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.
Specification / Detail
| Size Range | NPS 2 – 24, DN50 - DN600 |
| Body Materials | Cast Iron, Ductile Iron |
| Temperature Range | -20°F to 250°F (-29°C to 121°C) |
| Stem Materials | Stainless Steel |
| Maximum Allowable Operating Pressure | Maximum 250 psi (17.2 Bar) |
| Seat Materials | EPDM, BUNA-N |
| Shutoff Rating | Bidirectional Bubble-tight |
| Design Standard | API 609, Category A, EN 593, MSS SP-67 |
| 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 |
| Testing Standard | API 598, ISO 5208, EN 12266-1, MSS SP-61 |
| Certifications | ABS Type Approval, CE/PED, CRN, FDA, ANSI/NSF 372, ANSI/NSF-61 |
| Face to Face | API 609 Category A, EN 558 Series 20 |
| Body Style | Wafer 3W, Lug 3L |
| Disc Materials | Nylon 11 Coated Ductile Iron, Stainless Steel |
| Applications | Potable Water, Wastewater, Seawater, HVAC, Data Centers, Sugar & Ethanol |