Ceramic Lined Butterfly Valve Series 39 Bray International https://www.bray.com/images/default-source/products/resilientseatedvalves/s39/s39l-6in_02thumbnail.png?sfvrsn=69777623_4

Ceramic Lined Butterfly Valve

Series 39

Size Range
NPS 2 to 20 / DN 50 to 500
Temperature Range
-20°F to 300°F (-29°C to 150°C)
Maximum Allowable Operating Pressure
230 psi (16 Bar)


Ceramic Lined Butterfly Valve - Series 39

Size Range
NPS 2 to 20 / DN 50 to 500
Body Materials
Ductile Iron, Stainless Steel
Temperature Range
-20°F to 300°F (-29°C to 150°C)
Stem Materials
17-4PH Stainless Steel
Maximum Allowable Operating Pressure
230 psi (16 Bar)
Liner Materials
Ceramic (Sintered Silicone Carbide) Metallic Carbide Rich, Chrome Iron Alloy
Disc Materials
Chrome-Molly Iron (Hardened), PSZ Ceramic (Partially Stabilized Zirconia)
Body Style
Wafer, Flanged Long Body
Design Standard
ASME B16.34
Flange Drilling
ASME B16.5 Class 150
Testing Standard
API 598
Face to Face
Manufacturer's Standard
Highly Abrasive, Slurry Control

Features & Benefits

Bray’s Series 39 ceramic lined, slurry control valve is robustly designed to withstand the most demanding services including slurry, erosive, corrosive and scaling applications. Bray’s Series 39 valves are produced in easily serviceable, advanced wear resistant materials such as sintered silicon carbide ceramic or chrome-molybdenum iron. These durable valves deliver the highest quality and lowest total cost of ownership slurry control value solution on the market, leading to a more reliable and better performing product. 

  • A. Adjustable Packing

    The stem packing is easily accessible without requiring removal of the actuator.

  • B. Direct Mounting of Actuation

    One-piece high strength 17-4PH stainless steel used in all sizes. Bray’s double-D stem design and ISO 5211 top plate allow for direct mounting of Bray actuators, reducing package complexity.

  • C. Engineered Stem Bearings

    The upper stem bearing made from a 316 stainless steel outer shell and TFE/glass liner along with the lower stem bearing made of PSZ ceramic provide excellent resistance to corrosion and distortion caused by mechanical loading and high temperatures.

  • D. Blow Out Proof Stem

    A retaining ring system is installed to ensure full retention of the stem in the unlikely event of internal stem failure.

  • E. Ceramic Liner

    The diamond ground liner, made from Silicon Carbide Ceramic, has a high hardness rating and in most applications the liner will outlast the hard-wearing single offset disc. This design is long lasting with minimal maintenance cost, as only a few parts will ever require servicing.

  • F. Designed Control

    The Series 39 is a control valve, the disc does not provide tight shutoff. The disc design maximizes flow with material options to minimize wear. This valve can in fact, swing through 360 degrees.

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