Check Valve Bray/Rite®

Bray/Rite® size design reduces wear and extends service life, suitable for pump protection and water hammer control on 1" to 60" pipelines

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Product Overview

Bray/Rite® size design reduces wear and extends service life

Extended Service Life Through Shape-Optimized Check Valve Design

The Bray/Rite® wafer combination swing check valve features flow-activated operation with Rite sizing. The Bray/Rite® bore and disc shape are optimized for full opening at low flow conditions (average 3 ft/s). As a result, compared with typical full-size swing check valves, Bray/Rite® performs better in pipelines that normally contain control valves and various media flows. This is partly because full-size swing check valve discs are both large and heavy, achieving full opening only at average flow rates of 11 ft/s. When started at lower flow rates, these valves lose true controllability and cannot fully open. Partially open discs create obstruction, resulting in higher pressure drop, causing valve disc vibration, which in turn disturbs the flow and increases the likelihood of water hammer. Bray/Rite®‘s Rite sizing eliminates these issues. It is carefully designed to accelerate the pipeline media through the valve, achieving virtually unobstructed full opening at low pressure. Rite sizing, combined with limited movement of internal components during operation, reduces wear and extends the service life of Bray/Rite® valves.

Technical Specifications

Item	Parameter
Size Range	1” to 60” (25mm to 1500mm)
Body Material	ASTM A 126 CLB, ASTM A 395, ASTM A 216 WCB, ASTM A 351 CF8M, Titanium
Temperature Range	Low to high temperature (selected standby mode)
Gasket Material	PTFE, SS316
Maximum Allowable Working Pressure	API 594 (150, 300, 600, 900, 1500, 2500) ASME (125, 150, 300) PN (10, 16, 25, 40)
Seat Material	BUNA-N, EPDM, A240 - 304 (integral or inserted), PTFE, Viton
Seal Class	Zero leakage
Disc Material	Standard SS316 (or higher grade)
Body Type	Wafer, Flanged, RTJ
Design Standard	API 594, ASME B16.34
Certification	API 6FD, CE, CRN, FM, NSF-61, PED, ULC
Test Standard	API 598, ASME B16.34
Face-to-Face Length	ANSI, API 594
Model	201, 203, 205, 210, 211, 212, 260, 312
Accessories	H-100, SA-01, SA-1, SA-2, SA-10, SA-16, SA-40, SA-50
Application	Pump protection, water hammer reduction

FAQ

Why can the Bray/Rite® check valve achieve full opening at lower flow rates?

The Bray/Rite® uses Rite sizing design with optimized bore and disc shape to accelerate media flow through the valve, enabling full opening at an average flow rate of approximately 3 ft/s. In comparison, typical full-size swing check valves typically require an average flow rate of approximately 11 ft/s to fully open.

What operational advantages does the Bray/Rite® check valve offer under low flow conditions?

Under low flow conditions, traditional full-size swing check valves may experience higher pressure drop, disc vibration, flow disturbance, and increased water hammer risk due to incomplete disc opening. The Bray/Rite® achieves nearly unobstructed full opening at lower pressure, helping to mitigate these issues.

What piping applications are suitable for the Bray/Rite® check valve?

This series is suitable for pump protection and piping systems requiring water hammer reduction, particularly in applications involving control valves and significant media flow variation. Specific models, pressure ratings, body styles, and seat materials should be confirmed based on actual application conditions.

What sizes, pressure ratings, and connection types are available for the Bray/Rite® check valve?

Size range is 1" to 60" (25 mm to 1500 mm). Maximum allowable working pressure covers API 594 Class 150, 300, 600, 900, 1500, 2500, ASME Class 125, 150, 300, and PN 10, 16, 25, 40. Body types include wafer, flanged, and RTJ.

How does the Bray/Rite® check valve reduce wear and extend service life?

The Rite sizing design enables the valve to reach full opening more quickly during operation, reducing disc vibration and flow disturbance caused by partial opening. Additionally, limited movement of internal components during operation helps reduce wear and extend service life. This series is tested to API 598 and ASME B16.34 with zero leakage sealing.

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