Butterfly Valves

Butterfly Valves

Butterfly Valves
Wafer & Lug Type

Polyester coated cast iron valves. Stainless steel stem with either Nylon 11 or stainless steel disc. Seals are EPDM. Available in lever-operated or gear drive models.

*316 stainless steel valves are available with Viton seals by special quotation

Butterfly Valves (2"-20")

Part No. Valve Size Oper. Mounting Flange Drig. Lug Bolting Data Weight (lbs/kg)
Wafer Lug BC Holes Hola Dia. BC Holes Threads
UNC-2B		 Wafer Lug
BLO2W BLO2L 2" 50 mm Lever 2.76 4 0.39 4.75 4 5/8-11 5.5 2.5 7.0 3.2
BLO25W BLO25L 2 1/2" 65 mm Lever 2.76 4 0.39 5.50 4 5/8-11 6.5 2.9 9.0 4.1
BLO3W BLO3L 3" 80 mm Lever 2.76 4 0.39 6.00 4 5/8-11 7.0 3.2 9.5 4.3
BLO4W BLO4L 4" 100 mm Lever 2.76 4 0.39 7.50 8 5/8-11 11.0 5 16.0 7.3
BLO5W BLO5L 5" 125 mm Lever 2.76 4 0.39 8.50 8 3/4-10 14.0 6.4 22.0 10
BLO6W BLO6L 6" 150 mm Lever 2.76 4 0.39 9.50 8 3/4-10 17.0 7.7 25.0 11.3
BGO6W BGO6L 6" 150 mm Gear 2.76 4 0.39 9.50 8 3/4-10 17.0 7.7 25.0 11.3
BGO8W BGO8L 8" 200 mm Gear 4.92 4 0.57 11.75 8 3/4-10 32.0 14.5 45.0 20.4
BGO10W BGO10L 10" 250 mm Gear 4.92 4 0.57 14.25 12 7/8-9 47.0 21.3 66.0 29.9
BGO12W BGO12L 12" 300 mm Gear 4.92 4 0.57 17.00 12 7/8-9 68.0 30.8 102 46.3
BGO14W BGO14L 14" 350 mm Gear 4.92 4 0.57 18.75 12 1-8 96.5 43.8 120 54.4
BGO16W BGO16L 16" 400 mm Gear 4.92 4 0.57 21.25 16 1-8 134 60.8 172 78
BGO18W BGO18L 18" 450 mm Gear 6.50 4 0.81 22.75 16 1 1/8-7 203 92.1 236 107
BGO20W BGO20L 20" 500 mm Gear 6.50 4 0.81 25.00 20 1 1/8-7 264 119 312 141

PVC & PVDF Butterfly Valves

PVC Butterfly Valve

PVC/Polypropylene Valve

This valve has a molded PVC body and a Polypropylene opening disc with an encapsulated metal insert. The disc is seated in a flexible EPDM or Viton liner that serves as the flange gasket. The shaft is made of 403 stainless steel. This valve may be used in applications up to 180°F at 75 psi.

PVDF/Viton Valve

This valve has a molded PVDF body and disc for severe applications. The liner is made of Viton and the stem is 403 stainless steel. PVDF has a useful range for many applications—from -80 to +300°F at reduced pressures. It has outstanding chemical and wear resistance, tensile and impact strength, and it surpasses other plastics in resistance to strong acids, organic solvents and halogens such as chlorine and bromine.

Part No. Description
5438 - (Size No.) PVC/Polypropylene with EPDM Liner
5439 - (Size No.) PVC/Polypropylene with Viton Liner
5442 - (Size No.) PVDF/Viton
Part No. Valve Size Oper. PSI @ 70° F
PVC PVDF
015 1 1/2" 38 mm Lever 150 150
020 2" 50 mm Lever 150 150
025 2 1/2" 65 mm Lever 150 150
030 3" 80 mm Lever 150 150
040 4" 100 mm Lever 150 150
060 6" 150 mm Lever 150 150
080 8" 200 mm Gear 150 150
100 10" 250 mm Gear 150 150
120 12" 300 mm Gear 100 100