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331
Union flat seat, ISO/EN U2

Malleable cast iron fittings are offered in black and hot dip galvanized version. Because of their durability, high mechanical stress and temperature resistance these fittings continuously enjoy great popularity.
The thread according to EN 10226-1 is an universal, standardised jointing technology and ensures a safe use in a broad field of application.
Additionally to the threaded fittings, a compression fitting made of malleable cast iron is available. This fitting, sold under the brand PRIMOFIT, offers a full end load capability and is produced with black or hot dip galvanized surface. It is the time-saving connection of steel-pipeds, PE-piped, lead-pipes and butt-weld steel pipes.


 
  • Supplied without sealing gaskets; b and z2 include the seal thickness as per table "Sealing Gasket Dimension".
  • 374 G ... refers to the thread size G according to ISO 228 of the union nut 374.

Technical Details

EN
 
Dim.
(inch)
 
374 G
(inch)
 
Measurements
 
Black
Code
 
Quantity
 
Add to Cart
1∕45∕8Measurements 770331102
3∕83∕4Measurements 770331103
1∕21Measurements 770331104
3∕41 1∕4Measurements 770331105
11 1∕2Measurements 770331106
1 1∕42Measurements 770331107
1 1∕22 1∕4Measurements 770331108
22 3∕4Measurements 770331109
-2 1∕23 1∕2Measurements 770331110
-34Measurements 770331111
EN
 
Dim.
(inch)
 
374 G
(inch)
 
Measurements
 
Galvanised
Code
 
Quantity
 
Add to Cart
1∕45∕8Measurements 770331202
3∕83∕4Measurements 770331203
1∕21Measurements 770331204
3∕41 1∕4Measurements 770331205
11 1∕2Measurements 770331206
1 1∕42Measurements 770331207
1 1∕22 1∕4Measurements 770331208
22 3∕4Measurements 770331209
-2 1∕23 1∕2Measurements 770331210
-34Measurements 770331211

Features

Advantages:
  • biggest assortment of all producers – cost reduction due to a minimum number of joints

  • corrosion retarding and reinforced (free outrunning) internal threads design for the most common articles
  • malleable cast iron of highest grade and drinking water friendly galvanizing with high purity zinc, conforming to DIN 50930 - 6
  • PRIMOFIT - Quick and easy assembly – low costs
  • PRIMOFIT - No threading of steel pipe required / no special tools or skills necessary
  • PRIMOFIT - Dismantling not required (before installation)

Fields of Application:
  • Cooling and air conditioning
  • Plant engineering (e.g. gas, emulsion and pressured air pipe work)
  • Construction of petrol stations (gas lines)
  • Mechanical engineering (e.g. oil, coolant and lubricant pipe work)

Standards:
  • ISO, EN

Documents

Product Catalog
Technical Catalogue 2015 - Malleable cast iron fittings.pdfPDF3.18 MBDownload
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