RESILIENT SEATED BUTTERFLY VALVES BRAY.
TABLE OF CONTENTS Body Style Size Range Pressure Range Series 20 Wafer 1”-20” (25mm-500mm) 150 psi (10.3 bar) Series 21 Lug 2”-20” (50mm-500mm) 150 psi (10.3 bar) Series 22 Wafer 2”-20” (50mm-500mm) 150 psi (10.3 bar) Lug 2”-20” (50mm-500mm) 150 psi (10.3 bar) Double Flanged 24” (600mm) 150 psi (10.3 bar) 2”-12” (50mm-300mm) 175 psi (12 bar) 14”-20” (350mm-500mm) 150 psi (10.3 bar) 2”-12” (50mm-300mm) 175 psi (12 bar) 14”-20” (350mm-500mm) 150 psi (10.
FEATURES AND BENEFITS 1”- 20” (25mm - 500mm) ISOLATION FROM LINE MEDIA POLYESTER COATING Bray’s seat design and internal disc to stem connection isolates the line media from the body and stem. The Bray standard polyester body coating is a hard, gloss red finish. The polyester coating provides excellent corrosion and wear resistance. INTERNAL DISC TO STEM CONNECTION Series 30/31 Sizes 2”– 20” (50mm–500mm) Bray offers Double "D" precision machined flats on the stem and in the disc.
SEAT MATERIALS Series 20, 21, 3A, 30, 31, 32, 33, 35, 36 Rated Operating Temperature (ºF) 400 350 300 250 200 EPDM HTEPDM FKM BUNA-N Polyurethane Neoprene 150 100 50 0 -20 PEROXIDE CURED EPDM FKM -20°F to 250°F (-29°C to 121°C) 0°F to 400°F (-18°C to 204°C) Bray’s peroxide cured EPDM (Ethylene Propylene Diene Monomer) seats have a higher resistance to abrasion, lower compression set, and higher temperature capabilities than sulfur cured seats.
Series 20, 21 Series 22, 23 200 PTFE Lined EPDM PTFE Lined HTEPDM Virgin PTFE Conductive PTFE UHMWPE 100 50 0 Rated Operating Temperature (ºC) 150 -29 PTFE LINED EPDM CONDUCTIVE PTFE -20°F to 250°F (-29°C to 121°C) 0°F to 400°F (-18°C to 204°C) PTFE lined EPDM seats consist of a PTFE liner which forms the flange sealing faces and the flow way of the seats which are molded on to EPDM elastomer backings. Only the inert, nonstick PTFE liner surface is exposed to the line media.
SERIES 20/21 1”- 20” (25mm-500mm) The Series 20/21 valve surpasses the high standards required in sanitary applications. The disc geometry provides superior inherent flow characteristics and capabilities. PRESSURE RATINGS BIDIRECTIONAL BUBBLE TIGHT SHUT OFF Downstream flanges and disc in closed position Resilient Seated Metal Disc/Stem 1”-20” (25-500mm) 150 psi (10.
MATERIAL SELECTION OPTIONS BODY MATERIAL DISC/STEM MATERIAL SEAT MATERIAL Cast Iron✦ 316 Stainless Steel✦ EPDM Food Grade✦ Ductile Iron✦ Hastelloy® C-22 BUNA-N Food Grade✦ 316 Stainless Steel PTFE molded over stainless steel HTEPDM Aluminum EPDM molded over stainless steel White BUNA-N Food Grade BUNA-N molded over stainless steel FKM* Halar coating over stainless steel PTFE Lined EPDM ® PTFE Lined HTEPDM Standard Option ✦ *FKM is the ASTM D1418 designation for fluorinated hydrocarbon
SERIES 22/23 2”- 24” (50mm-600mm) Extensive field research and engineering have developed this design which provides bubble tight shutoff and high Cv values. The Series 22/23 features a stainless steel disc that can be encapsulated in PTFE, PFA, or UHMWPE to fit a wide range of customer applications. The PTFE seat is isostatically molded to provide superior chemical resistance.
