Description:
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, , A350 LF2, LF52-70
• RCF NORSOK NCF5 Series
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
o Space saving
 Weight saving up to 70%~80% than ANSI flanges
o Double Independent Seals make it er
 Positive sealing method
o Integrated sealing system (both inside and outside)
 Larger range in design temperature and pressure
• RCF Working Principle
o 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
o 1/2”~48” in size and Class 150# to 2500# in pressure rating.
o Bigger size and higher pressure rating on request.
• RCF Materials
o ASTM A105, A350 LF2, LF6, A694 F52~F70
o AISI 4130, AISI 8630
o A182 F316/316L, F51, F53, F55, Inconel 625, Incoloy 825.
o Other material on request
o 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
o 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

company catalog

Our company
We are one of the Professional manufacturers and Exporter Group Pipeline products in China .
Our Group company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians.
We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories.
Now, it owns a number of advanced pipe production equipments, metal, forging, machining, cold forming, hot extrusion, s
uch as heat treatment process, producing 60, 000 tons of pipe fittings.
Company with a variety of detection devices, such as nondestructive testing, chemical analysis, metallographic examination,
physical experiments. The technical is very strength, our main products contain fittingsforged socket welding fittings and threaded fittings, pipe weld and the materials of the products contain stainless steel ,duplex-stainless steel alloy steel.
In addition, we are authorized by more than 120 top-class mills from South Korea,Japan and China like JFE,SUMITOMO,POSCO,BAOSTEEL, TISCO,LISCO,.TPCO,HENGYANG VALIN and so on .
Our main products as follows:
• Stainless steel pipe & tube
(seamless pipe / welded pipe / square pipe / rectangular tube,duplex stainless / inconel tube)
• Carbon / alloy steel pipe & tube
(seamless pipe / ERW / SSAW / LSAW / UOE / hollow section pipe / Galvanized Pipe)
• Tubing and casting
(line pipe,water pipeline,gas pipeline,oil pipeline)
• Special steel tube
(copper tube/titanium tube/aluminium tube/nickel alloy )
• steel bar
(round bar/angle steel /flat steel/channel steel/steel wire)
• Pipe Fittings
(eblows, equal / reducing tees, concentric/eccentric reducers, caps, crosses, bends, dish end/end cup, stub ends, unions,
couplings / hex couplings, swage nipples , nipples, hex. plug, sockolet, weldolet, thredolet, etc)
• Flange
(DIN flange/ AISI flange/blind flange/welding flange/stainless flange/slip on flange)
• steel sheet / coil
(stainless steel/carbon steel/alloy steel/galvanized steel/aluminium )
• Valve
(ball valve/gate valve/butterfly valve/globe valve/swing check valve/ check valve)
In order to comply with the global modernization services development trends and eliminating the varieties distress of the global enterprise‘s purchase in the consumables..
We coordinate the pressure pipe manufacturer which with the scale of production, quality control and high cost performance (has passed ISO 9001 quality series attestation, CCS,DNV,PED/97/23/EC,AD2000-WO,special equipment manufacturing license,ASME-SA182.through a variety of effective assort mechanism to make up the shortage of supply and Post-processing of VAT enterprise, and to supply high quality pipe fittings, because of the superior quality and good service, we have established long term business cooperation with more than 60 countries and areas,which covers Europe, Africa, South America, North America, Middle East, Taiwan and South East Asia and so on. With many years effort and support from our valuable customers, these products have obtained a big market share in the world.
Our business principle is "Superior quality, Competitive price, Timely delivery and Considerate service " Standing to the principle of “Enterprises focus on the core business”,
Our Group will actively promotes the globalization of business strategy approach, using advanced supply chain management technology to service for clients with higher quality
and more competitiveness ‘ s products. At the same time, we sincerely reply your inquiry, honesty waiting for your visiting and wish to have cooperation with you at the any time.
We welcome all the customers to contact us for more information. We assure you, with our technical knowledge and experience, our company will be one of your Stable,
Continuate business parters in China.

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