ADF-05 - TECVAL,S.L., 2024 all rights reserved.

Coupling for Manifold
Up to 420 bar (6000 PSI)

TECVAL ADF couplings for manifold are suitable for a quick and effective connection of the manifold to different devices: differential manometers, pressure transmitters, etc…


Quick and easy assembly.
Sealing guarantee.
Space reduction.
Strong anchoring.
Repeatable connections.
Low cost.
Technical data
Max. Pressure Up to 420 bar (6000 PSI)
Temperatures -20ºC/400ºC (-4ºF/752ºF)
Dimensions 1/4"x1/4" 1/2"x1/4" 1/2"x1/2"
Orifice Size 6.5 8 8
Order codes

* Dimensions in mm
NÂșPartAISI-316L  A4 Duplex  AD SuperDuplex  AS Special alloys 
1 BodyAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
2 NutAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
3 Front ringAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
4 Back ringAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
5 Male endAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
Special alloys

Among the wide range of alloys existing, TECVAL has selected those considered by our customers as most suitable, which we stock to ensure a quick and effective supply:

AISI-316Ti (1.4571)  A6  , AISI-904L (1.4539)  A9  , Alloy 400 (2.4360)  MO  , Alloy 625 (2.4856)  IN  , Alloy 825 (2.4858)  CO  , 254-SMO (1.4547)  AV  , Titanium Gr.2 (3.7034)  TI  , Hastelloy C-276 (2.4819)  HA  .

Whether you do not find the required alloy or need further information about our special alloys valves and fittings, please address your inquiry to our Technical Department. 



Ordering information

References are formed by three parts:

 Valve Code 
Look for it in the order codes chart on the previous page.
..  Option/s 
-If required, add the code/s from the options section on the previous page (in alphabetical order)
...  Material 
-Look for the code on the materials chart.

An example to place order correctly:


Coupling ADF 1/2" x 1/4" AISI-316L:
 3000   A4  The reference to place the order is 3000A4.


Assembly procedure

This component is designed to ease the assembly of the manifold to the differencial manometer or transmitter (54mm; 2 1/8" distance between connections). First, thread the male end (5) to the transmitter inlet, and thread the sets of male end 1/2" NPT, rings and nut to the manifold outlets. Then, bring face to face and insert the ends into the nuts. Check both parts are parallel. Finally, tighten the nut manually, fasten the body of the connector with a spanner, and with another spanner tighten the nut again 1 turn and 1/4. This will result in a perfectly sealed and safe connection between the manifold and the differential transmitter.


All TECVAL ADF couplings are supplied packed in polyethilene airtight bags. Everything is 100% recyclable.

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