Kitchen Exhaust Hinges
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Driploc STINGER 3″ VARIABLE SPEED DUCT SPINNER
$1,408.97
As low as $35.22/mo -
Super Hinge Standard Fit Hinge System
From $499.97 -
Econo Super Hinge
$151.47 -
Super Hinge Quick Fit Hinge System
From $449.97
Kitchen Exhaust Hinge Kits: Selection & Compliance Guide
Why hinges matter
Hinge kits let rooftop kitchen exhaust fans tilt open for cleaning and inspection. Correctly selected and installed, they reduce strain on wiring, protect roofing, and help keep the system inspection-ready. NFPA 96 requires upblast fans to be hinged and equipped with a weatherproof flexible electrical connection and a listed service hold-open device to permit safe service and cleaning.
Ordering a hinge kit when you install or replace an upblast fan keeps your system compliant and minimizes downtime later.
Choose your hinge kit
Standard-Duty Upblast Hinge
Best for common restaurant upblast fans with typical curb widths and moderate fan weights. Provides reliable pivoting for routine cleaning access.
- Includes fan/curb brackets and hardware
- Pair with a listed service hold-open
- Verify bowl clearance and curb structure
Heavy-Duty Upblast Hinge
Use when the fan assembly is larger, heavier, or exposed to high winds or vibration. Reinforced components improve stability when the fan is open.
- Oversized brackets and robust pivot hardware
- Greater control for heavy or tall fan assemblies
- Recommended when the fan shows movement during operation
Specialty/Adapter Hinge
For non‑standard bases, unusual curbs, or side‑discharge configurations. Adapter plates help align fasteners and spread loads.
- Match plate to fan base and bolt pattern
- Confirm an unobstructed tilt path
- Use with a listed service hold-open
Electrical Flex & Hold‑Open Accessories
Fans must tilt without straining conductors. Use weatherproof flexible cable or conduit with a generous service loop and a listed hold‑open device.
- Prevents damage to wiring during service
- Keeps the fan secured in the open position
- Supports code compliance in most jurisdictions
Measure before you buy
| What to measure | Why it matters |
|---|---|
| Fan base plate and bolt pattern | Ensures the hinge aligns without weakening the housing. |
| Curb width and clearances | Confirms the fan can tilt fully without contacting duct, roof, or parapet. |
| Approximate fan assembly weight | Guides selection between standard‑ and heavy‑duty hinges. |
| Conduit routing and slack | Prevents conductor strain when the fan is opened. |
Installation reminders
- Anchor both hinge leaves to solid structure—one to the curb, one to the fan base—using fasteners suited to the substrate.
- Install a listed service hold‑open so the fan remains secure while open.
- Provide weatherproof flexible electrical cable or conduit with a service loop to accommodate full tilt.
- Open the fan slowly on first test to confirm clearances and drain paths.
- Re‑torque fasteners after initial heat cycles and recheck during each cleaning.
Working on roofs and elevated surfaces requires proper fall protection and safe access. Follow your safety program and applicable OSHA requirements.
Maintenance tips
- Inspect hinge pins, brackets, and the hold‑open device during every scheduled hood and duct cleaning.
- Replace worn bushings or bent brackets promptly to prevent misalignment and wiring strain.
- Keep pivot points clean and clear of grease buildup.
Learn more
Need help matching a hinge kit to your fan?
Send us your fan model, curb measurements, and a few photos. Well recommend a code‑ready hinge and accessory bundle for your setup.