Seal Capsule The secondary seal is achieved using a seal capsule which fully isolates the valve body and stem from the line media. The seal capsule is made of a virgin PTFE enclosing the internal energizer. The capsule fits into grooves machined in the upper and lower disc hubs. When compressed between the disc and seat during assembly, the capsule becomes energized, exerting both upward and downward pressure on disc and seat surfaces. Body Seals Reinforced PTFE gaskets are placed between the body halves.
SERIES 30/31 2”- 20” (50mm-500mm) The Bray Series 30/31 features a high strength one piece stem design utilizing an efficient internal disc to stem connection. This resilient seated butterfly valve provides a primary and secondary seal between the disc and seat as well as the stem and seat which ensures the total encapsulation of the line media and zero external leakage.
MATERIAL SELECTION OPTIONS BODY DISC Cast Iron Ductile Iron✦ Carbon Steel Aluminum ✦ STEM Nylon 11 Coated Ductile Iron 316 Stainless Steel✦ Nickel Aluminum Bronze Coated Ductile Iron Halar® Coated Ductile Iron 304 Stainless Steel Duplex Stainless Steel Super Duplex Stainless Steel Hastelloy® SEAT 416 Stainless Steel 304 Stainless Steel 316 Stainless Steel Monel® K500 ✦ BUNA-N Food Grade✦ EPDM Food Grade✦ FKM* White BUNA-N Food Grade Bonded EPDM Bonded BUNA-N ✦ Standard Option ✦ *FKM is the ASTM
SERIES 31U 2”- 12” (50mm-300mm) Bray offers this high pressure resilient seated butterfly valve to meet the requirements of today’s industrial and marine markets. This valve is specifically designed for onshore and offshore fire protection. The Series 31U is designed to withstand high line velocities and pressure drops through the valve.
MATERIAL SELECTION OPTIONS Body Nickel Aluminum Bronze✦ Carbon Steel Ductile Iron Disc 316 Stainless Steel✦ Monel® K500✦ Nickel Aluminum Bronze✦ Stem 17-4PH Stainless Steel Monel® K500 Stainless Steel Seat Bonded BUNA-N Standard Option ✦ Monel® is a registered trademark of The International Nickel Company, Inc. Material availability depends on valve size and series. Other materials are available. Please consult your local Bray representative for your specific application.
SERIES 3A/3AH 2”- 20” (50mm-500mm) Bray’s Series 3A/3AH valve is a double flanged design which can be used for dead end service and as a replacement for a gate valve. A major design advantage of the Series 3A/3AH is international compatibility. The same valve is compatible with most world flange standards – ASME Class 125/150, BS 10 Tables D and E, BS 4504 NP 10/16, DIN ND 10/16, AS 2129 and JIS10.
MATERIAL SELECTION OPTIONS BODY STEM Cast Iron Ductile Iron✦ Carbon Steel ✦ SEAT 416 Stainless Steel 304 Stainless Steel 316 Stainless Steel Monel® K500 ✦ DISC Bonded EPDM Bonded BUNA-N✦ Bonded FKM* ✦ Nylon 11 Coated Ductile Iron✦ 316 Stainless Steel✦ Nickel Aluminum Bronze Coated Ductile Iron Halar® Coated Ductile Iron 304 Stainless Steel Duplex Stainless Steel Super Duplex Stainless Steel Hastelloy® Standard Option ✦ *FKM is the ASTM D1418 designation for fluorinated hydrocarbon elastomers (al
LARGE VALVE FEATURES AND BENEFITS 22”- 120” (550mm - 3000mm) ISOLATION FROM LINE MEDIA Bray’s seat design and internal disc to stem connection isolates the line media from the body and stem. INTERNAL DISC TO STEM CONNECTION Bray offers splined and keyed disc to stem connections. These internal, non-wetted connections eliminate external disc to stem connections such as screws or taper pins. Spline: Male splines on the stem and female in the disc.
