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Materials
| Nº | Part | AISI-316L A4 | SuperDuplex AS | | 1 |
Body | AISI-316L (1.4404) | Superduplex (1.4410/ 1.4501) | | 2 |
Stem | AISI-316L (1.4404) | Superduplex (1.4410/ 1.4501) | | 3 |
Spring | Superduplex (1.4410/ 1.4501) | Superduplex (1.4410/ 1.4501) | | 4 |
Bonnet | AISI-316L (1.4404) | Superduplex (1.4410/ 1.4501) | | 5 |
Seat | EPDM | EPDM | | 6 |
Centering | Polyethylene | Polyethylene |
Special alloys
Among the wide range of alloys existing, TECVAL has selected these materials considered by our customers as most suitable, which we stock to ensure a quick and effective supply. Whether you need further information about our special alloys valves, please address your inquiry to our Technical Department.
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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 of valve and one option:
Wafer Type Check Valve VW-00 DN25 Class 600 Superduplex with NBR seat:
8250 B AS The reference required to place the order is 8250BAS . |
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Tests
100% tested in accordance to API STANDARD 598, each valve is tested to check the leakage in the seats. Upon request, the corresponding materials and test certificates can be delivered with the valve.
Packaging
All TECVAL valves are supplied packed in individual polyethilene airtight bags. End screw connections are protected with polyethilene caps. Everything is 100% recyclable.
Elastomers & Seats Seat (position 5) can be made of different materials (NBR, FPM & NEOPREN) upon request, considering the working conditions and fluid of the valve. For further information, please contact our Technical Department. |
