Content. Butterfly Valves Aplications Way and 3-Way... 9 Serie Serie 41 high performance... 9 Serie 30/31 Wafer/Lug...

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1 Content Butterfly Valves... 2 Aplications Way and 3-Way... 9 Serie Serie 41 high performance... 9 Serie 30/31 Wafer/Lug Monclova, Coahuila

2 Butterfly Valves The butterfly valve is ¼ turn and controls the flow through a circular disc, with the axis of the hole at right angles to the direction of traffic. Recommended for: Service with fully open or fully closed. Service with strangulation. To drive frequently. When cutting is required positive for gases or liquids. When only allowed a minimum of fluid trapped in the pipe. For low pressure ciated through the valve Aplications General service, liquids, gases, semi-liquid pastes, liquids with suspended solids. Advantaje Lightweight, compact, low cost. Requires little maintenance. Minimum number of moving parts. No balls or cavities. High capacity. Circulation straight. It cleans itself. Disadvantajes High torque (torque) to operate it. Limited ability to pressure drop. Prone to cavitation. Variations Hard-up, enhanced disc, flanged, screwed, fully jacketed, high performance. Monclova, Coahuila

3 Materials Body: iron, ductile iron, carbon steel, forged steel, stainless steels, alloy 20, bronze, Monel. Disc: all metals, elastomers such as TFE coatings, Kynar, Buna-N, Neoprene, Hypalon. Seat: Buna-N, Viton, neoprene, rubber, butyl, polyurethane, Hypalon, Hycar, TFE. Special instructions for installation and maintenance It can be operated with a lever, steering wheel or sprocket wheel. Allow space for movement of the handle, if operated with a lever. The valves must be in closed position during handling and installation. Ordering Specifications Body type. Type of seat. Body material. Disc material. Seat material. Type of drive. Operating pressure. Operating temperature. Monclova, Coahuila

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9 2-Way and 3-Way Wafer and Lug Style Bodies Forward to mix and hot and cold water, steam and Special Applications Serie 31 Bray Controls is proud to offer this automated line of butterfly valves. The Series 31 is available in a terminal connection or body style of the wafer. Designed for general applications, this valve offers a long life, ease of replacement parts, and interchangeability of components. Bray high quality automated butterfly valves regulate the flow of hot and cold water or steam through all types of coils and heat exchangers. The Series 31 has a feature 2-way equal percentage flow. The 3-Way valves have a flow line. Both offer a very high operating range and bubble sealing capacity, function and ease of installation and maintenance. Optional features include: Bronze aluminum disks Cast steel bodies Fluoroelastomer seats to high temperatures up to +400 F. The Bray Series 31 provides a thin disk diskless profile / mother fasteners to prevent the flow. This design eliminates possible leak entries and enables high CV values with reduced turbulence. Mother burst design provides proof protection. Most electric and pneumatic actuators mount directly to Bray butterfly valves Bray, reducing space requirements. Serie 41 high performance The Series 41 offers two-way zero leakage, close to full ANSI Class 150 Nominal operating pressures. Rated at 150 psi saturated steam at 366 F for on-off applications and 50 psi at 300 F for modulating service. The simple, innovative, offering a high resistance and easy maintenance Resistant Seat Butterfly Valve. Monclova, Coahuila

10 Serie 30/31 Wafer/Lug Materials selection: 2 to 20. Body: Seat: Stem: Disc: Cast Iron ASTM A126 Class B. Ductile Iron ASTM A536. Forged Steel ASTM A216 WCB. Aluminum ASTM Buna-N- Food Grade. EPDM - Food Grade. FKM. White Buna-N- Food Grade. Carbon Steel. 416 Stainless Steel ASTM A582 Type Stainless Steel ASTM A276 Type Stainless Steel ASTM A276 Type 316. Monel. ASTM B148 Aluminum Bronze-954. Coating ASTM A536 Ductile Iron Gr. Ductile Iron, Nylon Coating, ASTM A536 Gr Ductile Iron, Halar Coating, ASTM A536 Gr Stainless Steel ASTM A351 CF8M. Hastelloy C-276 ASTM B575 Alloy N Monclova, Coahuila