Galvanized Sockets

A galvanized socket is a zinc-coated cast fitting with two female-threaded ends that joins two galvanized steel pipes of the same size in a straight line. It keeps the coating continuous at the pipe joint.
Sockets have the widest size range in the galvanized family: 13 sizes from 1/4″ to 6″. They are used to join pipes in water distribution, sprinkler, irrigation and large-bore fire lines.
Main Applications
- Joining galvanized water pipes
- Large-bore fire and sprinkler mains (5″ – 6″)
- Extensions in irrigation lines
- Creating a female-threaded port at a pipe end
- Intermediate joints at tank and booster set connections
- Line repairs after maintenance
Technical Data
| Fitting type | Straight socket, two female-threaded ends of the same size |
|---|---|
| Product standard | TS EN 10242, design symbol A (manufacturer information; up to 4″) |
| Material | Malleable cast iron (depending on model) |
| Coating | Hot-dip galvanized, inside and outside |
| Coating mass | Average at least 500 g/m² (sales sheet information) |
| Thread | ISO 7-1 Rp parallel female thread |
| Sizes | 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″ (product range) |
| Large sizes | 5″, 6″ (product range; technical values depending on model) |
| 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) |
| Joint between different sizes | With a galvanized reducing socket |
| Detachable joint | With a galvanized taper seat union |
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), depending on model |
| Surface | Hot-dip zinc | Black, uncoated | Stainless, uncoated |
| Thread | ISO 7-1 Rp female thread | ISO 7-1 Rp female thread | 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 and irrigation water | Closed heating water, gas, compressed air | Corrosive media and media requiring hygiene |
Which material? Using a galvanized socket on galvanized pipe keeps the zinc protection unbroken at the joint; black sockets are preferred on black pipe.
Advantages
Coating Continuity
- Zinc protection is not interrupted at the joint
Widest Size Range
- 13 sizes from 1/4″ to 6″
Simple and Economical
- Joins two pipes with a single piece
For Large Lines
- 5″ and 6″ sizes for fire mains
Construction and Design Features
- Symmetrical body with two Rp female-threaded ends
- Zinc-coated surface inside and outside
- One-piece cast body
- TS EN 10242 design A (up to 4″)
Send the socket size and quantity; for 5″ and 6″ we will confirm stock and technical values together.
How to Choose?
- Measure the pipe sizeBoth pipes must be the same size; if not, use a reducing socket.
- Assess dismantling needsIf the joint will be opened later, prefer a taper seat union.
- Choose the surface for the mediumUse galvanized sockets on galvanized pipe and black sockets on black pipe.
- Confirm the large sizeAsk for the pressure rating of 5″ and 6″ sockets before ordering.
Complementary Products
Why ORFA?
Other Galvanized Fittings

Galvanized Wide-Radius Elbows
Galvanized wide-radius elbows are fittings that change direction with a gentle bend on threaded galvanized pipelines.
Details →
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.
Details →
Galvanized Elbows
Galvanized elbows are zinc-coated threaded fittings that change direction by 90 degrees on galvanized pipelines.
Details →
Galvanized Reducing Tees
Galvanized reducing tees are fittings used to take a smaller branch off the main run on threaded galvanized lines.
Details →
Galvanized Conical Unions
Galvanized conical unions provide a tight, removable connection on threaded galvanized pipes through a conical seat.
Details →
Galvanized Plugs and Caps
Galvanized plugs and caps are used to close the ends of threaded galvanized pipes and fittings.
Details →
Galvanized Crosses
Galvanized crosses are fittings that split flow in four directions on threaded galvanized pipelines.
Details →
Galvanized Street Elbows
Galvanized street elbows have one female and one male threaded end and change direction on galvanized lines without an extra nipple.
Details →
Galvanized Reducing Sockets
Galvanized reducing sockets are female threaded fittings that join two galvanized pipes of different sizes.
Details →
Galvanized Nipples
Galvanized nipples are short galvanized pieces with male threads on both ends, used to connect two female threaded fittings.
Details →
Galvanized Reducing Bushes
Galvanized reducing bushes are fittings with male and female threads used to change pipe size on threaded galvanized lines.
Details →
Galvanized Tees
Galvanized tees are equal-size fittings used to split flow in three directions on threaded galvanized pipelines.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.
