Liquids level indicator Type 460

visualfor tanksglass

The ACI valve liquid level indicator Type 460 consists of two valves connected by a borosilicate glass tube and is designed for external mounting on tanks to indicate the liquid level according to the principle of communicating vessels. It is supplied in freely selectable lengths with threaded or flanged connections and can be fitted with an optional Plexiglas® impact protection tube to protect the glass during operation.

Key product information

• Designed for external tank mounting; indicates liquid level by the communicating vessels principle.
• Assembly: two valves connected by a transparent borosilicate glass tube; delivered unassembled to avoid damage during transport.
• Connections available: threaded (G 1/2, G 3/4) or flanged (DN 15, DN 20).
• For center distances greater than 1500 mm the tube is divided into sections and joined with spacers for stability.
• Sealing: PTFE stuffing box seal inside the valves ensures secure sealing.
• Integrated shut-off valves allow safe disconnection from the tank and emptying at the connection points for maintenance or replacement.
• Optional Plexiglas® impact protection tube protects the sensitive glass tube from mechanical impacts.

Options / selectable data from technical accordion

• Nominal sizes (DN): 15, 20
• Nominal sizes (NPS): 1/2", 3/4"
• Nominal pressure (PN): 25
• Temperature ratings available: 80°C, 130°C, 150°C, 175°C, 180°C, 200°C

Dimensions (selection from drawing table)

• Connections A: G 1/2, G 3/4, DN 15, DN 20
• L1: G 1/2 = 63 mm; G 3/4 = 96 mm; DN 15 = 85.5 mm; DN 20 = 108 mm
• L2: G 1/2 = 98 mm; G 3/4 = 98 mm; DN 15 = 98 mm; DN 20 = 98 mm
• L3: G 1/2 = 65 mm; G 3/4 = 62 mm; DN 15 = 65 mm; DN 20 = 76 mm
• LV: G 1/2 = 93.5 mm; G 3/4 = 95 mm; DN 15 = 94 mm; DN 20 = 97 mm
• LH: G 1/2 = 119 mm; G 3/4 = 122 mm; DN 15 = 119 mm; DN 20 = 122 mm
• G (thread/barrel dimension): G 1/2 = 13; G 3/4 = 16; DN 15 = 13; DN 20 = 20
• PS max (barg): G 1/2 = 25; G 3/4 = 25; DN 15 = 25; DN 20 = 20

Characteristics / technical specifications

• Brand: ACI Industriearmaturen GmbH
• Model: Type 460 (valve liquid level indicator)
• Glass: borosilicate glass tube
• Working pressure: up to max. 25 barg (see per-connection PS max values above)
• Temperature resistance: up to 200°C (selectable temperature ratings up to 200°C)
• Media: for liquid media
• Nominal sizes: 1/2" - 3/4" and DN 15 - DN 20
• Available connections: threaded or flanged
• Sealing: PTFE stuffing box seal inside the valves
• Option: Plexiglas® impact protection tube
• Delivered unassembled to avoid stress/damage to the glass; ensure precise alignment during assembly (especially for flange connections) for stress-free installation of the glass tube.