OEM manufacturer ASME B16.5 · EN 1092-1 (facing Type E / Type F)
Male and Female Flanges — ASME B16.5 & EN 1092-1
Male and female flanges are a matched pair: one has a raised male face and the other a recessed female face that it fits into. Teshi Group manufactures M&F flanges with large and small male and female facings to ASME B16.5 and spigot/recess Type E/F facings to EN 1092-1.
Also called: M&F flange, male female facing flange, spigot and recess flange, MF flange
What are Male and Female Flange?
In a male and female joint, the gasket sits on the female face and the male face presses it into the recess, so the gasket is confined on its outside diameter and the flanges self-locate. It is a simpler interlocking facing than tongue and groove, used for heat exchanger shells and channel covers, pumps and equipment connections. As with T&G, the flanges must be ordered as a pair and the system arranged so one flange can be moved axially for dismantling. EN 1092-1 calls these facings Type E (spigot) and Type F (recess).
Key features
- Gasket confined on its outside diameter
- Self-locating joint
- Large and small male/female facings per ASME B16.5
- EN 1092-1 Type E spigot and Type F recess
- Supplied as matched pairs
Specification
| Supply | OEM manufacturer — Teshi Group, India |
|---|---|
| Standard | ASME B16.5 (large and small male and female); EN 1092-1 facings E and F |
| Flange types | Weld neck, blind, slip-on, other types to order |
| Pressure class | ASME B16.5 class or EN 1092-1 PN as specified |
| Materials — carbon steel | ASTM A105 / A105N; ASTM A181 Cl 60, Cl 70; ASTM A266 Gr 2, Gr 4 (large forgings) |
| Materials — high-yield carbon steel | ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 (MSS SP-44 grades F52–F70) |
| Materials — low-temperature carbon steel | ASTM A350 LF1, LF2 Cl 1, LF2 Cl 2, LF3, LF6, LF9 |
| Materials — alloy steel (Cr-Mo) | ASTM A182 F1, F2, F5, F5a, F9, F11 Cl 1 / 2 / 3, F12 Cl 1 / 2, F21, F22 Cl 1 / 3, F22V, F91, F92, F911; ASTM A336 F11, F22 (large forgings) |
| Materials — stainless steel | ASTM A182 F304, F304L, F304H, F304LN, F309H, F310, F316, F316L, F316H, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348 |
| Materials — 904L and 6Mo | 904L (ASTM A182 F904L, UNS N08904); 254 SMO / 6Mo (ASTM A182 F44, UNS S31254); AL-6XN (ASTM A182 F62, UNS N08367) |
| Materials — duplex stainless steel | ASTM A182 F51 (UNS S31803), F60 (UNS S32205, 2205) |
| Materials — super duplex stainless steel | ASTM A182 F53 (UNS S32750, 2507), F55 (UNS S32760), F61 (UNS S32550) |
| Materials — nickel alloys | ASTM B564 / B160 / B462: Nickel 200 / 201 (N02200 / N02201), Monel 400 (N04400), Monel K-500 (N05500), Inconel 600 (N06600), Inconel 625 (N06625), Inconel 718 (N07718), Incoloy 800 / 800H / 800HT (N08800 / N08810 / N08811), Incoloy 825 (N08825), Hastelloy C276 (N10276), Hastelloy C22 (N06022), Hastelloy B2 / B3 (N10665 / N10675), Alloy 20 (N08020) |
| Materials — titanium | ASTM B381 Grade F1, F2, F5 (Ti-6Al-4V), F7, F12 |
| Materials — copper-nickel | Cu-Ni 90/10 (UNS C70600) and 70/30 (UNS C71500), ASTM B151 bar; flanges to ASME B16.5 or EEMUA 145 |
| Grade availability | Every grade listed is made or supplied against order, with EN 10204 3.1 certificates (3.2 / third-party inspection when specified) and PMI on alloy, stainless, duplex and nickel grades. |
| Testing | Visual and dimensional inspection, PMI on alloy and stainless grades, hardness; UT, MPI/DPI as specified |
| Documents | EN 10204 3.1 mill test certificate; 3.2 / third-party inspection when the order specifies; dimensional inspection report; IBR certification when specified |
Applications
- Heat exchanger shell and channel flanges
- Pump and compressor connections
- Equipment covers
- Lines needing confined gaskets and positive location
Technical data sheets
Dimensions & weights
FAQ
Male and Female Flange: common questions
What is the difference between large and small male and female facings?
Large M&F facings have a gasket contact area extending close to the bolt holes; small M&F facings have a narrower face. Both are dimensioned in ASME B16.5 and must be matched to the gasket.
Is a male and female flange the same as spigot and recess?
Yes, functionally. EN 1092-1 calls the male face Type E (spigot) and the female face Type F (recess). ASME B16.5 uses the terms large and small male and female.
Can a male face mate with a raised face flange?
No. The male face must fit into a female recess of matching dimensions. Interlocking facings are not interchangeable with raised face flanges, so both flanges of the joint must be ordered together.
What gasket is used with male and female flanges?
A flat ring gasket sized to the female recess, commonly compressed fibre, PTFE, graphite or metal jacketed. The gasket OD must suit the large or small female facing to seat correctly.
Need a size or grade not listed here?
Our engineering team manufactures against your drawing or datasheet, with dimensional sign-off before dispatch.
Send us your specificationTraceability
From mill heat to your site
- 01
Approved mill material
Received against the mill certificate; heat number registered.
- 02
Forging & machining
Heat number carried through every stage in our Indian works.
- 03
PMI, dimensional & NDT
Every lot inspected to the governing standard; TPI witness on request.
- 04
Stamped & certified dispatch
Hard-stamped pieces with EN 10204 3.1 / 3.2 certificates.
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