Nickel-plated brass ball valve male/female EZFITT Smart - 3/8 to 2 inch

A ball valve in hot-forged brass, nickel-plated on its outer surfaces, male-threaded on one side and female on the other. It comes in seven diameters, from 3/8 of an inch to 2 inches.

Male on one side, female on the other: what it changes when fitting

This is the arrangement known as M/F, and it is the most common one on an existing pipe run. One end is male-threaded, the other female-threaded, both in BSPP pipe thread.

Its merit is that it drops in without adding a part : the valve screws straight into a female already in place on one side, and takes a male on the other. Where a female/female version calls for an extra nipple, this one fits on its own.

It is also the version to choose for fitting a valve at the end of a line, for instance at the outlet of a manifold or ahead of a hose. If both of your sides are male, look at the female/female version ; if both are female, the male/male version. Check before ordering : a thread cannot be converted without an extra part.

Hot-forged brass, not cast brass

The body is hot-forged, then machined. Forged brass is denser and more even than a moulded part, without the porosity that makes a valve weep after a few years in service.

The nickel plating covers the outside only. It protects against surface oxidation and makes cleaning easier ; it is neither chrome plating nor armour. The valve is turned by hand, not with a wrench.

Temperature range -10 to +120 °C : it takes domestic hot water as readily as cold water lines. The bore is standard, and the seats are flat — they call for a flat gasket, not PTFE tape.

Tightness: twin O-rings and a blow-out proof stem

Two EPDM O-rings seal the stem, where an entry-level valve carries only one. The stem is blow-out proof : even with the handle removed, line pressure cannot drive it out of the body.

Every part is tightness-tested as it leaves the factory, unit by unit and not by sampling. On a valve shut away behind a wall or under an inspection cover, that is the check that really counts.

Design, manufacture and inspection follow the European standard EN 13828, the one for ball valves carrying water intended for human consumption. The range also holds the ACS, WRAS and 4MS approvals.

A reversible handle, and traceability from a phone

The red flat handle carries the direction marking. It is reversible : turn it over to clear your hand when the valve sits close to a wall or inside a tight enclosure.

A data matrix is engraved on the handle and repeated on the label. Read with a phone, it gives the part's technical sheet, its date of manufacture, its nominal pressure and its size. On a job where an older installation is being revisited, that is what saves dismantling to identify.

The body itself is marked with the brand, the size and the nominal pressure.

Seven diameters, and how to pick the right one

The range covers 3/8, 1/2, 3/4, 1 inch, 1 inch 1/4, 1 inch 1/2 and 2 inches. These figures are thread sizes, not the outside diameter measured with a calliper : a 1/2 inch measures about 21 mm across the thread, a 3/4 inch about 27 mm.

In the French convention, that corresponds to 12x17, 15x21, 20x27, 26x34, 33x42, 40x49 and 50x60. If you are replacing an existing valve, read the size engraved on it rather than measuring : it is safer.

Mind the nominal pressure, which is not the same across the whole range : PN 32 from 3/8 to 1 inch, and PN 25 from 1 inch 1/4 upwards. Both figures sit far above the needs of a domestic water system, but the distinction matters on an installation under high pressure.

Overall length runs from 77 mm on the 3/8 to 156 mm on the 2 inches, and weight from 103 g to a little over a kilo. That is what tells you how much metal is there : these are not hollow valves.