Our world of Pipe Equipment

There is no question about it, pipe equipment is absolutely necessary for the construction and operation of complex pipeline systems. rff also provides you with such standardised  and special parts.

Pipe equipment includes pipe clamps, U-bolts, pressed collars, heads, ellipsoidal heads, weld-in elbows, branch saddles as well as bolts, nuts and gaskets for flange connections.

With regard to threaded fittings, our stock range includes not only threaded steel fittings but also malleable fittings. But rff offers you even more: For you we also stock high pressure fittings and outlets which are used especially in the ASME field.

You can rely on us to provide strong connections for anything involving pipes, flanges, elbows and butt weld fittings as well as pipe equipment

In this context, please also refer to

 

High pressure fittings in acc. with ASME / ASTM

Types and Standards

Design in acc. with
Forged Steel Fitings ASME B 16.11 / BS 3799
Unions MSS SP-83 / BS 3799
Swage Nippels MSS SP-95
Pipe Nippels ASME B 36.10 / 36.19
Branch Outlet Fittings  

Pressure Classes

  • Classes 2000 | 3000 | 6000 | 9000

Designs

  • Socket Weld (SW) / Threaded (NPT)

Wall thicknesses

  • All schedules

Surfaces

  • Black, galvanised as well as hot dip galvanised

Dimensions

  • 1/4” to 4”

Material Grades

  • A/SA 105/C21
  • A/SA 182 Gr. F5, F11, F12, F22, F91
  • A/SA 350 Gr. LF2, W/TStE 355
  • A/SA 182 Gr. F304/L, F316/L, F321/H
  • 1.4541, 1.4571
  • F53 (Superduplex), F51 (Duplex)

 

Nuts and bolts in acc. with DIN ISO / ASME / ASTM

Types and Standards

Design in acc. with
Bolts DIN EN ISO 4014, 4016 and 4017
Nuts DIN EN ISO 4032 and 4034
Stud Bolts DIN 2510, ASME B 16.5 / 18.2.2

 

Dimensions

  • For all standard flange connections

Material Grades

  • 4.6, Grade 5
  • 24 CrMo 5 and Ck 35 in acc. with DIN 17240 / DIN EN 10269
  • V4A, V2A, A2-70, A4-70
  • 1.4301, 1.4401, 1.4541, 1.4571 in acc. with DIN 17440 / DIN EN 10269
  • ASTM A 193 Gr. B7 for Stud Bolts
  • ASTM A 194 Gr. 2H for Nuts
  • Other materials to customer specification

 

Gaskets in acc. with DIN EN / ASME / ASTM

Types and Standards

Flat gaskets in accordance with DIN EN 1514-1

Type

For flanges

Formally DIN

IBC

with / without raised faces

2690

TG

with groove / tongue

2691

SR

with male-female facing

2692

Gaskets in accordance with ASME standards

B 16.20

Metallic material RTJ-gaskets

B 16.21

Non-metallic material gaskets

Material Grades

  • Hecker Centellen
  • KLINGERSIL
  • Rubber
  • Carbon steel
  • Stainless steel
  • Soft-Iron / Pure-Iron
  • StW24

Dimensions

  • For all standard flanges

 

Standard and special parts

Types and Standards

Design in acc. with DIN
Pipe clamps 3567
U-Bolts 3570
Pressed collars similar to 2642
Heads 28011
Ellipsoidal heads 28013
Weld in Elbows similar to 2619
Branch Saddles similar to 2618
Malleable Fittings EN 10242
Threaded Steel Fittings EN 10241
Pipe Couplings  
Welded Constructuions, e. g. Headers

Material Grades

  • Non Alloyed steels - P235TR1 / St 37.0
  • Non Alloyed heat resistant steels - P250GH / C22.8
  • Alloyed heat resistant steels - 16Mo3, 13CrMo4-5
  • Low temperature steels - P215NL
  • Fine grained steels - L290NB, L360NB
  • Stainless steels - 1.4541, 1.4571
rff – Strongly connected.