MODEL TF (Top Entry)
MODEL TF (Top Entry)
VALVE DESCRIPTION
1 piece bolted bonnet design.They allow full in‐line maintenance.For this reason these valves can be welded to the pipeline without precluding possible repairing.
BASIC CHARACTERISTICS
- API 6D, ISO 17292 design
- Full Bore and Reduced Bore design
- Flanged, Welding, Threaded Ends
- Anti blow‐out stem
- Anti static device
- Fire safe design
Features
- Soft Seating Standard
- Metal Seating On request
- Manual operated or Actuated Standard
- Stem Extension On Request
- Extended Bonnet On Request
- Welded Pups / Nipples On Request
Material Selection
BODY, CLOSURE
– CS (ASTM A105), LTCS (ASTM A350 LF2)
– 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 Seals
– Graphite Packing / Gaskets
TRIM (SEAT, BALL and STEM)
– CS (ASTM A105), LTCS (ASTM A350 LF2) + 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 AZ182 F53/F55)
– 6Mo SS (ASTM A182 F44)
– Inconel 625
– Inconel 718
– Incoloy 825
– Monel
SEAT INSERT
– 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
