150lb to 2500lb
Push, Press, Forge, Cast, etc.
Carbon steel, stainless steel
ASTM A 105, ASTM A 181
Allloy steel flange
ASTM A182 F5; F11;F22;F91;F51
ASTM A350 LF1; LF2; A350 LF3 ;LF4;LF6;LF8
Stainless Steel flange
ASTM A182 F304/304H/304L
ASTM A182 F316/316H/316L
ASTM A182 F321/321H
ASTM A182 F347/347H
Nickel Alloys Flanges
Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825,
Copper Alloys Flange
Copper, Brass & Gunmetal
ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655,
DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633,
DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S : BS4504 , BS4504, BS1560, BS10
Wooden cases, pallets, nylon bags or according to the customers'
10-100 days depending on quantity
T/T or Western Union or LC
FCA Tianjin/Shanghai, CFR, CIF, etc
Other materials and drawings are available.
Steel Flange, Compact Flanges 1/2Inch - 48Inch And 150# To 2500#
With A182 / F51 / Inconel 625.
Compact Flanges (RCF ), NORSOK L005 , A182 F316/316L, F51, F53,
F55, Inconel 625, Incoloy 825, A105, A350 LF2, LF52-70
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
- RCF Advantage
- Space saving
- Weight saving up to 70%~80% than ANSI flanges
- Double Independent Seals make it safer
- Positive sealing method
- Larger range in design temperature and pressure
- Integrated sealing system (both inside and outside)
- 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 Materials
- ASTM A105, A350 LF2, LF6, A694 F52~F70
- AISI 4130, AISI 8630
- A182 F316/316L, F51, F53, F55, Inconel 625, Incoloy 825.
- Other material 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.
- 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
- RCF Design and Verification