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 are 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

123456789101112Protective cap

Gasket

Setting screw

Main spring

Valve body

Equalization bellows

Valve plate

Valve seat

Damping device

Pressure gauge connection

Cap

Gasket

Receiver pressure regulator, Type KVD

Functions

Figure 1: Function for KVD

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

aect the degree of opening since KVD is equipped with an equalization bellows (6). This bellows has an

eective area corresponding to that of the valve seat.

The KVD regulator is also equipped with an eective 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.

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Features

Description

Refrigerants

R22, R134a, R290, R404A, R407A, R407C, R407F, R407H, R448A, R449A, R449B,
R450A, R452A, R454A, R454C, R455A, R507A, R513A, R515B, R516A, R600, R600a,
R1234ze(E), R1234yf, R1270

Regulating range

3 – 20 bar

Factory setting = 10 bar

Max. working pressure

PS / MWP = 28 bar

Max. test pressure

Pe = 31 bar

Medium temperature range

-45 – 130 °C

Type

Connection

NV1NV2H1H2H3B1B

2

C solder

øD

Net

weight

Flare

Solder ODF

[in.]

[mm]

[in.]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[Kg]

KVD 12

1⁄2121⁄2121924179996664411030

0.4

KVD 15

5⁄8165⁄8162424179996664411230

0.4

Receiver pressure regulator, Type KVD

Product specication

Technical data

Table 1: Technical data for KVD

This product is evaluated for R290, R454A, R454C, R455A, R600, R600a, R1234ze(E), R1234yf, R1270 by ignition
source assessment in accordance with standard EN ISO80079-36. Flare connections are only approved for A1 and
A2L refrigerants.

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.

Dimensions and Weight

Figure 2: Dimensions for KVD

Table 2: Dimensions and Weight for KVD

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Type

kv value

(1)

Flare connection

(2)

Code no.

Solder connection

Code no.

[m3 / h]

[in]

[mm]

[in]

[mm]

KVD 12

1.75

1

⁄2

12

034L0171

1

⁄2

–

034L0173

1.75––––12034L0176

KVD 15

1.75

5

⁄8

16

034L0172

5

⁄8

16

034L0177

Receiver pressure regulator, Type KVD

Ordering

Figure 3: Ordering for type KVD 12 Figure 4: Ordering for type KVD 15

Table 3: Ordering for type KVD

(1)

(1)

The kv value is the ow of water in [m3/h] at a pressure drop across valve of 1 bar, ρ = 1000 kg/m

The kv value is the ow of water in [m3/h] at a pressure drop across valve of 1 bar, ρ = 1000 kg/m

(2)

(2)

KVD is supplied without are nuts. Separate are nuts can be supplied:

KVD is supplied without are nuts. Separate are nuts can be supplied:
½ in / 12 mm, code no. 011L1103,

½ in / 12 mm, code no. 011L1103,
½ in / 16 mm, code no. 011L1167.

½ in / 16 mm, code no. 011L1167.

3

3

The connection dimensions chosen must not be too small, since gas velocities in excess of 40 m/s at the inlet of the
regulator can give ow noise.

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Document name

Document type

Document topic

Approval authority

RU Д-DK.БЛ08.В.00191_18

EAC Declaration

Machinery & Equipment

EAC

089.D.00188-17

UA Declaration

PED

LLC CDC EURO TYSK

TR-089.0993-17

Pressure - Safety Certicate

PED

LLC CDC EURO TYSK

Receiver pressure regulator, Type KVD

Certicates, declarations and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.

Table 4: Certicates, declarations and approvals

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