01076/05 GBReplaces 01076/02 GB

Hydraulic separator

series 548

series 548 threaded 548 flanged

Materials:- Separator body: epoxy resin coated steel epoxy resin coated steel- Air vent body: brass EN 12165 CW617N brass EN 12165 CW617N- Shut-off and drain valve body brass EN 12165 CW617N brass EN 12165 CW617N, chrome plated- Air vent hydraulic seal EPDM VITON- Air vent float PP stainless steel

Performance:- Max working pressure: 10 bar 10 bar- Temperature range: 0 110C 0 110C- Medium: water, glycol solutions non hazardous, therefore water, glycol solutions non hazardous, therefore

excluded from the guidelines of 67/548/EC Directive excluded from the guidelines of 67/548/EC Directive- Max percentage glycol: 30% 50%

Connections:- Separator: 1, 1 1/4, 1 1/2 F with union DN 50 - 65 - 80 - 100 - 125 - 150 flanged PN 16

to be coupled with counterflanges EN 1092-1- Front (thermometer pocket) 1/2 F -- Air vent relief - 3/8 F- Drain valve hose connection 1 1/4 F

Product range

Series 548 Threaded hydraulic separator with insulation Sizes 1, 1 1/4, 1 1/2 F with unionSeries 548 Flanged hydraulic separator with insulation Sizes DN 50, DN 65, DN 80, DN 100Series 548 Flanged hydraulic separator Sizes DN 50, DN 65, DN 80, DN 100, DN 125, DN 150

Technical specification

Function

This device consists of several different functional components,each of which meets specific requirements, typical of the circuitsused in heating and air-conditioning systems.

Hydraulic separatorTo keep connected hydraulic circuits totally independent fromeach other.

Dirt removerTo permit the separation and collection of any impurities presentin the circuits. Provided with a valved connection with dischargepiping.

Automatic air vent valveFor automatic venting of any air contained in the circuits.Provided with a valved connection for maintenance purposes.

Reference documentation

- Tech. Broch. 01031 Automatic air vent valve, series 501- Tech. Broch. 01054 Automatic air vent valve, series 5020

cert. n 0003ISO 9001

CALEFFI

When the secondary pump is off, there is no circulation in thesecondary circuit; the whole flow rate produced by the primarypump is by-passed through the separator.

With the hydraulic separator, it is thus possible to have a productioncircuit with a constant flow rate and a distribution circuit with a variable flow rate; these operating conditions are typical of modern heating andai r-condi t ion ingsystems.

Operating principe

When a single system contains a primary production circuit, with itsown pump, and a secondary user circuit, with one or moredistribution pumps, operating conditions may arise in the systemwhereby the pumps interact, creating abnormal variations in circuitflow rates and pressures.

The hydraulic separator creates a zone with a low pressure loss,which enables the primary and secondary circuits connected to it tobe hydraulically independent of each other; the flow in one circuitdoes not create a flow in the other if the pressure loss in thecommon section is negligible.

In this case, the flow rate in the respective circuits dependsexclusively on the flow rate characteristics of the pumps, preventingreciprocal influence caused by connection in series.Therefore, using a device with these characteristics means that theflow in the secondary circuit only circulates when the relevant pumpis on, permitting the system to meet the specific load requirementsat that time. Three possible hydraulic balance situations are shown below.

Dimensions

Gprimary = Gsecondary Gprimary > Gsecondary Gprimary < Gsecondary

Primary Secondary

Gp Gs

Primary Secondary

Gp Gs

Primary Secondary

Gp Gs

Gp Gs

primary secondary

DN 15088

ADN 50DN 65DN 80DN 100DN 125DN 150

B1 1/4"1 1/4"1 1/4"1 1/4"1 1/4"1 1/4"

D330330450450560560

C341341389389374374

E398398440440499499

F350350466470635635

FB

CD

EA

A1"

1 1/41 1/2

B225248282

C195225235

D220240260

E204214224

Code548052548062548082548102548120*548150*

Code548006548007548008

SEPARATORE IDRAULICOSerie 548

Tmax 120CPmax 10 bar

Tmax 105CPmax 10 bar

SizeVolume (l)

11,7

1 1/42,6

1 1/24,8

DN 5015

DN 6515

DN 8030

DN 10030

A

DE

C

B

AA

Tmax 120CPmax 10 bar

Tmax 105CPmax 10 bar

DN 12585

* without insulation

Weight (kg)

