Features & Benefits

1. Weatherproof wiper seal to prevent environmental contamination to stem sealing element.
2. Double o-ring primary sealing on stem. All seals can be field replaced without the need to remove the cover or stem from the valve with vent valve open.
3. Stem design is not loaded by ball side thrust ensuring low operating torque and extended operational life.
4. Vent valve for block & bleed function and seat integrity verification.
5. Firesafe cover gasket protected by o-ring primary seal.

Specit fications

Didtek Top Entry Resilient-seated Ball Valves can be easily serviced or replaced in-line while the integrity of the valve is not affected. The exclusive Didtek seats compensate automatically for wear and fluctuations of pressure and temperature. Standard valves with MPTFE seats and graphite packing can handle steam service up to 250 psig (17.2 bar). Valves with carbon graphite filled seats are suitable for steam up to 450 psig (31 bar).

Size Range

2'' to 48''

Body Materials

CK3MCuN

Temperature Range

-196 to 650°C

Stem Materials

ASTM A479 Type 410
17-4PH
XM-19
ASTM A182 F316

Maximum Allowable Operating Pressure

ASME CL150, 300, 600, 900, 1500, 2500

Seat Materials

RPTFE, Nylon, Devlon, PEEK, Tek-Fil, TFM

Shutoff Rating

Zero Leakage

Ball Materials

ASTM A105 w/ENP
ASTM A350 Gr. LF2 w/ENP
ASTM A182 Gr. F316
ASTM A182 Gr. F316 w/ENP

Body Style

One Piece

Design Standard

API 6D, BS5351, ASME B16.34

End Connections

Flanged

Testing Standard

API 598, API 6D

Certifications

Lioyd's CE, Lioyd's UKCA, EAC, ISO 9001, API 6D, API 6FA

Ports

Full

Face to Face

ASME B16.10, API 6D

Applications

Oil and Gas Pipeline, Offshore Platforms, Onshore Terminals, Emergency Shutdown, Suction and Discharge Isolation, Block and Bypass, Pumping, Compression and Reinjection Units, Metering Stations, Pig Traps, Surge-Relief Skids, Decoking Isolation, Buried Services, Produced Water (Brine) Services