Darley
Darley Large Diameter Hose (L.D.H.)
The durable Darley L.D.H. is perfect for firefighting, offering high-pressure, abrasion, chemical, and cold resistance. Available in 4", 5", and 6" diameter up to 100’ in length. Ready to tackle any fireground challenge.
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The Darley Large Diameter Hose (L.D.H.) is a high-performance industrial hose designed for demanding environments where durability, flow capacity, and resistance to extreme conditions are critical. Engineered with a nitrile/PVC through-the-weave construction and a reinforced inner liner, this hose expands under pressure to maximize water flow while minimizing friction loss. Its ribbed nitrile rubber cover enhances abrasion resistance and reduces drag, making it ideal for industrial, municipal, and emergency response applications.
Features
- Durable Construction: Made from 100% high tenacity synthetic polyester yarn with a through-the-weave extruded PVC/Nitrile rubber for a single homogeneous build.
- Abrasion Resistant: Thin rib design withstands 10,000 cycles on the Taber Abrasion Machine without exposing the liner.
- Chemical Resistant: Withstands exposure to sea water, hydrocarbons, oils, alkalis, acids, and greases.
- Cold Resistant: Operates effectively down to -35 °F with no damage after cold flexibility testing.
- Ozone Resistant: Shows no cracking when tested to ASTM D518 Procedure B.
- High Flow Capability: Oversized inner diameter and smooth liner reduce friction loss and increase water flow.
- Lightweight & Easy to Deploy: Designed for quick deployment and compact storage.
- Heat Resistant: Maintains integrity under high temperature conditions.
- Impact & Puncture Resistant: Raised rib construction resists cuts and punctures in rugged environments.
How is it used?
The Darley LDH is typically used in high-volume water transfer operations such as firefighting, industrial washdowns, flood response, and municipal water distribution. It connects easily to standard couplings and can be laid out quickly across long distances. Its flexibility and lightweight design make it suitable for both stationary and mobile setups.
Who uses it?
This hose is trusted by fire departments, emergency response teams, industrial facilities, municipal water services, and disaster recovery crews. Its rugged design and performance capabilities make it a go-to solution for professionals who require reliable water delivery under extreme conditions.
Maintenance information
Routine inspection is recommended to check for wear, damage, or chemical exposure. After use, rinse the hose with clean water to remove debris or contaminants. Store dry and avoid prolonged exposure to direct sunlight or harsh chemicals. Periodic pressure testing ensures continued performance and safety.
Storage information
Store the hose in a cool, dry place, preferably coiled and off the ground to prevent deformation. Avoid stacking heavy objects on top of the hose. For long-term storage, ensure the hose is clean and dry to prevent mold or material degradation.
What is included?
- Darley Large Diameter Hose (L.D.H.)
- Material: 100% high tenacity synthetic polyester yarn with PVC/Nitrile rubber
- Construction: Through-the-weave, single homogeneous design
- Inner Diameter: Oversized for enhanced flow
- Coupling: Storz
- Tensile Strength: Minimum 1200 psi
- Elongation: Minimum 400%
- Abrasion Resistance: 10,000 Taber cycles (H‑22 Wheel: 0.5 kg)
- Cold Flexibility: Operates at -35 °F
- Ozone Resistance: ASTM D518 Procedure B compliant
- Chemical Resistance: Resistant to oils, acids, alkalis, greases, and sea water
- Warranty: 2-year written warranty against defects in materials and workmanship