Galvanized Fittings
Galvanized fittings are threaded pipe fittings made of malleable cast iron whose inner and outer surfaces are zinc coated by hot-dip galvanizing. The zinc layer protects the cast iron body against rust in lines in contact with oxygen and fresh water.
Indoor cold water distribution, sprinkler and fire hose cabinet lines, irrigation and garden installations are the main uses of galvanized threaded fittings. 14 fitting types produced to TS EN 10242 design A are supplied from 1/4″ to 4″, and up to 6″ for sockets.
Main Applications
- Indoor cold water distribution and riser lines
- Sprinkler and fire hose cabinet installations
- Garden irrigation and outdoor water lines
- Booster set and tank outlet connections
- Connections exposed to condensate in compressed air lines
- Industrial cooling water and process water lines
- Water lines in agricultural and livestock facilities
Technical Data
| Product standard | TS EN 10242, design symbol A (manufacturer information) |
|---|---|
| Material | Malleable cast iron, EN-GJMB-350-10 (depending on model) |
| Coating | Hot-dip galvanized, inner and outer surface |
| Coating mass | Average at least 500 g/m² (~70 µm) (sales sheet information) |
| Thread standard | ISO 7-1: R taper male thread, Rp parallel female thread |
| Size range | 1/4″ – 4″; up to 6″ for sockets and 5″ for elbows (product range) |
| Reducing fittings | Up to 4″ × 3″ reducers and 3″ × 2″ reducing tees (product range) |
| Permissible pressure | 25 bar, −20 … +120 °C (EN 10242, design A) |
| Leak test | At least 5 bar air or 20 bar water (sales sheet information) |
| Union seat | Taper, metal-to-metal (taper seat union) |
| Fitting types | Elbow, 45° elbow, street elbow, tee, reducing tee, cross, socket, reducing socket, reducer, nipple, plug, taper seat union, swivel union, crossover |
| Installation | Screwed, no welding; thread sealing tape, hemp or anaerobic sealant |
Material Options
| Part | Galvanized malleable iron | Black malleable iron | Stainless steel casting |
|---|---|---|---|
| Body | Malleable iron EN-GJMB-350-10 (depending on model) | Blackheart malleable cast iron B 350-10 | Investment casting 1.4408 (AISI 316 equivalent) or 1.4308 (AISI 304 equivalent) |
| Surface | Hot-dip zinc, inside and outside | Black, uncoated | Stainless, uncoated |
| Thread | ISO 7-1 R / Rp | ISO 7-1 R / Rp | Depending on model |
| Pressure rating | 25 bar −20…120 °C (EN 10242) | 25 bar −20…120 °C, 20 bar 300 °C (EN 10242) | Depending on model |
| Suitable media | Cold domestic water, fire water, irrigation water | Closed heating water, gas, compressed air | Corrosive media and media requiring hygiene |
Which material? In lines constantly taking in fresh water the galvanized coating delays rusting of the cast iron. Black fittings are preferred in closed heating circuits, stainless fittings in chemical and food lines.
Advantages
Zinc Shield Against Corrosion
- Inner and outer surfaces are zinc coated
- Rust formation in water lines is delayed
Suitable for Fire Lines
- A common choice for sprinkler and fire hose cabinet lines
Fast Weld-Free Installation
- Screwed joints, no hot-work permit required
Wide Size Range
- From 1/4″ to 4″, up to 6″ for sockets
- 14 fitting types from a single source
Detachable Joint
- Taper seat and swivel unions allow equipment to be removed easily
Construction and Design Features
- Cast body zinc coated inside and outside in a hot-dip bath
- Body conforming to the TS EN 10242 design A pressure table
- Threads cut or cleaned after galvanizing; ISO 7-1 compliance is maintained
- Gasket-free metal-to-metal seat on taper seat unions
- Same surface and corrosion behaviour as galvanized pipe
Send the fitting type, size and quantity; we will prepare all threaded fittings for your galvanized pipeline in a single list.
How to Choose?
- Determine the mediumChoose galvanized fittings for fresh, irrigation and fire water; black fittings for closed heating and gas.
- Measure size and threadDetermine the pipe size in inches and the thread type of the equipment port (R / Rp).
- Check the pressureAssess the operating pressure against the 25 bar limit, together with temperature for hot water.
- Prepare the fitting listList the quantities of elbows, tees, sockets, nipples and unions by size.
Complementary Products
Why ORFA?
Types of Galvanized Fittings
Galvanized Wide-Radius Elbows
Galvanized wide-radius elbows are fittings that change direction with a gentle bend on threaded galvanized pipelines.
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Galvanized Crossover Bends
Galvanized crossover bends are curved fittings used to pass over another pipe on threaded galvanized lines.
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Galvanized Unions
Galvanized unions are fittings that join two threaded galvanized pipes in a way that can be taken apart again.
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Galvanized Elbows
Galvanized elbows are zinc-coated threaded fittings that change direction by 90 degrees on galvanized pipelines.
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Galvanized Reducing Tees
Galvanized reducing tees are fittings used to take a smaller branch off the main run on threaded galvanized lines.
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Galvanized Conical Unions
Galvanized conical unions provide a tight, removable connection on threaded galvanized pipes through a conical seat.
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Galvanized Plugs and Caps
Galvanized plugs and caps are used to close the ends of threaded galvanized pipes and fittings.
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Galvanized Crosses
Galvanized crosses are fittings that split flow in four directions on threaded galvanized pipelines.
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Galvanized Street Elbows
Galvanized street elbows have one female and one male threaded end and change direction on galvanized lines without an extra nipple.
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Galvanized Reducing Sockets
Galvanized reducing sockets are female threaded fittings that join two galvanized pipes of different sizes.
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Galvanized Sockets
Galvanized sockets are female threaded fittings that join two galvanized pipes of the same size in a straight line.
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Galvanized Nipples
Galvanized nipples are short galvanized pieces with male threads on both ends, used to connect two female threaded fittings.
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Galvanized Reducing Bushes
Galvanized reducing bushes are fittings with male and female threads used to change pipe size on threaded galvanized lines.
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Galvanized Tees
Galvanized tees are equal-size fittings used to split flow in three directions on threaded galvanized pipelines.
Details →Other Threaded Fittings
Threaded Black Fittings
Threaded black fittings are cast fittings such as elbows, tees, sockets and reducers that provide threaded joints in black steel pipelines.
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Stainless Steel Threaded Fittings
Stainless steel threaded fittings provide corrosion resistant threaded joints in food, chemical and process lines.
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Brass Fittings
Brass fittings are corrosion resistant threaded fittings used in water, heating and gas installations.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.