Ma-Ter Pressurestat 0.5–1.2 bar – 1/8″ BSP, 16 A (Astoria, Wega)

Ma-Ter 0.5–1.2 bar Pressurestat with 1/8″ Thread

A pressurestat switches the boiler element on and off to hold steam pressure steady. This Ma-Ter unit has the smaller 1/8″ BSP brass connection, works in a 0.5–1.2 bar window and ships preset at 1 bar. When an old switch sticks, the boiler either overheats or never reaches pressure.

Adjustable and simple to swap

The adjuster screw under the black cap lets you fine-tune the cut-out pressure once it is installed. A microswitch with spade terminals sits on the side, so the existing wiring plugs straight back on. Note the thread size: this one is 1/8″, not the more common 1/4″.

Specifications

• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Range: 0.5–1.2 bar, preset 1 bar
• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Thread: 1/8″ BSP male, brass
• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Rating: 16 A 250 V
• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Width × height: 38 × 48 mm
• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Weight: 70 g
• Ma-Ter 0.5–1.2 bar 1/8″ Pressurestat Pack: 1 pressurestat

Machines it suits

The old listing names Astoria CK, CKE, CKX and Sibilla, plus Wega Atlas, Nova, Polaris, Sphera, Vela, Venus and Orion Eco. For a 1/4″ boiler port, see the Ma-Ter XP112 0.5–1.2 bar pressurestat or the XP110 0.5–1.5 bar switch.

Mains wiring and a pressurised boiler are involved, so if in doubt let our Melbourne repair technicians fit it for you. You can also book a coffee machine repair online.