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Fire Trucks French type DSP Fire Hose Coupling

Fire Trucks French type DSP Fire Hose Coupling

DSP Fire Hose Coupling (Demi-Storz Pompier, for fire fighting vehicle),Countries such as Côte d'Ivoire, Senegal, Mali, Burkina Faso, Cameroon, Gabon, the Republic of the Congo, Madagascar, and Togo almost exclusively require French-style couplings for the fire trucks and sanitation vehicles they procure.

  • Market Price:

    $80
  • Product Origin:

    China
  • Lead Time:

    In stock
  • Weight:

    3 KG
  • Fire Pump:

    CB10/140
  • Pump Flow:

    140 L/S
  • Work Pressure:

    0.8 Mpa
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Fire Trucks French type DSP Fire Hose Coupling is symmetric coupling designed as French standard. The coupling is closed by turning the locking ring beneath the triangular section of the opposed DSP coupling.

 

Countries such as Côte d'Ivoire, Senegal, Mali, Burkina Faso, Cameroon, Gabon, the Republic of the Congo, Madagascar, and Togo almost exclusively require French-style couplings for the fire trucks and sanitation vehicles they procure.

 

What is the difference with DSP Guillemin and Storz?

 

Type Locking Method Gasket Features
DSP Two lugs, lock by rotating the outer ring 90° Lip-type self-sealing French standard for fire outlet
Guillemin External clamp latch Flat gasket General industrial French coupling, not fire-fighting DSP
Storz Two / three lugs rotation Flat gasket German standard, different bayonet sizes

 

Fire Trucks French type DSP Fire Hose Coupling

 

DSP Couplings — NF S61-704, Self-Sealing Symmetrical, DSP40 / DSP65 / AR100

DSP couplings are French-standard fire hose fittings conforming to NF S61-704 (delivery couplings) and NF S61-705 (suction couplings), the French national standards governing fire hose coupling design. DSP stands for Demi-raccord Symétrique à Pression — symmetrical pressure coupling half — reflecting the coupling's key design features: it is symmetrical (hermaphrodite, both halves identical) and incorporates a self-sealing valve that closes automatically when the coupling is disconnected.

» Ⅰ. DSP Fire Hose Coupling Adaptor :

Fire Trucks French type DSP Fire Hose Coupling 

Fire Trucks French type DSP Fire Hose Coupling

Fire Trucks French type DSP Fire Hose Coupling

 

DSP hose coupling for fire vehicle

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 

DSP hose coupling for fire vehicle

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 

The most popular DSP Fire Fittings:

» Ⅱ.DSP coupling install ISUZU Fire truck:

DSP hose coupling for fire vehicle

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 

DSP hose coupling for fire vehicle

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 

DSP hose coupling for fire vehicle

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 

» Ⅲ. DSP Featurers:

 

Step Operation Description
— The Self‑Sealing Advantage — No Water Loss on Disconnect What makes DSP couplings unique among fire hose coupling standards is the built‑in self‑sealing valve. Every DSP coupling half contains an internal valve that opens when two halves are connected and closes automatically when they are separated.
 
This means that a fire hose charged with water under pressure can be disconnected and reconnected without stopping the pump, without losing water from the hose, and without creating a water hammer event. No other common fire hose coupling standard — Storz, BS336, Barcelona or Gost — offers this self‑sealing capability as a standard feature.
1 Connect — valves open automatically When two DSP halves are pressed together and the locking ring rotated, the internal valves in both halves are pushed open simultaneously, allowing water to flow through the coupled connection.
2 Flow — pressure maintained through the coupling With both halves connected and locked, the coupling behaves as a standard sealed hose connection. Water flows freely at up to 16 bar working pressure. NBR face seal provides watertight connection at the coupling interface.
3 Disconnect — valves close, no water lost Rotating the locking ring and separating the two halves causes both internal valves to close before the coupling faces separate. Water remains trapped in both hose sections — no spillage, no pressure drop at the pump.
4 Reconnect — instant re‑pressurisation Reconnecting two DSP halves immediately re‑opens both valves. The hose line is instantly re‑pressurised without waiting for the pump to fill an empty hose — significantly faster than reconnecting a standard open‑bore coupling.

 

» Ⅵ.DSP vs Other Self-sealing and Delivery coupling Standards:

Standard Self-Sealing Symmetrical Sizes Max Pressure Primary Market
DSP (NF S61-704) ✅ Yes — key feature ✅ Yes DSP40 / DSP65 / AR100 16 bar France, Francophone Africa
Storz (DIN/EN) ❌ No — open bore ✅ Yes DN25–DN150 25 bar Germany, Europe, Global
Barcelona (UNE 23400) ❌ No — open bore ✅ Yes (3-lug) 1" / 1½" / 2½" 16 bar Spain, Latin America
BS336 BI ❌ No — open bore ❌ No — asymmetric M/F ¾"–3" 16 bar UK, Commonwealth
Gost (GOST 28352) ❌ No — open bore ✅ Yes (2-claw) DN50–DN150 16 bar Russia, CIS

 

 

DSP hose coupling for ISUZU fire vehicle

 

Africa ISUZU GIGA Fire Engine with French type DSP Hose Couplings 

 
DSP fire fittings for sale
 
 
 
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