Storz Coupling And Clamps Guide | Storz Accessories Collection
Table of contents
（1）A quick view of Storz couplings
（2）Consideration when selecting Storz couplings
（3）Hose clamps for Storz couplings
（4）Safety clamps for protection in Storz connection
A Quick View of Storz Couplings
Storz couplings are often used and designated as fire hose couplings. However, due to their resistance to corrosion, acids, and water, they have wide usage in many industries, including refineries, agricultural, construction, maritime safety, and military use. Storz couplings are non-shut-off symmetrical couplings known as fire hose fittings. They can be connected by plugging the lug parts and then twisting them against each other. These couplings are ideal for working with water and other fluids, while users can also use them as connecting couplings for connecting other hose types.
View Union Metal’s online selection of Storz couplings.
Consideration when selecting Storz couplings
Storz couplings are non-shut-off symmetrical couplings known as fire hose fittings. They can be connected by plugging the lug parts and then twisting them against each other. These Storz type couplings are ideal for working with water and other fluids, while users can also use them as connecting couplings for connecting other hose types. Storz couplings fitting are standard with an NBR seal; however, different seal materials are available. Replacement seals are available in NBR, NBR white, Silicone, and FPM.
(1) How to identify Storz types？
Storz lug distance. Storz couplings are easily identifiable by the lug distance. To determine the lug distance of a coupling, measure the inside distance between the lugs with a pair of calipers.
The following are the most common Storz couplings and their lug distances, commonly identified with letter designation:
-D-couplings (lug distance 31 mm)
-C-couplings (lug distance 66 mm)
-B-couplings (lug distance 89 mm)
-A-couplings (lug distance 133 mm)
(2) Union Storz couplings introduction
Union Storz fire couplings are manufactured based on German standards (DIN143), usually aluminum alloy and brass. Storz connectors are widely used in fire pipelines, fire hydrants, fire equipment, hose, and hose connections. The styles we produce include Storz tail, Storz internal thread, Storz external thread, Storz cover, and Storz reducer, which can be fast connected with the same size coupling.
(3) Advantages of Union Storz couplings
1) Aluminum Storz couplings are forged instead of cast, making them stronger and minimizing the risk of breaking.
2) Standard Storz couplings are rated for 150 – 250 Psi operating pressure. It can be higher or lower if specified with the specific coupling.
3) Available in aluminum, brass, and stainless steel.
4) Replacement seals are available in NBR, NBR white, Silicone, and FPM.
5)Storz couplings are easy to assemble and disassemble manually; a Storz wrench might be necessary if the coupling gets jammed after being pressurized.
6) All Storz couplings of the same size have the same lug distance, making them compatible.
Go and check Union Storz types:
- Storz Couplings Caps
- Storz Couplings-Hose Tail
- Storz Couplings-Male end
- Storz Couplings-Female end
- Storz Couplings DN150-3 lugs With Flange(DN150 Flange )
Union Metal has a wide variety of fittings and couplings for a wide area of uses, to learn more about different couplings and fittings, read our couplings article.
Hose clamps for Storz couplings
Storz couplings are available in a wide variety of connections and types. The most common are male or female thread, hose pillar, elbow rotatable hose pillar, flange connection, and Storz reducer.
(1) Double bolt clamps
That connection involves a wide array of Storz accessories. Double bolt clamps are one of the important accessories and are also called the Abrazadera clamp.
Double bolt Clamps are rugged general-purpose clamps made of plated iron and designed to grip the hose tightly. The inner surface has dual ridges, and the bolt lugs are reinforced to prevent bending out of alignment.
Have a look into Union double bolt hose clamp features:
-The inner surface has dual gripping ridges
-Bolts lugs are reinforced to prevent bending out of alignment
-Measure hose OD accurately before ordering clamps
-Torque values for clamps are based on dry bolts. The use of lubricant on hose clamps double bolts will adversely affect clamp performance.
Get a quote from us directly.
(2) Safety clamps for protection in Storz connection
The steel safety clamp is suitable for all Storz couplings and is equipped with a lug mechanism providing a strong grip on the coupling to keep the two halves of the coupling mechanism together.
When it comes to our most superb safety clamps, they must be Union stainless steel DIN2817 safety clamps. Union hose safety clamps are manufactured in compliance with EN 14420-3 and are used to assemble EN standardized hoses. DIN2817 safety clamps are the most secure clamps available. DIN2817 safety clamps are rated to 25 Bar in all sizes and materials.
Read DIN2817 safety clamps sizes selection.
(3) Advantages of Union safety clamps
a.The large rounded teeth inside the clamp halves securely grip the strong, tough hose cover.
b.The smooth hose tail ensures that no damage is done to the hose lining
c.Light, easy, and safe to handle
Reliable Cam and Groove manufacturer
Who is it: Union Metal, a professional Cam and Groove coupling manufacturers providing a wide variety of high-quality products.
Why choose Union Metal: Its strength, influence, reputation.
What can benefit from: Cost savings, increased productivity, reliable service.