Temperature Limit	0–170°F (−17.8–77°C)
Unit Weight	Shipping ~9 lb (per ordering; compact secondary-air boiler applications)
Options	Fail-safe, I/P, dual limit switches, pivot base, VeriTrim mounting