Bray – Resilient Seated Butterfly Valve – Series 35/36
Butterfly Valves
Bray - Resilient Seated Butterfly Valve - Series 35/36

Certified and Tested for Superior Performance

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.

Size RangeNPS 22 to 120 / DN 550 to 3000
Body MaterialsCast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Temperature Range-20°F to 400°F (-29°C to 204°C)
Stem Materials416 Stainless Steel
Maximum Allowable Operating PressureSeries 35: 75 psi (5 bar)
Series 36: 150 psi (10 bar)Series 33: 150 psi (10 Bar)
Seat MaterialsEPDM, BUNA, and FKM
Shutoff RatingBidirectional Bubble-tight
Disc MaterialsNylon 11 Coated Ductile Iron, Aluminum Bronze, Stainless Steel, Duplex Stainless Steel, Super Austenitic Stainless Steel, Hastelloy®, Monel
Body StyleFull Flanged
Flange DrillingASME B16.1 Class 125, ASME B16.5 Class 150, ASME B16.47, EN 1092 PN 10, 16
Testing StandardMSS SP-61, API 598, EN 12266-1
CertificationsABS, ATEX, Bureau Veritas, DNV, NSF 61/372, PED, PE(S)R, SIL
Face to FaceAPI 609 Category A, EN 558 Series 20
ApplicationsWater, Wastewater, Seawater, other liquids and gases