Landon Kingsway Free Fall Fire Valves (Screwed & Flanged PN16)
1" Screwed Free Fall Fire Valve Set / Standard UK Spec
£285.00
Skip to product information
Download Technical Datasheet (PDF)
Landon Kingsway Free Fall Fire Valves (Screwed & Flanged PN16)
£285.00
UK Mainland
Trade Carriage:
Parcels ≤ 20kg:
£15.00
|
Heavy Pallet > 20kg:
£65.00
(Calculated by total weight at checkout • ex-VAT)
The Landon Kingsway Free Fall Fire Valve Set is the definitive UK standard for commercial and industrial boiler room fuel safety isolation. Engineered to isolate fuel oil lines immediately in the event of an outbreak of fire, the valve operates via a weighted drop mechanism released by an overhead fusible link wire system, providing fail-safe positive mechanical shut-off independent of mains electrical power.
Key Engineering Highlights:
- Fail-Safe Gravity Actuation: Uses a precision drop weight and quick-release catch mechanism, ensuring 100% fail-safe closure even during total power failure.
- Complete Boiler Plant Protection: Closes fuel supply lines feeding oil-fired boilers, diesel standby generators, and CHP engines to prevent fire escalation.
- Fusible Link Wire Loop: Triggered when ambient temperature exceeds fusible link ratings (standard 71°C, with options for 68°C, 93°C, and 141°C).
- Comprehensive Valve Sizing: Available in screwed BSP bodies (1/2" to 3") and flanged PN16 cast steel bodies (1" up to 3").
- Optional Position Switches: Can be fitted with auxiliary electrical microswitches to transmit valve open/closed status directly to the fire alarm panel or BMS.
Technical Specifications
| Operating Mechanism | Free-Fall Drop Weight Mechanical Trigger (Fail-Safe Gravity Shut-Off) |
| Standards & Approvals | BS 799 Part 5, BS 5410, OFTEC Compliant |
| Connection Dimensions | 1/2" to 3" Screwed BSP Female | 1" to 3" Flanged PN16 |
| Fuel Medium Compatibility | Class C2 Kerosene, Class D Gas Oil, Biodiesel, Lubricating Oils, Heavy Fuel Oils |
| Body Material | Cast Bronze / Ductile Cast Iron with Nitrile or Viton Fuel Seals |
| Release Element | Thermal Fusible Links (Standard 71°C rating; 68°C / 93°C / 141°C available) |
| Installation Position | Horizontal pipework lines with vertical drop weight path |
Standards & Building Compliance
- Mandatory under BS 799-5 (Oil burning equipment) and BS 5410 codes of practice
- Complies with commercial insurance guidelines and local fire authority regulations
- Approved for safety interlocks on standby generator fuel feeds and commercial boiler plants
- Integrates with electrical panic buttons and fire control panels via auxiliary contacts