Overview of Primary Product

CHILLER
VENT
VENT
VENT
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 North America, Inc.
3883 W. Milwaukee Road
Milwaukee, WI 53208
Tel: [phone] · Fax: [phone]
[e-mail] · www.caleffi.com
© Copyright 2018 Caleffi North America, Inc.
SPECIFICATION SUMMARIES
Application diagram
DISCAL
®
551 series – Compact
Air separator in brass complete with brass automatic air vent containing pinned float. Connections for horizontal pipes, 3/4" NPT female threads or 3/4"
sweat. Brass body. Peroxide-cured EPDM seals. 304 stainless steel internal mesh element. PP float. Stainless steel float linkages. Stainless steel float
guide pin. Bottom 1/2" NPT female thread for drain. Models available with pre-installed service check valve. Maximum working pressure 150 psi (10 bar),
Temperature range 32 to 250°F (0 to 120°C). Glycol maximum 50%. Air separation efficiency: 100% removal to micro-bubble level.
DISCAL
®
551 series
Air separator in brass complete with brass automatic air vent containing pinned float. Connections for horizontal pipes, 3/4" to 2" NPT female threads,
1" to 2" sweat and 1”, 1-¼” integral press. Brass body. Peroxide-cured EPDM seals. Glass reinforced nylon PA66G30 internal mesh element. PP float.
Stainless steel float linkages. Stainless steel float guide pin. Bottom 1/2" NPT female thread for drain. Models available with pre-installed service check
valve. Maximum working pressure 150 psi (10 bar), Temperature range 32 to 250°F (0 to 120°C). Glycol maximum 50%. Air separation efficiency: 100%
removal to micro-bubble level. Provide with insulation shell, code CBN551 series.
DISCAL
®
5517 series - Rotating collar
Air separator in brass complete with brass automatic air vent containing pinned float. Connections for horizontal and vertical pipes, 3/4" to 1" sweat,
press and NPT male thread with union nuts. Brass body. Peroxide-cured EPDM seals. 304 stainless steel internal mesh element. PP float. Stainless steel
float linkages. Stainless steel float guide pin. Bottom 1/2" straight female thread for drain. Maximum working pressure 150 psi (10 bar). Temperature
range 32 to 250°F (0 to 120°C). Glycol maximum 50%. Air separation efficiency: 100% removal to micro-bubble level.
DISCAL
®
551 series - Flanged
Air separator in steel with brass side drain valve and automatic air vent with pinned float. Flanged ANSI B16.5 CLASS 150 RF connections from 2" to 6"
for horizontal pipes. Epoxy resin coated steel body. Peroxide-cured EPDM seal. 304 Stainless steel internal mesh element. PP float. Stainless steel float
linkages. Stainless steel float guide pin. Bottom 1" NPT male thread for drain and side drain port supplied with integral brass shutoff valve, code 538402
FD, and ¾” garden hose connection. Provide with separately purchased brass drain ball valve, 1” NPT female with T handle, code NA39753. Maximum
working pressure 150 psi (10 bar). Vessel working temperature range 32 to 270°F (0 to 132°C). Glycol maximum 50%. Air separation efficiency: 100%
removal to micro-bubble level.
DISCAL
®
551 series - Flanged, ASME & CRN
Air separator in steel with brass side drain valve and automatic air vent with pinned float. Flanged ANSI B16.5 CLASS 150 RF connections from 2" to 12"
for horizontal pipes. Epoxy resin coated steel body. Peroxide-cured EPDM seal. 304 Stainless steel internal mesh element. PP float. Stainless steel float
linkages. Stainless steel float guide pin. Bottom 1" NPT male thread for drain, 2” to 6” separators, 2” NPT male thread for drain, 8” to 12” separators,
and side drain port supplied with integral brass shutoff valve, code 538402 FD, and ¾” garden hose connection. For separator size 8” to 12” only
thermometer pocket well on inlet/outlet flanges ½” NPT female. Provide with separately purchased brass drain ball valve, for 2” to 6” size separators 1”
NPT female with T handle, code NA39753. For 8” to 12” size separators 2” NPT female with lever handle, code NA59600, is supplied but not attached.
Maximum working pressure for 2" to 6" separators 150 psi (10 bar), for 8" to 12" separators 200 psi (14 bar). Vessel working temperature range 32 to
270°F (0 to 132°C). Glycol maximum 50%. Air separation efficiency: 100% removal to micro-bubble level. Designed and built in accordance with Section
VIII, Division 1 of the ASME Boiler and Pressure Vessel Code and tagged and registered with the National Board of Boiler and Pressure Vessel Inspector, and CRN
registered (pending for 12”), and stamped for 150 psi (10 bar) working pressure, with ASME U stamp.