STANDARD MODEL (EB)
VALVE DESCRIPTION
The ball of trunnion mounted configuration is supported by bearing plates hold by the end adaptors. In such a way the pressure loads are transferred to the valve body granting a smooth rotation of the ball with low torque levels and reduced seat seal wear.
PERAR Trunnion Mounted Bolted Body Side‐Entry Ball Valves represent the basic design standard.
They are manufactured in a wide range of sizes and pressure classes typically from forgings.
SMALL MODEL (EC)
VALVE DESCRIPTION
The ball of trunnion mounted configuration is supported by external trunnions bolted to the body.
In such a way the pressure loads are transferred to the valve body granting a smooth rotation of the ball with low torque levels and reduced seat seal wear.
BASIC CHARACTERISTICS
- API 6D, API 6A design
- Full Bore and Reduced Bore design
- Flanged or Welding Ends
- Spring loaded floating seats
- Bi‐directional sealing
- Anti blow‐out stem
- Anti static device
- Heavy duty bearings
- Double Block & Bleed design
- Fire safe design
Model: EB
Size: 4” to 68”
Pressure Classes:
ASME 150# to 2500#
API 6A 3000 to 15000
Temperature Range: ‐196°C to 400°C
———————
Model: EC (small ball valves)
Size: 1/2” to 4”
Pressure Classes:
ASME 150# to 2500#
API 6A 3000 to 15000
Temperature Range: ‐196°C to 400°C
Soft Seating Standard
Manual operated or Actuated Standard
Metal Seating On Request
Stem Extension On Request
Self‐relieving Seats Standard
Extended Bonnet On Request
Double Piston Effect Seats On Request
Welded Pups On Request
Vent & Drain ports Standard
Sealing Areas Overlay On Request
Emergency sealant injection On Request for 6” FB and above
Wetted Areas Overlay On Request
BODY, CLOSURE
– CS (ASTM A105), LTCS (ASTM A350 LF2)
– High strength LTCS (A694 F52, F60, F65)
– Austenitic SS (ASTM A182 F304, F316)
– Duplex SS 22% Cr (ASTM A182 F51)
– Superduplex SS 25% Cr (ASTM A182 F53/F55)
– 6Mo SS (ASTM A182 F44)
– Inconel 625
– Incoloy 825
– Monel
BODY SEALS / SEAT SEALS
– Viton A FKM O‐ring
– Viton GLT FKM O‐ring
– Viton AED FKM O‐ring
– HNBR AED O‐ring
– FFKM O‐ring
– PTFE + ELGILOY Lip‐Seals
– Graphite Packing / Gaskets
TRIM (SEAT, BALL and STEM)
– CS (ASTM A105), LTCS (ASTM A350 LF2) + ENP 0.003”
– High strength LTCS (A694 F52, F60, F65) + ENP 0.003”
– AISI 410 Martensitic SS (ASTM A182 F6a)
– 17‐4 PH
– Austenitic SS (ASTM A182 F304, F316)
– Duplex SS 22% Cr (ASTM A182 F51)
– Superduplex SS 25% Cr (ASTM A182 F53/F55)
– 6Mo SS (ASTM A182 F44)
– Inconel 625
– Inconel 718
– Incoloy 825
– Monel
SEAT INSERT
– Viton A/GLT/AED FKM (only EB model)
– HNBR (only EB model)
– PTFE / RPTFE
– Nylon / DEVLON V
– PCTFE / KEL‐F
– PEEK
– METAL with either TUNGSTEN CARBIDE or
– CHROMIUM CARBIDE COATING (0.15 mm min. thk.)
BOLTING
– ASTM A193 B7/B7M, ASTM A320 L7/L7M,
– A193/A320 B8/B8M
– UNS S31803, UNS S32760, ASTM A453‐GR.660