SERIES 32/33 22”- 36” (550mm-900mm) The Series 32/33 has many of the design features and benefits of the smaller Bray valves, such as high Cv ratings, minimum parts exposed to the line media, greater reliability and a proven record of long service life. PRESSURE RATINGS BIDIRECTIONAL BUBBLE TIGHT SHUT OFF Downstream flanges and disc in closed position Series 32 (Wafer) 22"-36” (550-900mm) 75 psi (5.2 bar) Series 33 (Wafer) 22"-36” (550-900mm) 150 psi (10.3 bar) BODY : 150 psi (10.
MATERIAL SELECTION OPTIONS BODY DISC Cast Iron Ductile Iron✦ Carbon Steel 316 Stainless Steel ✦ STEM Nylon 11 Coated Ductile Iron 316 Stainless Steel✦ 304 Stainless Steel Aluminum Bronze Monel® Hastelloy® Duplex Stainless Steel Super Austenitic Stainless Steel ✦ 416 Stainless Steel 304 Stainless Steel 316 Stainless Steel 17-4 PH Stainless Steel Monel® Duplex Stainless Steel Super Austenitic Stainless Steel ✦ SEAT PACKING EPDM BUNA-N✦ FKM* BUNA-N ✦ BEARINGS Valves 54”(1400 mm) and larger are prov
SERIES 35/36 22”- 120”(550m-3000mm) The Series 35/36 valves provide the same robust features of the Series 32/33 valves while adding 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.
SERIES 35/36 FULL FLANGED MATERIAL SELECTION OPTIONS BODY DISC STEM Nylon 11 Coated Ductile Iron 316 Stainless Steel 304 Stainless Steel Nickel Aluminum Bronze Monel® Hastelloy® Duplex Stainless Steel Super Austenitic Stainless Steel Cast Iron Ductile Iron✦ Carbon Steel 316 Stainless Steel ✦ ✦ SEAT 416 Stainless Steel EPDM✦ 304 Stainless Steel BUNA-N 316 Stainless Steel FKM* Valves 54” 17-4 PH Stainless Steel (1400mm) Monel® and larger Duplex Stainless Steel are provided Super Austenitic Stainless St
SERIES 70 ELECTRIC ACTUATOR The Series 70 is a low profile, compact, and powerful actuator with customer-friendly features • • • • Manual declutchable handwheel Local high visibility dome position indicator Digital interface available Optional microprocessor based modulating control Torque Voltage Standard Enclosure Explosion Proof 300 to 18,000 lb-ins (34 - 2030 Nm) VAC: 24, 120, 220, VDC: 12, 24 NEMA Type 4, 4X NEMA Type 4, 4X and specifications for USA and Canadian hazardous locations Class I Div 1 &
SERIES 6A ELECTRO‑PNEUMATIC POSITIONER • • • • • • • • Precision digital control Zero bleed design Compatible with rotary or linear actuators for single and double acting applications Various housing options available Precise, microprocessor driven flow control and advanced communication Non-contacting position sensor technology Integral volume booster Connective and preventative maintenance self-diagnostic checks SERIES 6P P/P POSITIONER • • • • • • Pneumatic to pneumatic positioner for single and doubl
BRAY INTERNATIONAL PRIMARY SALES AND SERVICE LOCATIONS USA Houston, Texas CHINA Hangzhou, Zhejiang MEXICO Zapopan, Jalisco RUSSIA Moscow AFRICA Johannesburg COLOMBIA Bogotá MIDDLE EAST Dubai SINGAPORE Ubi Techpark BENELUX Heerhugowaard FRANCE Voiron PACIFIC Melbourne, Australia SOUTH KOREA Seoul BRAZIL Paulinia, Sao Paulo GERMANY Krefeld PERU Lima SOUTHEAST ASIA Malaysia CANADA Montreal INDIA Vadodara POLAND Oświȩcim UNITED KINGDOM Glasgow CHILE Santiago ITALY Milano FLOW-TEK RITE C
