Forged 900lbs Stainless Steel Flange With RTJ Face DN15-DN1200

Forged Stainless Steel 900lbs Flanges With RTJ Face

A Ring type joint flange(RTJ) is a machined metallic ring with a deep groove cut into its face. This groove rests a metal ring which gets
compressed when the connecting bolts of the flange are tightened. The RTJ flange (Ring Type Joint) is designed for high-pressure and/
or high-temperature pipeline applications. Applications include oil field valves, pipework assemblies, and high integrity pressure vessel joints.

Like other flanges, they use a gasket under compression to create a secure joint. But an RTJ flange differs from the more common flat and
raised face flange in several ways:

1.The gasket used is a steel ring – instead of the flat composite material type.
2.An RTJ flange has a groove machined into the flange surface to accept the gasket.
3.When the gasket deforms it creates a metal-to-metal seal.
4.Under compression, the softer metal of the gasket flows into the microfine structure of the harder flange material.
5.The raised faces of connected and tightened RTJ flanges may be in contact with each other. When this happens, the compressed gasket will not bear any extra load.The benefit is the integrity of the joint will be protected from over-tightening, vibration, and movement.

Product Information/Product Description/Basis Information/Specification

Flanges Specification and different types

ASME/ANSI B16. 5:

WELDING NECK FL ANGE, SLIPON FL ANGE. BLIND FLANGE. HIGH HUB BLIND FLANGE.

SOCKET WELD FL ANGE. LAPJOINT FLANGE,THREADED FL ANGE. RING TYPE JOINT FLANGE.

Pressure Class: 1 50.300,400. 600.900,1500,2500

ASME/ANSI B16.47 :

WELDING NECK FLANGE, BLIND FLANGE.

Pressure Class: 75,150. 300, 400.600,900

ASME/ANSI B16.36:

ORIFICE FLANGE WELDING NECK FL ANGE, SLIPON FLANGE,THREADED FLANGE.

Pressure Cass: 300, 400,600,900, 1500,2500

AWWAC207

AWWA standard steel-ring flanges, Class B* (86 psi)

AWWA standard steel-ring flanges, Class D* (175-150psi)

AWWA standard steel-hub flanges, Class D* (175-150 psi)

AWWA standard steel-hub flanges, Class E* (275psi)

AWWA standard steel-ring flanges, Class E* (275psi), Blind flanges 275PSI

AWWA standard steel-ring flanges, Class F* (300psi), Blind flanges 300PSI

MSS-SP-44

WELDING NECK FLANGE, BLIND FLANGE TO ANSI B16.47 SERIES A

Pressure Class: 75,150. 300, 400.600,900

JIS B2220/B2291 :

WELDIG NECK FLANGE, SLIPON HUB FLANGE SLIPONPLATE FLANGE, SHUT OFF FLANGE,

SQUARE FLANGE.

Pressure Class:5K.10K 16K 20K 30K

BS4504SEC3.1

WELDING NECK FLANGE (111/134). HUBBED SLIPON FLANGE (112),

HUBBED THREADED FLANGE (113). LAPPED PIPE END FLANGE (133) PLATE FLANGE (101).

LOOSE PLATE FLANGE (102) LOOSE PLATE WITH WELD-NECK FLANGE (104). BLANK FLANGE

(105).

Pressure Class: PN2.5 TO PN 40

BS1560:

WELDING NECK FLANGE. SOCKET WELDING FLANGE SLIP-ON BOSS FLANGE BLIND FL ANGE,

SCREWED BOSS FLANGE, LAPPED FLANGE.

Pressure Class: 150,300,400,600,900, 1500,2500

BS 10:

WELDING NECK FL ANGE. PL ATE SLIP-ON FLANGE. SCREWED, BOSS FLANGE,

SLIPON BOSS FLANGE, BLIND FLANGE.

Table: D.E,F,H

DIN FLANGE:

DIN2573.DIN2576.DIN2641891 DIN2642. DIN2655. DIN2656, DIN2632 DIN263.DIN2634.

DIN2635.DIN2636. DIN2637.DIN2638.DIN2673

Pressure from PN 6 TO PN320

AFNOR NFE 29-203:

PLATE FLANGE (01), LOOSE PL ATE FLANGE (02,03.04) BLIND FLANGE (05)

WELDING NECKFLANGE (111), HUBBED SLIP ON FLANGE (12) SCREWED FLANGE (13).

HUBBED SOCKET WELDING FLANGE(14),LOOSE HUBBED FLANGE(15),

INTEGRAL FLANGE (211)

Pressure Class: ISO- PN 2.5TO PN420

EN 092-1.

PLATE FLANGE SO (Type 01) LOOSE Plate flanges (Type02, 04) Blind flange (Type 05),

Welding Neck flange (Type 11), Hubbed Slip on Flange (Type 12), Screw Flange (Type 13),

Integral Flange (Type 21)

Pressure Class: PN2.5 to PN100

ASME/ANSI B16.9/MSS SP-43: STUB END. Type: A,B,C

UNI2253-67,UNI6091-67,UNI2276-67,UNI2280-67,UNI6089-67 PN6,PN10,PN16,PN25,PN40

GOST 12820-80,GOST 12821-80,Gost Blind

PN6,PN10,PN16,PN25, PN40, PN63, PN100, PN150,PN250

SABS1123

Technology/ How to use and install the different flange types

WELDING NECK FLANGES

They are connected to the pipe by means of a Butt weld connection. They are    

used when X-ray testing is required or if the torque over unions are maximum.

Its long tapered neck optimizes the stress distribution

SLIP-ON FLANGES

This kind of flanges are installed with two weld bead, sliding the pipe inside.

Thus installation costs are lower, so less accuracy is required for pipe cutting.

THREADED FLANGES

They are usually installed with the pipe previously threaded, in places where

welding cannot be done. We do not recommend to install if there are high

pressure variations in the system

LAP JOINT FLANGES

They slide on an overlapped gasket. They are commonly used where it is

necessary to dismantle in order to be cleaned or repaired. Dismantling cost

decreases due to the ease of flange turning and drilling alignment.

.

SOCKET WELD FLANGES

This kind of flange is especially designed for lower small diameters and high

pressures. The pipe is inserted into the flange up to the seat and then is fillet

welded against the cube.

BLIND FLANGES

Blind flanges are utilized for pipe ends, and they bolted to any of the above

flange types.

The stainless steel material that normally used

Material Grades:           Chemical Composition

                                      physical properties

SAF2205 (UNS31803)

Chemical Composition%

physical Performance

SAF2507(UNS32750)

Chemical Composition%

physical Performance

Flange Production Process/ Manufacture Prodcedure

Application/Usage

A flange is a method of connecting pipes, valves, pumps, and other equipment to form a piping system to convey the water, steam, air, gas and oil. It also provides easy access for cleaning, inspection, or modification.

Flange Photos for shipment

Slip on flanges, CL150LBS, threaded Flanges, 1500LBS RJ flanges, CL2500LBS Weld Neck flange, etc.