Resilient Seated Butterfly Valve Series 3W/3L
Long-Lasting Valves for High-Cycle Applications in Sour Gas and Steam Systems
The Bray Series 3W/3L resilient seated butterfly valves feature a one-piece body with a molded-in seat to increase the products pressure rating and ability to operate in higher velocity applications. The 3W/3L offers a high-strength through stem design utilizing an internal disc to stem connection to reduce hysteresis. The Series 3W/3L is engineered to provide bidirectional bubble-tight shutoff and isolation of the line media from the stem or valve body. Available in Buna-N and EPDM elastomers as well as Nylon Coated and stainless disc materials it offers a solid platform for a variety of applications. The ISO 5211 top flange allows for easy automation to pneumatic or electric actuation for on/off or modulation applications.
Features & Benefits
A. Molded-in Seat
B. Profiled Disc
C. Robust Flange Sealing
D. End of Line Capability
E. Upper and Lower Stem Bearings
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Size Range: |
NPS 2 – 24, DN50 - DN600 |
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Temperature Range: |
-20°F to 250°F (-29°C to 121°C) |
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Maximum Allowable Operating Pressure: |
Maximum 250 psi (17.2 Bar) |
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Shutoff Rating: |
Bidirectional Bubble-tight |
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Flange Drilling: |
API 609, Category A, ASME B16.1 Class 125, ASME B16.5 Class 150, AS 2129 Table D & E, EN 1092 PN6, PN10, PN16, JIS 10K |
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Certifications: |
ABS Type Approval, CE/PED, CRN, FDA, ANSI/NSF 372, ANSI/NSF-61 |
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Body Style: |
Wafer 3W, Lug 3L |
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applications: |
Potable Water, Wastewater, Seawater, HVAC, Data Centers, Sugar & Ethanol |
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Body Materials: |
Cast Iron, Ductile Iron |
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Stem Materials: |
Stainless Steel |
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Seat Materials: |
EPDM, BUNA-N |
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Design Standard: |
API 609, Category A, EN 593, MSS SP-67 |
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Testing Standard: |
API 598, ISO 5208, EN 12266-1, MSS SP-61 |
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Face to Face: |
API 609 Category A, EN 558 Series 20 |
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Disc Materials: |
Nylon 11 Coated Ductile Iron, Stainless Steel |
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