Danfoss VZL 2, VZL 3, VZL 4 Data sheet

Data sheet

VZL valve - 2/3/4-way

Description

Stem

extension

plug

VZL 4VZL 3VZL 2

Ordering

VZL valves provide a high quality, cost effective solution for the control of hot and/or chilled water for fan coil units, small reheaters, and recoolers in temperature control systems.

The valves are used in combination with:

- AMV(E) 130(H)/140(H) ABNM A5 with extension plug;

- AMV(E) 13 (SU) and TWA-ZL actuators.

Note: TWA-ZL thermal a ctuator does not close po rt B.

In case that stem e xtension plug is not used tog ether with AMV(E) 130(H)/140(H) dea d zone in valve close position wil l occur.

2-way valve VZL 2

Picture

DN k

(mm) (m3/h) (bar) Flat End Conex

0.25 2.5 065Z2070 065Z2040

0.4 2.5 065Z2071 065Z2041

0.63 2.5 065Z2072 065Z2042

1.0 2.0 065Z2073 065Z2043

1.6 2.0 065Z2074 065Z2044

2.5 1.0 065Z2075 065Z2045

3.5 1.0 065Z2076 065Z2046

Main data:

• DN 15, 20

• kVS 0.25-3.5 m3/h

• PN 16

• Temperature:

- Circ. water / glycolic water up to 50 %: 2 … 120 °C

• Reduced kVS on B port (VZL 3 & VZL 4 only)

• Linear characteristic

• Linear bypass on 3 and 4 port valves

• Valves are supplied with screwed plastic cover for manual operation

• Connections: flat end or conex

• Water quality acc. to VDI 2035 requirements

max. ∆p Code No.

3-way valve VZL 3

Picture

(mm)

kVS (A - AB) kVS (B - AB)

m3/h

0.25 0.25 2.5 065Z2080

0.4 0. 25 2.5 065Z2081

0.63 0.40 2.5 065Z20 82

1.0 0.63 2.0 065Z2083

1.6 1.0 2.0 065Z 2084

2.5 1.6 1. 0 065Z2085

3.5 2.5 1.0 065Z2086

max. ∆p Code No.

(bar) Flat End

Data sheet VZL valve

Ordering (continued)

Technical data

4-way valve VZL 4

Picture

(mm)

(A - AB) k

0.25 0.25 2.5 065Z2090 065Z2060

0.4 0.25 2.5 065Z2091 065Z2061

0.63 0.4 2.5 065Z2092 065Z2062

1.0 0.63 2.0 065Z 2093 065Z2063

1.6 1.0 2.0 065Z2094 065Z2064

2.5 1.6 1.0 065Z2095 065Z2065

3.5 2.5 1.0 065Z2096 065Z2066

m3/h

(B - AB)

max. Δp

(bar)

Code No.

Flat End Conex

Accessories

Typ e Pipe size DN Description Code No.

Tailpieces with external thread

Tailpieces for soldering

Stuffing box 065F0006

Spindle ex tension adapter, 2 mm (5 pieces) 003Z0249

Control characteristic Linear

Control range min. 30:1

Leakage loss, closed valve

Medium Circulation water / Glycolic water up to 50 %

Medium temperature °C 2 … 120

Max. operating pressure bar 16

Stroke mm 2.8

Connection External thread (flat connection (MS 58) or conex)

Materials

Body Brass CuZn40Pb2

Seat cone and stem Brass CuZn39Pb3

Stuffing box EPDM

R /” 15

R ½” 20 003H6902

12 m m 15

15 mm 20 06 5Z7017

Consist of 2 union nuts, 2 tailpieces and 2 gaskets (Ms 58)

Consist of 2 union nuts, 2 solder bushes and 2 gaskets (Ms 58)

A - AB ≤ 0.05 % of k

B - AB ≤ 1 % of k

065Z7015

065 Z7016

Pressure temperature diagram

Disposal

PN 16

CuZn4 0Pb2

Maximum allowed operating pressure as a function of medium temperature (according to EN1092-3)

The valve must be dismantled and the elements sorted into various material groups before disposal.

Data sheet VZL valve

Installation

AMV(E) 130/140,

AMV(E) 130H/140H

AMV(E) 13 (SU)

Valve mounting

Before valve mounting the pipes have to be cleaned and free from abrasion. Valve must be mounted according to flow direction as indicated on valve body. Mechanical loads of the valve body caused by the pipes are not allowed. Valve should be free of vibrations as well.

Application schemes for 3-way and 4-way mixing valves

3-way and 4-way valves are mixing valves meaning that A and B ports are inlet ports, and AB port is outlet port (f ig. 1). In case valve should be used as diverting valve it is a solution to install valve in return pipe (f ig. 2).

To prevent damages, starting max. p must not exceed 1 bar for DN 20 and 2/2.5 bar for DN 15, when installing the valve.

TWA -ZL ABNM-A5

Installation of the valve with the actuator is allowed in horizontal position or upwards. Installation downwards is not allowed.

Fig. 1 Mixing valve used in mixing application

Note: Install a strainer upstream of the valve (e.g. Dan foss FVR/FV F)

Fig. 2 Mixing valve used in diverting application

AMV(E)

FVR/FVF

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