Storz Coupling
Storz Coupling is a symmetrical bayonet fitting — both halves are identical, so there is no male or female side. A quarter-turn locks the connection, making it the standard coupling for fire fighting equipment across Europe and many municipal systems worldwide.
📋 Technical Specifications & Core Value
Material: Aluminum, Brass, or Stainless Steel
Sizes: 25mm to 150mm (1" to 6")
Working pressure: 16 bar
Connection: Symmetric bayonet (no male/female)
Seal: Flat face with rubber gasket
🛠️ Compatible Coupling & Fitting Options
Storz with Lever Lock: Quarter-turn lever provides positive locking engagement. Self-sealing gasket compresses on connection for drip-free operation.
Storz with Threaded Connection: BSPP or NPT threaded inlet for permanent pipe installation. Available in aluminum, brass, or stainless steel.
Storz Blank Cap and Plug: Blank caps seal open couplings when not in use. Plugs insert into female Storz connections to prevent contamination.
💎 Key Value Highlights
Symmetrical design — any two couplings connect, eliminating male/female mismatch
Quarter-turn bayonet lock — fastest coupling mechanism available
Flat-face seal minimizes water loss during connection
Quality Assurance: Available in aluminum, brass, and SS316 to match the chemical environment. Aluminum for general fire service, brass for fuel-handling safety, and SS316 for marine and chemical plant use. Each coupling is tested to 1.5x working pressure and verified for bayonet engagement smoothness.
Customization & OEM Service
ShengYa supplies Storz Coupling to distributors, hose assemblers and OEM equipment builders worldwide. We support full customization on every order:
- Size & specification: non-standard bore, wall thickness, length or pressure rating built to your drawing or sample.
- Material & construction: compound, cover colour, reinforcement and helix options selected to match the conveyed medium.
- Branding: printed or embossed logo, part number and barcode, plus private-label packaging.
- Assembly: cut lengths, fitted couplings, clamps and pre-assembled hose sets ready to install.
- Documentation: material certificate, dimensional and pressure-test reports supplied on request.
Typical MOQ is 500 m (or 500 pcs for fittings) per size for customized production and lower for stocked items. Standard lead time is 15–25 days, and samples are available for evaluation before bulk order.
Frequently Asked Questions
What sizes do Storz couplings come in and are they interchangeable between brands?
Storz couplings are sized by the lug distance (commonly 25 to 110 mm, often written as D, C, B and A). Couplings of the same Storz size from different manufacturers will mate, which is why they remain the standard for fire and water transfer hose. We supply the full range with hose tail, threaded or flanged ends.
What is your minimum order quantity?
For stocked specifications the MOQ is typically 100 m (or 100 pcs for fittings) per size. For customized production the usual MOQ is 500 m or 500 pcs per size, depending on material and tooling.
Can you produce to my own specification or brand?
Yes. We regularly produce to customer drawings and samples, including non-standard sizes, compounds and cover colours, and we can print or emboss your logo and supply private-label packaging.
What is the lead time, and can I get samples first?
Stocked items normally ship in 7–15 days and customized production in 15–25 days. Samples are available so you can test the product in your application before placing a bulk order.