Danfoss KVD 12, KVD 15, KVD Data sheet

Data Sheet

Receiver pressure regulator

Type KVD

KVD used to maintain constant and adequately high condensing and receiver pressure in plant

KVD is a modulating receiver pressure regulator. It opens on falling receiver pressure and bypasses hot gas to maintain the receiver pressure at the regulator setting (adjustable).

KVD and KVR form a regulating system, used to maintain constant and adequately high condensing and receiver pressure in plant with heat-recovery, and in refrigeration and air conditioning plant with air-cooled condensers.

Features

• Accurate, adjustable pressure regulation

• Wide capacity and operating range

• Pulsation damping design

• Stainless steel bellows

• Compact angle design for easy installation in any position

• “Hermetic” brazed construction

• 1⁄4 in. Schrader valve for pressure testing

• Available with flare and ODF solder connections

• Can be used as a relief valve from high pressure to suction side

• May be used in the following EX range: Category 3 (Zone 2)

AI246886497164en-001201

Receiver pressure regulator, Type KVD

Functions

Figure 1: Function for KVD

																																							1	Protective cap
																																							2	Gasket
																																							3	Setting screw
																																							4	Main spring
																																							5	Valve body
																																							6	Equalization bellows
																																							7	Valve plate
																																							8	Valve seat
																																							9	Damping device
																																							10	Pressure gauge connection
																																							11	Cap
																																							12	Gasket

The receiver pressure regulator KVD opens at a fall in pressure on the outlet side, i.e. when the pressure in the receiver falls below the set value.

KVD regulates only in dependence on the outlet pressure. Pressure variations on the inlet side of the regulator do not affect the degree of opening since KVD is equipped with an equalization bellows (6). This bellows has an effective area corresponding to that of the valve seat.

The KVD regulator is also equipped with an effective damping device (9) against pulsations which can normally arise in a refrigeration plant. The damping device helps to ensure long life for the regulator without impairing regulation accuracy.

© Danfoss | Climate Solutions | 2021.02

AI246886497164en-001201 | 2