2,73,85,7

Weight (kg)

33364953100105

Technical specification of insulation for threaded versions

- Material: double density closed cell expanded PEX- Thickness: 20 mm- Density: - internal part: 30 kg/m3

- external part: 50 kg/m3

- Thermal conductivity (ISO 2581): - 0C: 0,038 W/(mK)- 40C: 0,045 W/(mK)

- Coefficient of resistance to the diffusion of vapour (DIN 52615):> 1.300- Temperature range: 0 100C- Reaction to fire (DIN 4102): class B2

Technical specification of insulation for flanged versionsto DN 100

Internal part- Material: rigid closed cell expanded polyurethane foam- Thickness: 60 mm- Density: 45 kg/m3

- Thermal conductivity (ISO 2581): 0,023 W/(mK)- Temperature range: 0 105C

External cover- Material:Alluminio grezzo goffrato- Thickness: 0,7 mm- Reaction to fire (DIN 4102): class 1

Head covers- Heat moulded material: PS

Construction details

Isolating the air vent valve

In flanged separators, the air vent isisolated manually, using a shut-off ballvalve. In threaded separators, however,the air vent body is automatically isolatedby the built-in valve, which closes whenthe air vent body is removed.

Dirt removing element

A vital function of the hydraulic separatoris carried out by the dirt removingelement inside the device. This makes itpossible to separate and collect anyimpurities which may be present in thesystem.

These impurities are removed by meansof the drain valve, which can beconnected to a discharge pipe, placedat the bottom of the separator.

Insulation

Hydraulic separators are available complete with a hot preformedinsulation shell. In the flanged series, up to DIN 100, the insulationis made of a shell in expanded polyurethane foam coeated with analuminium layer. In the threaded version the insulation is made of apre-formed shell in double density closed cell expanded PEX.This insulations ensures not only perfect heat insulation but also thetightness required to prevent atmospheric water vapour fromentering the unit. For these reasons, this type of insulation can alsobe used in cooling water circuits, as it prevents the formation ofcondensate on the surface of the valve body.

Hydraulic characteristics

The hydraulic separator should be sized according to the maximumflow rate value at the inlet. The selected design value must be thegreatest between the primary circuit and the secondary circuit.

Size Flow rate m3/h1 2,5

1 1/4 41 1/2 6

Size Flow rate m3/hDN 50 9DN 65 18DN 80 28DN 100 56DN 125 75DN 150 110

Application diagram

Shut-off valve

Check valve

Three-way mixing valve

Clock

Temperature controller

Pressure gauge

Series 548Hydraulic separator, female threaded connections with union, 1 (from 1 to 1 1/2). Epoxy resin coated steel body. Withinsulation. Temperature range 0 110C (0 100C with insulation). Maximum working pressure 10 bar. Supplied with:- Automatic air vent valve, 1/2 M connection. Brass body, chrome plated.- Shut-off cock for air vent. Brass body.- Drain cock. Hose connection. Brass body.- Hot preformed shell insulation in double density closed cell expanded PEX.

Series 548Hydraulic separator, flanged connections EN 1092-1 PN 16 DN 50 (from DN 50 to DN 100). Epoxy resin coated steel body.With insulation. Temperature range 0 110C (0 105C with insulation). Maximum working pressure 10 bar. Supplied with:

- Automatic air vent. 3/8 F outlet connection. Brass body.- Shut-off valve for air vent. Brass body. Chrome plated.- Drain valve. 1 1/4 F connection. Brass body. Chrome plated.- Rigid closed cell expanded polyurethane foam shell insulation with external embossed aluminium cover.

Series 548Hydraulic separator, flanged connections EN 1092-1 PN 16 DN 50 (from DN 50 to DN 150). Epoxy resin coated steel body.Temperature range 0 110C. Maximum working pressure 10 bar. Supplied with:- Automatic air vent. 3/8 F outlet connection. Brass body.- Shut-off valve for air vent. Brass body. Chrome plated.- Drain valve. 1 1/4 F connection. Brass body. Chrome plated.

SPECIFICATION SUMMARIES

We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice.

CALEFFI S.P.A. I 28010 FONTANETO DAGOGNA (NO) S.R. 229, N.25 TEL. +39 0322 8491 FAX +39 0322 863723 Http://www.caleffi.com E-mail: info@caleffi.it

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