Overview
Wellhead fittings & valve components include Grease Fittings, Bleeder Fittings, Check Fittings, Cavity Plugs, Relief Valves, and Bleeder Bonnet.
These are supplied for high-pressure applications such as oil&gas pipelines, wellhead, petrochemical, refinery or industrial fluid control, etc. At the same time, it is also used in various Large-Calibred valves, such as Gate valves, Trunnion mounted ball valves, Plug valves, etc., belonging to the main parts of the valve accessories.
Functions of valve fittings include grease or sealant injection, pressure relief, flow directing, etc.
This series of products are designed and manufactured according to API Specification.
Structure
- With or without o-ring
- Short or long pattern
- Ball STD in stainless steel 316 or on request in monel, inconel 625
- Spring STD in stainless steel 316 or on request in inconel 718, 625 and 750
Available materials
- Carbon Steel A105 or LF2
- Stainless Steel grade 316(L), 304(L)
- Duplex F51 and superduplex F53, F55
- Inconel 625
- Other special alloys
Size
- NPT 1/2”, 1/4”, 3/8”, 3/4”, 1”, 1-1/2”
- GAS 1/2”, 1/4”, 3/8”, 3/4”, 1”, 1-1/2”
Purpose
Wellhead Fittings are used to lubricate mechanical systems such as wellhead and valves, and inject grease to improve pipeline integrity.
Bleeders also can be used on instrumentation devices such as multivalve manifolds or gauge valves to vent signal line pressure to atmosphere before removal of an instrument or to assist in calibration of control devices.
