Electrically operated expansion valves, type AKVA 10, 15 & 20
AKVA are electrically operated expansion valves designed for ammonia refrigerating plant.
The AKVA valves are normally controlled by a controller from Danfoss’ range of ADAP-KOOL® controllers.
The AKVA valves are supplied as a component programme, as follows:
* Separate valve
* Separate coil with terminal box or cable
* Spare parts in the form upper part, orifice and filter
The individual capacities are indicated with a number forming part of the type designation. The number represents the size of the orifice of the valve in question.
A valve with orifice 3 will for example be designated AKVA 10-3.
The orifice assembly is replaceable.
The AKVA 10 valves covers a capacity range from 4 kW to 100 kW (R 717) and are divided up into 8 capacity ranges.
The AKVA 10 valve bodies are made in stainless steel and have weld connections.
The AKVA 15 valves have flange connections. The valve covers a capacity range from
125 kW to 500 kW (R 717) and are divided up into 4 capacity ranges.
The AKVA 20 valves cover a capacity range
from 500 kW to 3150 kW (R 71 7) and are divided up into 5 capacity ranges.
The AKVA 20 valve has weld connections. The AKVA valves can be used for:
* Flooded evaporation (high/low pressure)
* Pump separators
* Direct expansion. See appendix.
If AKVA has to be used in chillers please contact Danfoss.
Features:
* For amonia (R71 7), R744, HCFC, HFC
* The valve requires no adjustment
* Wide regulation range
* Replaceable orifice assembly
* Wide range of coils for d.c. and a.c.
* Quick reaction in whole range of stated capacity.
* In some applications AKVA can be used both as expansion valve and solenoid valve
Approvals
* DEMKO, Denmark
* SETI, Finland
* SEV, Switzerland
* UL listed to U8.S. og Canadian standards (separate code. nos.)
* AKVA 20 are CE marked according to Pressure Equipment Directive 97/23
