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Based on NORSOK L005 code, suitable for critical sealing applications with high thermal expansion, cyclic loading such as Risers, single point mooring systems, manifolds, X-Trees, subsea pipelines, heat exchangers and a multitude of process piping systems.
RCF Advantage
Space saving
Weight saving up to 70%~80% than ANSI flanges
Double Independent Seals make it safer
Positive sealing method
Integrated sealing system (both inside and outside)
Larger range in design temperature and pressure
RCF Working Principle
The RCF compact flange design principle is that the flange face includes two independent seals. The first seal is created by application of seal seating stress at the flange heel. The main seal is the IX seal ring. The seal ring force is provided by the elastic stored energy in the stressed seal ring. Any heel leakage will give internal pressure acting on the seal ring inside intensifying the sealing action.
RCF Size and Pressure Rating
1/2”~48” in size and Class 150# to 2500# in pressure rating.
Bigger size and higher pressure rating on request.
RCF IX seal ring, axial forces are exerted on the taper of the metal seal ring and translated into a radial sealing force. Furthermore with increased pre-load, the bevel is closed and face to face contact is achieved at the outer wedge while most of the bolt pre-load is transferred as compressive forces between the flange faces at the heel.
RCF Design and Verification
Yuhong Special Steel provides calculation service based on ASME section VIII Division 1, 2 and 3. Also we have ANSYS software engineers to do the analysis and design verification
Specification
Product
Flange
Size
1/2"-72"
Type
Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint,Spectacle Blind,Etc
Standard
ANSI, ASME ,MSS, API, DIN, JIS, BS. AWWA and GB
Class
ANSI 150LBS-2500LBS,
DIN PN6-PN160
BS PN0.25-PN25 PN2.0-PN42.0
JIS 5K-30K
Materials
Carbon Steel
Low Temperature Carbon Steel: ASTM SA350 LF2
High Strength Steel: ASTM SA694 F42/46/52/56/60/65
TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai.
We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...