Sanitary three-way ball valve with clamp ferrule ends for diverting or combining flow in food, dairy, beverage and pharmaceutical lines. The port pattern, L or T, must be stated when ordering.
Prices on request. Contact us for availability and quotations.
A three-way ball valve carries a drilled ball in a body with three clamp ferrule ports. The drilling decides what the valve can do: an L-port connects the inlet to one of two outlets and shuts the other, while a T-port can join two ports to the third or connect all three. The two are not interchangeable and the pattern cannot be read from the outside of an assembled valve, so it has to be stated on the order.
The ports are clamp ferrules to DIN 32676 Series A, B or C, or to the withdrawn ISO 2852. Because the clamp ring and gasket are sized on the flange diameter rather than the bore, ferrules for 25 mm, 33.7 mm and 38 mm tube share the 50.5 mm clamp and gasket. Permissible pressure follows the connection and falls with size: 25 bar for tube up to 42.4 mm outside diameter, 16 bar to 76.1 mm and 10 bar to 219.1 mm, between −10 °C and +140 °C with suitable clamps and seals.
Wetted parts are austenitic stainless steel to ISO 2604-1 as ISO 2852 requires, normally AISI 316L (1.4404), with a product-contact surface below Ra 1.0 µm. Seats are usually PTFE, which sets the temperature limit and is the part that wears. Gaskets are rubber of 75-85 IRHD chosen for compatibility with the product and the cleaning regime.
Specify the size and the clamp series, the port pattern, whether the handle is to be two-position or three-position, the body grade, and the seat and gasket materials. This is an on/off valve; it is not intended to modulate flow.
| Valve Type | Three-way, quarter-turn ball valve for diverting or combining flow; port pattern (L-port or T-port) to be specified |
|---|---|
| Connection | Clamp ferrule to DIN 32676 Series A, B or C, or ISO 2852; the series must be stated — it is not implied by the size |
| Clamp and Gasket Sizing | Sized on the flange diameter, not the bore: 34, 50.5, 64, 77.5, 91, 106, 119, 130, 155, 183 and 233.5 mm. Tube of 25, 33.7 and 38 mm all takes the 50.5 mm clamp and gasket |
| Pressure Rating (Clamp Connection) | Set by the clamp connection and falls with size: 25 bar to 42.4 mm tube OD, 16 bar to 76.1 mm, 10 bar to 219.1 mm. The clamp and the gasket determine the figure — this rates the joint only. A sanitary ball valve's body and its PTFE seat are rated below the clamp joint, so obtain the valve's own pressure rating for the size ordered before specifying |
| Temperature Range (Clamp Connection) | −10 °C to +140 °C for the clamp connection with suitable clamp and seals; the elastomer actually fitted sets the working limit |
| Wetted Material | Austenitic stainless steel selected from ISO 2604-1. Specify the grade: AISI 316L (1.4404) for wetted parts, AISI 304 (1.4301) acceptable for nuts, clamp rings and handles |
| Surface Finish | Ra < 1.0 µm on finely finished product-contact surfaces; Ra ≤ 0.8 µm is the finish usually quoted for hygienic service |
| Gasket | Natural or synthetic rubber of 75-85 IRHD to ISO 48, compatible with the product and the cleaning fluids and imparting no odour or taste. EPDM, NBR, VMQ, FKM or PTFE to be specified |
| Applicable Hygiene Standard | 3-A 68-01 Ball-Type Valves for Milk and Milk Products is the applicable class for this type of equipment. The goods are not asserted to carry the 3-A Symbol |
