Pressure reducing valve TLV COS-3 / COS-16

Pressure reducing valve TLV COS3COS16
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  • Manufacturer: TLV (Japan)
  • Material: ductile iron, stainless steel
  • Action type: pilot operated
  • Critical case parameters (not operating parameters): maximum pressure (barg) PMA: 21 (GGG40.3, CF8) maximum allowable temperature (°C) TMA: 220 (GGG40.3, CF8)
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  • Specifications
  • Description
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Model COS-3 COS-16
Body material Ductile iron (GGG40.3) St. steel (A351Gr.CF8) (1.4312) Ductile iron (GGG40.3) St. steel (A351Gr.CF8) (1.4312)
Accession Flanged Flanged Flanged Flanged
The size DN20, 25, 40, 50 DN15, 20, 25, 40, 50, 65 *, 80 *, 100 DN15, 20, 25, 40, 50
Max. operating pressure (barg) PMO 3 16
Max. operating temperature (° С) TMO 220 220
Inlet pressure (barg) 1-3 2-16
Setting pressure (all conditions are met) 0.1 - 1.5 barg In the range 10 - 84% of the inlet pressure, but with a minimum pressure of 0.3 bar.
- Differential pressure 0.7 - 8.5 barg
Minimum consumption 5% of the estimated consumption 5% of design flow (for valves DN65 - DN150: 10%)

* Flanged COS-16 (DIN): steel DN65, DN80 on request

Direct acting pressure reducing valve with spherical piston.

The technologically advanced pressure reducing valve with integrated condensate separator and integrated steam trap provides precise pressure control and steam preparation for improved steam utilization.

  1. Saving space during installation, simplifying the piping and maintenance work.
  2. The self-positioning and shock-absorbing spherical piston and the special design of the pilot regulator ensure accurate pressure maintenance even under adverse operating conditions.
  3. An integral cyclone separator with 98% efficiency and a free-float steam trap ensure high outlet steam quality.
  4. Most of the internal parts of the movement are made of stainless steel for a long service life.
  5. Pilot and main filters have a wide surface area for longer service intervals.
  6. The internal impulse line eliminates the need for the external one.
  7. COS-16 dampers from DN65 and above have a built-in silencer.


  • Pickup from a warehouse in Kiev
  • New Mail - at the rates of the delivery service
  • SAT - at the rates of the delivery service
  • Deliveri - at the rates of the delivery service


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Pressure reducing valve TLV COS3COS16

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