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Materials
| Nº | Part | Brass LA | Carbon Steel AC | AISI-316L A4 | Special alloys | | 1 |
Set screw | AISI-304 (1.4301) | AISI-304 (1.4301) | AISI-304 (1.4301) | AISI-304 (1.4301) | | 2 |
Handle washer | AISI-304 (1.4301) | AISI-304 (1.4301) | AISI-304 (1.4301) | AISI-304 (1.4301) | | 3 |
Handle wheel | Black painted aluminium | Black painted aluminium | Black painted aluminium | Black painted aluminium | | 4 |
Nut | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | AISI-316L (1.4404) | | 5 |
Gland | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | AISI-316L (1.4404) | | 6 |
Packing | P.T.F.E. | P.T.F.E. or Grafoil | P.T.F.E. or Grafoil | P.T.F.E. or Grafoil | | 7 |
Bonnet | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | Special alloy | | 8 |
Stem | AISI-316L (1.4404) | AISI-316L (1.4404) | AISI-316L (1.4404) | Special alloy | | 9 |
Body | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | Special alloy | | 10 |
Bridle | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | Special alloy | | 11 |
Cap | Brass (1.7660) | F-112 (1.1158) | AISI-316L (1.4404) | Special alloy | | 12 |
Joint | P.T.F.E. | P.T.F.E. | P.T.F.E. | P.T.F.E. |
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. Whether you do not find the required alloy or need further information about our exotic alloys valves and fittings, please address your inquiry to our Technical Department.
AISI-316Ti (1.4571) A6
AISI-904L (1.4539) A9
Duplex (1.4462) AD
SuperDuplex (1.4410/1.4501) AS
254-SMO (1.4547) AV
Titanium Gr.2 (3.7034) TI
Hastelloy C-276 (2.4819) HA |
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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. |
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Option/s
-If required, add the code/s from the options section on the previous page (in alphabetical order) |
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Material
-Look for the code on the materials chart. |
An example of valve and two options:
Needle valve CP-11 1/2"BSP AISI-316 with grafoil packing and bleed screw in outlet:
2204 GP A4 The reference to place the order is 2204GPA4 |
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Tests
100% tested in accordance to API STANDARD 598, each valve is tested to check the leakage in the seats and packing. 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, which include the general features of the valve. End screw connections are protected with polyethilene caps. Everything is 100% recyclable.
Maintenance Adjustment of the packing may be necessary during the working life of the valve. The operation consists of turning the nut (4) clockwise.
Valves with long no-working period may have a harder initial operating torque. |
