MT Valves & Fittings product. 50-mm diameter dry dial pressure gauge with BSP rear connection. Case and locking ring made of black steel, adapter sleeve, interior and connections in brass and dial and indicator needle in aluminium. The analogue Bourdon-type pressure gauge, in accordance with EN837-1, has a copper alloy tube and a glass display. It withstands an ambient temperature of -20 to 60°C, a process temperature of up to 60°C and it is recommended that the maximum pressure be less than 75% of the full range for sustained pressures and 65% for fluctuating pressures. It has a positive and dual measurement scale, units, bar/psi and an accuracy of ±1.6%. Pressure gauge 8400, suitable for both vertical and horizontal installation, is ideal for use in systems for hot and cold water, steam, oils and liquids and gases that do not affect brass. MT’s wide range of dry dial pressure gauges is specifically designed for industrial applications and complies with the highest certifications in fluid handling. Available references and published specifications: • 840002 — measures: DRY SPHERE PRESSURE GAUGE DN 50 BRASS BACK CONNECTION 1/4" 0; weight (kg): 0.13; small / large box: 1 / 60 • 840004 — measures: DRY SPHERE PRESSURE GAUGE DN 50 BRASS BACK CONNECTION 1/4" 0; weight (kg): 0.13; small / large box: 1 / 60 • 840006 — measures: DRY SPHERE PRESSURE GAUGE DN 50 BRASS BACK CONNECTION 1/4" 0; weight (kg): 0.13; small / large box: 1 / 60 • 840010 — measures: DRY SPHERE PRESSURE GAUGE DN 50 BRASS BACK CONNECTION 1/4" 0; weight (kg): 0.13; small / large box: 1 / 60 • 840016 — measures: DRY SPHERE PRESSURE GAUGE DN 50 BRASS BACK CONNECTION 1/4" 0; weight (kg): 0.13; small / large box: 1 / 60 Price and local availability on request. Source: https://mtspain.net/en/dry-sphere-pressure-gauge-dn50-brass-back-connection-1-4/