KVP Valves Technical Data
| Refrigerants | R22, R1270*, R134a, R290*, R404A, R407A, R407C, R407F, R448A, R449A, R450A, R452A, R507A, R513A, R600*, R600a* * KVP 12 – KVP 22 only |
| Regulating range | 0 – 5.5 bar (0 – 79 psig) |
| Factory setting = 2 bar (29 psig) |
| Maximum working pressure | PS/MWP PS = 18 bar (261 psig) |
| Maximum test pressure | Pe = PS × 1.1 = 19.8 bar (287 psig) |
| Medium temperature range | -45 – 130 °C |
| Maximum P-band | KVP 12 – 22: 1.7 bar (24.6 psig) |
| KVP 28 – 35: 2.8 bar (40.6 psig) |
| Kv-value 1) with offset 0.6 bar (8.7 psig) | KVP 12 – 22: 1.7 m3 / h |
| KVP 28 – 35: 2.8 m3 / h |
| Kv-value 1) with maximum P-band | KVP 12 – 22: 2.5 m3 / h |
| KVP 28 – 35: 8.0 m3 / h |
1) The Kv value is the flow of water in [m3 / h] at a pressure drop across valve of 1 bar, ρ = 1000 kg / m3.
This product (KVP 12 – KVP 22) is evaluated for R290, R600, R600a and R1270 by ignition source assessment
in accordance with standard EN13463-1.
For complete list of approved refrigerants, visit www.products.danfoss.com and search for individual code numbers, where refrigerants are listed as part of technical data.
Nominal Capacity
Danfoss
Code
Number | Valve
Type | Connection Type | Rated capacity 1) [kW] |
| R22 | R134a | R404A/R507 | R407C |
| 034L0021 | KVP12 | 1/2 Flare | 4.0 | 2.8 | 3.6 | 3.7 |
1) Rated capacity is the regulator capacity at
evaporating temperature te = -10 °C
condensing temperature tc = +25°C
pressure drop in regulator Δp = 0.2 bar (2.9 psig)
offset = 0.6 bar (8.7 psig)
To select the product for other conditions or refrigerants, use Danfoss Coolselector®2.
The connection dimensions chosen must not be too small, as gas velocities in excess of 40 m / s at the inlet of the regulator can result in flow noise.