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Three-Piece, Full-Port Flanged, One-Piece Flanged

Brand: Worcester-Controls

Worcester Controls has the quality solution for tough valve applications where operational integrity must be maintained before, during and after a fire. 

The solution is Worcester’s Fire-Rated Valves that assure tight shutoff and prevent external leakage in the tremendous heat of an industrial fire. Heavy-duty body bolts and pipe ends add a great margin of safety to Worcester Fire-Safe Valves. 

Normal service performance is maintained with bubble-tight bidirectional sealing and three rugged seating materials - TFE, Reinforced TFE and Polyfill. All fire-rated products can be ordered to meet NACE MR-01-75. 

Worcester Controls Series FM 51/52 valves are a line of rugged flanged ball valves designed specifically to meet requirements of the FM 7440 Standards, flammable liquid service. 

The valve performance features are the same as AF 51/52 and FZ 51/52 Worcester Fire-Safe valves. The approved AFM valves have specific seat and body seal materials, actuator sizes and solenoid valve types (see specifications). 

When a Series 39 pneumatic actuator is used for on-off or throttling service, a fusible plug with splash guard is installed in the air line to the actuator. 

At a predetermined temperature, the plug melts, exhausting air to close the valve well before the actuator is threatened by fire exposure.

Specifications

Actuator Size

  • 0.5 to 4” (1.27 to 10.16 cm) Min.

Actuator Type

  • Electric
  • Gear Operator
  • Lever Handle
  • Pneumatic
  • Positioner Mode: Direct-Acting
  • Positioner Mode: Reverse Acting

Approvals & Certifications

  • API 607 (EXES 3-14-1-2A), 6D
  • FM 7440
  • ISO 9001

Ball Material

  • 316 Stainless Steel
  • Hastelloy C - Three-Piece, One-Piece Flanged
  • Monel - Three-Piece, One-Piece Flanged

Bearing Material

  • Thrust: Carbon-Filled TFE (Conductive)

Coil Voltage

  • Solenoid Voltage: 24-240 Vac
  • Solenoid Voltage: 6-24 Vdc

Enclosure, Body Material

  • Carbon Steel (ASTM A216 Grade WCB)
  • Stainless Steel (ASTM A351 Grade CF8M)

Environmental Protection

  • Typical 7 Class 1, Groups C & D

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 - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# ANSI
  • 1/2” (DN 15) - 300# ANSI

Flange Size - 10” (DN 250)

  • 10” (DN 250) - 150# ANSI
  • 10” (DN 250) - 300# ANSI

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - 150# ANSI
  • 2-1/2” (DN 65) - 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 - 3/4” (DN 20)

  • 3/4” (DN 20) - 150# ANSI
  • 3/4” (DN 20) - 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
  • 8” (DN 200) - 300# ANSI

Flange Type

  • Raised Face (RF)

Flow Rate

  • 32 to 18,500 Cv - Full-Port Flanged Valve
  • 8 to 1,800 Cv - Flanged Valve
  • 8 to 600 Cv - Three-Piece Valve

Materials of Construction

  • Follower: 316 Stainless Steel
  • Pipe End: Carbon Steel
  • Pipe End: Stainless Steel

NPT Connection

  • Port: 1/8” NPT

Nut & Bolt Material

  • Body Bolt & Bolt: 304 Stainless Steel (ASTM A193 Grade B8, ASTM A194 Grade 8)
  • Nut: Alloy 20

Operation

  • Pneumatic: Fail-safe

Pressure Rating

  • Actuator - psi: 60 to 120 (kPa: 414 to 827, bar: 4.13 to 8.27)

Seat / Seal Material

  • Body Seal, Stem Seal: Flexible Graphite, Graphite Coated Stainless Steel ”S” Gasket
  • Body Seal: TFE-Coated Stainless Steel ”S” Gasket
  • Seat: Metal ”G”
  • Seat: Polyfill
  • Seat: RTFE
  • Seat: TFE
  • Stem Seal: Grafoil

Stem Material

  • 316 Stainless Steel
  • Hastelloy C - Three-Piece, One-Piece Flanged
  • Monel - Three-Piece, One-Piece Flanged

Supply Pressure

  • Positioner Input - psi: 3 to 15 (kPa: 20.68 to 103.4, bar: 0.20 to 1.03)

Temperature Range

  • Rating: 260° C (500° F) - Max.

Valve Size

  • Three-Piece Valve: 1/4 to 2” (6.35 to 50.8 mm)

Welded Connection

  • 1” Butt Weld End
  • 1” Socket Weld End
  • 1/2” Butt Weld End
  • 1/2” Socket Weld End
  • 1/4” Butt Weld End
  • 1/4” 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
  • 3/8” Butt Weld End
  • 3/8” Socket Weld End

  • Cryogenic Systems
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