281.227.9911 • fax 281.227.9912 • 15862 Diplomatic Plaza Dr. • Houston, TX 77032 • firstname.lastname@example.org
API-6A TVC Gate Valves
Model TFC Gate Valves
TVC Model TFC forged-body slab gate valves are designed for oil and natural gas wellhead, manifold or other critical service applications with operating pressures from 10,000 to 15,000 psi. All model TFC slab gate valves are API 6A Latest Edition monogrammed equipment and are available in bore sizes ranging from 1-13/16" through 5-1/8".
Model TFC valves are available with API 6A Temperature ratings of L (-50 F) through Y (650 F). Valves for API Temperature ratings of X and Y are pressure de-rated as required per Annex G of API 6A Latest Edition.
The single piece slab gate is field-replaceable and provides the valve with full bi-directional sealing capability at both high and low pressures.
The standard gate to seat and seat to body sealing interface is a two-piece design consisting of a seat ring and a body bushing, assisted by inserts in the rear of each piece. Metal-to-metal gate to seat interface is standard. Metal inserts are used for high-temperature applications.
Stem packing is replaceable and assisted by an anti-extrusion ring. This ensures efficient sealing for the life of the valve. Graphite packing is used for high-temperature applications.
All Model TFC valves have an integrated metal-to-metal stem to bonnet backseat. When valve is in backseat position, pressure is contained within the valve cavity and cannot ingress into bonnet or stem packing area.
The valve body may be lubricated through the grease fitting provided in the valve bonnet. An in-line check valve is provided behind the grease fitting to ensure a unidirectional flow. All fittings meet the requirements of NACE MR0175.
Lubrication and Corrosion Protection
All Model TFC valves have body cavity lubrication appropriate for the material class and temperature rating of the valve. This ensures smooth operation of the valve under pressure and prevents corrosion during storage.
Full Through Conduit Bore
The full through conduit bore provides for smooth flow with minimal turbulence. It also provides an unobstructed passage for well intervention tools.
All Model TFC valves are drift tested in TM with API 6A Latest Edition requirements.
Piston Pneumatic Actuator Introduction, Operation
Features & Benefits
Parts & Specifications
Control Pressure Equations
Model TFC 10,000 – 15,000 PSI
Slab Gate Valves
A Valve Bore
E Bore centerline to bottom of valve
F Bore centerline to handwheel top
G Handwheel diameter
J Flange face to face
N Number of turns to open valve
WT Estimated weight
281.227.9911 • fax 281.227.9912 • 15862 Diplomatic Plaza Dr. • Houston, TX 77032
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