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D44, D4, D51, 18, 19 Directional Ball Valve
Brand: Worcester-Controls
Worcester’s Series D51 is a standardized line of flanged diverter ball valves in sizes 2", 3", 4", 6", and 8" with ANSI Class 150 flanges.
D51 diverter valves are designed to accept media through a bottom inlet port and direct it out either of two outlet ports.
They are commonly used for alternately diverting flow from a single source to two different lines; for example, dumping operations in which one outlet permits media to flow from a common source to the process while the other outlet alternately dumps or recirculates excess media.
Flowserve Worcester Controls’ Series 18 and 19 multi-way valves are designed to improve the efficiency and productivity of your process systems with up to 5 ports, slip-on flanges, multiple seat and body materials, standard or full port, and optional pneumatic and electric automation and anti-fugitive emission design.
Screwed, socket weld and butt weld ends are available as are slip-on flanges (ANSI Class 150 or 300).
Specifications
Brand
Actuator Type
- Electric
- Pneumatic
Ball Material
- 316 Stainless Steel - ASTM A479
Bearing Material
- Thrust & Seal Protector: PEEK
- Thrust: Polyfill
- Thrust: Reinforced RTFE
Direct Mount
- Yes
Enclosure, Body Material
- 316 Stainless Steel - ASTM A351 CF8M, 1.4408
- Brass
- Carbon Steel (ASTM 216 WCB)
Flange Material
- Carbon Steel
- Stainless Steel
Flange Size - 1-1/2” (DN 40)
- 1-1/2” (DN 40) - 150# ANSI
- 1-1/2” (DN 40) - 300# ANSI
Flange Size - 1” (DN 25)
- 1” (DN 25) - 150# ANSI
- 1” (DN 25) - 300# ANSI
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150# ANSI
- 2” (DN 50) - 300# ANSI
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150# ANSI
- 3” (DN 80) - 300# ANSI
Flange Size - 4” (DN 100)
- 4” (DN 100) - 150# ANSI
- 4” (DN 100) - 300# ANSI
Flange Size - 6” (DN 150)
- 6” (DN 150) - 150# ANSI
- 6” (DN 150) - 300# ANSI
Flange Size - 8” (DN 200)
- 8” (DN 200) - 150# ANSI
Flow Rate
- 3 to 605 Cv
Handle Assembly Material
- ANSI 300 Series Stainless Steel (Vinyl Coated)
- Carbon Steel Zinc-Plated (Vinyl Coated)
Materials of Construction
- Belleville Washers, Lock Washer, Centering Washer, Stop Plate: Zinc-Plated Carbon Steel
- Belleville Washers: 301 Stainless Steel
- Centering Washer: ANSI 316 Stainless Steel
- Follower: ANSI 316L Stainless Steel
- Lock Washer: ANSI 300 Series Stainless Steel
- Wrench Block: Malleable Iron (ASTM A47) - Black Oxide Coated
- Wrench Extension: Galvanized Steel / Carbon Steel (ASTM A53)
Nut & Bolt Material
- Handle & Retaining Nut: ANSI 300 Series Stainless Steel
- Handle & Retaining Nut: Zinc-Plated Carbon Steel
Operation
- 180°
- 90°
Plug Material
- End: 316 Stainless Steel - ASTM A479
- End: Carbon Steel (ASTM A108)
Port
- Full
- Standard
Screw Material
- Shipping: ANSI 304 Stainless Steel
- Stop: Black Oxide Coated Carbon Steel
Seat / Seal Material
- Body Seal, Seat: Buna
- Body Seal, Seat: Neoprene
- Body Seal, Seat: TFE
- Body Seal, Seat: UHMWPE
- Body Seal: EPR
- Body Seal: Viton
- Stem Seal, Seat: Polyfill
- Stem Seal: Reinforced RTFE
Stem Material
- 316 Stainless Steel - ASTM A479
Valve Type
- Automated
Welded Connection
- 1” Butt Weld End
- 1” Socket Weld End
- 1/2” Butt Weld End
- 1/2” Socket Weld End
- 1-1/2” Butt Weld End
- 1-1/2” Socket Weld End
- 2” Butt Weld End
- 2” Socket Weld End
- 3/4” Butt Weld End
- 3/4” Socket Weld End
- Modulating Applications