Norgren B38-240-B2KA - Manual

N/en/en 8.530.320.01 11/12 Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document.
B38
Precision filter/regulator (stainless steel)
1/4 PTF
Designed for use in corrosive enviroments
Metallic parts meet NACE* Standard MR-01-75
Applications include marine enviroments,
oil and gas production, chemical and food
processing, medical analysis
Model for precision regulation and high flow
* National Association of Corrosion Engineers – recognised oil-field recommendation for
resistance to sulphide stress cracking common in well-head and other corrosive environments
Medium:
Compressed air only
Maximum inlet pressure:
31 bar (manual drain)
17 bar (246 psi)(autodrain)
Outlet pressure range:
0,04 ... 2 bar, 0,07 ... 4 bar
0,25 ... 7 bar, 0,4 ...10 bar
(0,58 ... 29 psi, 1 ... 58 psi
3,6 ... 101 psi, 5,8 ...145 psi)
Element:
5 or 25 μm
Port sizes:
1/4 PTF
1/4 PTF (gauge), 1/8 NPT (relief)
1/4 PTF (automatic drain)
Drain:
Manual or automatic
Automatic drain operation
conditions (float operated):
To close: > 0,3 bar (4,35 psi)
To open: < 0,2 bar (2,9 psi)
Minimum air flow required to
close 1 dm
3 /s
Fluid/Ambient temperature:
-40 ... +80°C (-40 ... +176°F)
Air supply must be dry enough
to avoid ice formation at
temperatures below +2°C(+35°F).
Technical features
Materials:
Body, bowl, bonnet & adjusting
screw: stainless steel
Filter element: High density
polyethylene (25 μm),
stainless steel (5 μm)
Elastomers: Synthetic rubber
Technical data, standard model, relieving and panel nut
Symbol Port size Outlet
pressure (bar)
Element
(μm)
Flow *
(dm 3 /s)
Drain Weight
(kg)
Model
1/4 PTF 0,25 ... 7 25 8 Manual 1,4 B38-244-B2KA
1/4 PTF 0,07 ... 4 25 8 Manual 1,4 B38-244-B2FA
1/4 PTF 0,07 ... 4 25 8 Automatic 1,6 B38-244-A2FA
* Typical flow with 7 bar inlet pressure, 1 bar set pressure and 0,05 bar drop from set.
B38-24˙-˙˙˙A Option selector
Diaphragm & mounting Substitute
Relieving 0
Non-relieving 1
Relieving with neck mounting
bracket
2
Non-relieving with neck mounting
bracket
3
Relieving with panel nut 4
Non-relieving with panel nut 5
Drain Substitute
Automatic - long bowl A
Manual - short bowl B
Manual - long bowl M
Outlet pressure adjustment
ranges (bar)*
Substitute
0,04 ... 2 C
0,07 ... 4 F
0,25 ... 7 K
0,4 ... 10 M
Element Substitute
5 µm 1
25 µm 2
* Outlet pressure can be adjusted to
pressures in excess of, and less than,
those specified. Do not use these units
to control pressures outside of the
specified ranges.