311N Series Butterfly Valves

The 311N Series Butterfly valves are ideal for use as throttling valves. With the 10-position index plate, it is easy to repeat consistent flow conditions. Compact in design, this valve is used when space is at a premium.

PVC body
EPDM liner & O-rings
316 Stainless steel index plate & hardware
Rugged, corrosion-resistant coated metal handle
100% bubble-tight seal
Integral boot seal (flange gaskets not required)
Bolt sets include bolts, washers & nuts sized to accomodate butterfly valve & 2 PVC flanges
PVC disc with optimized strength/Cv performance
Pressure rating: 150 psi @ 70°F
Maximum temperature: 140°F

Item #	Description	Catalog Pg.	Price
Item 20638	3" PVC Butterfly Valve 319.97/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-493	319.97/Each Drop Ship
Item 20639	4" PVC Butterfly Valve 375.45/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-493	375.45/Each Drop Ship
Item 20640	6" PVC Butterfly Valve 568.04/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-493	568.04/Each Drop Ship