Alchem Process Ltd
Unit 4 Church Road Ind Estate,
Gorslas, Llanelli, Carmarthenshire,
SA14 7NN.
Tel: 00 44 (0) 1269 841 324

Clamp Fittings, Adaptors & Hose Tails

AA Connect - Aseptic Tank Nozzles

The AA “Aseptic Connect” range of tank nozzles was developed to allow a flexible connection method for a series of process accessories including; sight glasses; clamp fittings; instruments & sensors: valves and sprayballs to be installed and removed quickly from the tank wall.


The nozzle is welded into the vessel and should to be installed flush with the tank wall in a procedure documented in the ASME BPE standard.


The system’s flexibility has seen its potential applications increase to include Jacketed Vessels, Angled Vessel Housings, Large Clamp Blanks for vessel lids and finally the Aseptic In-Line Housings.


Originally the diametric drillings in the pad flange were used to drain off samples of the product but this method in no longer recommended although the drillings have remained part of the product.


Aseptic sample valves are advised for taking any process samples.


Pad flange - ASTM A479 / A182 AISI 316L/1.4404 SS
Lock rings - ASTM A479 / A182 AISI 316L/1.4404 SS
Fasteners - ASTM A193 B8 AISI 304 / 1.4301 SS
Cap Nuts - ASTM A194 8 AISI 304 / 1.4301 SS


A wide range of non-standard materials is also available for the pad flange including:


  • AISI 316Ti Wn 1.4571
  • AISI 316L (BN-2) Wn 1.4435
  • 6Mo materials & AL6-XN, 904L & 254 SMO
  • Duplex alloys including SAF2507 UNS 32750 / UNS32760
  • Alloy C22 and C276
  • Nickel Alloys such as Alloy 400
  • Titanium