Ball valve with spring reset, nickel-plated brass, Rp 1/2 - Riegler 103229

Ball valve with spring reset, nickel-plated brass, operating temperature -40 °C to 170 °C, Rp 1/2, DN 15, PN max. 65 bar 2/2-way ball valves, two parts, made of nickel-plated brass with spring return. The ball valve is closed in the normal position and opens against spring force. High safety standard because the valve is automatically closed if the handle is not operated

Standards and origin

• Standard thread: ISO 7-1
• Customs tariff number: 84818081
• Country of origin: IT

About 2-way ball valves

Ball valves shut off a line with a quarter turn and give full bore when open. The range covers nominal sizes from DN 5 to DN 100 and pressure ratings from PN 12 to PN 100, with threads from G 1/4 to G 2 and Rp 1/2 to Rp 1 1/4. Alongside hand-operated versions there are pneumatically and electrically actuated variants.

What matters when choosing

• Nominal size DN 5 to 100 and pressure rating PN 12 to 100: both follow from line size and system pressure.
• Thread type: parallel G threads to DIN EN ISO 228-1 and tapered threads to ISO 7-1 or DIN EN 10226 are both represented. The standard has to match the mating part in the line.
• Actuation: besides hand levers there are pneumatic actuators in double-acting, single-acting spring-to-close and single-acting spring-to-open form, plus electric actuators for 230 V AC / 50 Hz and 24 V DC. Spring-return units move to a defined position if control air is lost.
• Body material: nickel-plated, chrome-plated or bare brass, stainless steel 1.4401 and 1.4408, aluminium and powder-coated aluminium, and the plastics PA and PA6/PC.
• Position feedback: versions are available with microswitch, with inductive switch and with inductive switch in ATEX design.

Typical applications

• Isolating compressed air lines for maintenance and modification work
• Shut-off and changeover points in water and cooling circuits
• Process lines carrying neutral gases and liquids
• Remote isolation using pneumatic or electric actuators
• Shut-off points that report their position back to the higher-level control

Threads follow DIN EN ISO 228-1, DIN EN 10226 or ISO 7-1, mounting plates follow ISO 5211. Depending on version, actuators and switches reach IP 66/67 or IP 68 to DIN EN 60529.