Angle seat valve, Piston drive, NC, Bronze, G 3/4 - Riegler 133198

Angle seat valve, Piston drive without NAMUR interface, Bronze, Medium temp. -10°C to 180°C, G 3/4, Pressure difference max 10 bar Angle-seat valves with external pilot control and a self-aligning valve disc for neutral (bronze body) or corrosive (stainless steel body) media. Very high flow due to angled seat designWater hammer prevented by fluid entry under the discSuitable for vacuum operation (low vacuum)

Standards and origin

• Customs tariff number: 84818079
• Country of origin: IT

About Angle-seat valves

An angle seat valve shuts off and opens media lines through a pneumatic piston drive, with the disc set at an angle to the flow. The product text credits that geometry with excellent flow figures, because the flow path stays largely straight. The group runs from G 1/2 to G 2 female and works at medium temperatures from -10 °C to 180 °C.

What matters when choosing

• Thread: G 1/2, G 3/4, G 1, G 1 1/4, G 1 1/2 or G 2 female. Port size governs the flow that is available.
• Housing: bronze for neutral media, stainless steel AISI 316 for aggressive media. This choice decides the media resistance.
• Function: every valve in the group is NC, so it closes when no control pressure is applied.
• Operating pressure differential: the sample items state 10 to 16 bar depending on port size. The permitted figure falls as the nominal bore grows.
• Sealant: PTFE, which carries the medium temperature up to 180 °C.

Typical applications

• Steam lines in process plant, since medium temperature reaches 180 °C
• Hot water and cleaning circuits in plant engineering
• Shutting off aggressive media in the stainless steel AISI 316 housing version
• Automated filling and dosing stations under pneumatic control
• Cooling water circuits on furnaces, moulds and tooling

Sealing is with PTFE, the housing is available in bronze and in stainless steel AISI 316. The 14 items come from Italian production.