DN50 to DN40 Female to male DIN 11851 butterfly valve, trigger handle

DN50 female to DN40 male DIN 11851 butterfly valve with trigger handle

Stainless steel butterfly valve with a DN50 female connection on one side and a DN40 male connection on the other, both to DIN 11851, also known as dairy coupling. In one part you can both shut off a line and step down from DN50 to DN40, for example between a tank with a DN50 outlet and DN40 hoses or pumps.

The valve has a trigger handle: squeeze the grip to release the handle and let go to lock the valve in position. Like other butterfly valves it opens and closes with a quarter turn and has little resistance when fully open.

Benefits

• Shut-off and DN50 to DN40 reducer in one part
• Trigger handle that locks the valve in position
• Opens and closes with a quarter turn
• DIN 11851 dairy coupling on both sides

Technical data

• Connection 1: DN50 female, DIN 11851 (dairy coupling)
• Connection 2: DN40 male, DIN 11851 (dairy coupling)
• Type: butterfly valve
• Handle: trigger handle
• Material: stainless steel
• Item number: AY-BUV-STRH-DN50F-DN40M

The full DIN 11851 series

Accessories

• EPDM gasket for DN50 (DIN 11851)
• EPDM gasket for DN40 (DIN 11851)
• Hook spanner for DIN 11851 dairy couplings

See all our DIN couplings and products from Brumetal.

Frequently asked questions

What is DIN 11851?
DIN 11851 is a German standard for threaded pipe couplings in the food industry, often called dairy coupling. The male side has external threads and connects to a female part with a nut and gasket.

What is a trigger handle?
A handle with a squeeze grip. Squeeze to turn the valve and let go to lock it in position.

Do I need a gasket?
Yes, DIN 11851 couplings are sealed with a gasket. EPDM gaskets for DN40 and DN50 are sold separately.