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Series 35/36

Resilient Seated Butterfly Valve


Size Range

NPS 22 to 120 / DN 550 to 3000

Temperature Range

-20°F to 400°F (-29°C to 204°C)

Maximum Allowable Operating Pressure

Series 35: 75 psi (5 bar)
Series 36: 150 psi (10 bar)

Shutoff Rating

Bidirectional Bubble-tight

Body Style

Full Flanged

Flange Drilling

ASME B16.1 Class 125, ASME B16.5 Class 150, ASME B16.47, EN 1092 PN 10, 16

Body Materials

Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

Stem Materials

416 Stainless Steel

Seat Materials


Disc Materials

Nylon 11 Coated Ductile Iron, Aluminum Bronze, Stainless Steel, Duplex Stainless Steel, Super Austenitic Stainless Steel, Hastelloy®, Monel


ABS, ATEX, Bureau Veritas, DNV, NSF 61/372, PED, PE(S)R, SIL

Features & Benefits

The Series 35/36 resilient seated butterfly valve provides the same robust features of the Series 32/33 valves with the addition of adjustable packing, increasing the maximum valve size offered to 120” (3000mm), and utilizing the flexible design of a fully flanged body. These valves hold to the Bray traditions of reliable performance and providing a long service life.