Norgren B38SS Datasheet
● Compact instrument units with high performance
● Stable regulation with temperature compensation
● Excellent flow and regulation characteristics
● Panel Mounting facility
● Designed for use in corrosive environments
B38
Filter/Regulator Stainless Steel Model
1/4 or 1/2” PTF
● Metallic parts meet NACEStandard MR-01-75
*
● Applications include marine environments, oil and
gas production, chemical and food processing,
medical analysis
● Relieving or non relieving models. Relieving models
allow reduction of outlet pressure even when the
system is dead-ended
* National Association of Corrosion Engineers (NACE) MR-01-75 defines requirements for
sulphide stress cracking resistant materials used in well-head and other corrosive environments.
Ordering Information. Models listed are relieving type with manual drain, 5µm element, and PTF threads. A gauge is not included.
Outlet pressure range
Port Size Model Number psig (bar) Flow** scfm (dm3/s) Weight kg (lbs)
1/4” PTF B38-240-B1KA 4 to 100 (0.3 to 7) 15 (7) 3.11 (1.4)
1/2” PTF B38-440-M1LA 4 to 125 (0.3 to 9) 106 (50) 4.75 (2.2)
** Typical flow with 175 psig (12 bar) inlet pressure, 115 psig (8 bar) set pressure and 15 psig (1 bar) droop from set.
Alternative Models
Port Size Substitute
1/4” PTF 2
1/2” PTF 4
Materials Substitute
Stainless steel, nitrile elastomers 4
Stainless steel, Viton elastomers 5 †
Diaphragm Substitute
Relieving 0
Non relieving 1
Relieving, bracket and nut 2
Non relieving, bracket and nut 3
Relieving with nut 4
Non relieving with nut 5
Relieving with handwheel and nut 6
Non relieving with handwheel and nut 7
Relieving with handwheel, bracket and nut 8
Non relieving with handwheel, bracket and nut 9
* 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.
† 1/4” ported units only.
†† 1/2” ported units only.
83
B
★ ★ ★ ★ ★ ★ ★
--
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel D
API.LP.INT K
Outlet Pressure Adjustment Ranges* Substitute
0.6 to 30 psig (0.04 to 2 bar) C
1 to 60 psig (0.07 to 4 bar) F
3.6 to 100 psig (0.25 to 7 bar) K †
4 to 125 psig (0.3 to 9 bar) L ††
7.2 to 150 psig (0.5 to 10 bar) M †
Element Substitute
5 µm 1
25 µm 2
Bowl/Drain Substitute
Long bowl with automatic drain A
Short bowl with manual drain B
Long bowl with manual drain M
See Section ALE-24 for Accessories
ISO Symbols
ALE-16-12
Automatic Drain, Relieving Automatic Drain, Non RelievingManual Drain, Relieving Manual Drain, Non Relieving
Littleton, CO USA Phone 303-794-2611 www.norgren.com
INLET PRESSURE - 175 psig (12 bar g)
FLOW CHARACTERISTICS -
PORT SIZE: 1/4"
0 4 8 12 16 20 dm3/s
AIR FLOW
0 8 16 24 32 40 48 scfm
OUTLET PRESSURE
16
12
8
4
0
bar g
200
160
120
80
40
0
psig
B38 Stainless Steel Filter/Regulator
Technical Data
Fluid: Compressed air
Maximum pressure
Manual drain: 450 psig (31 bar)
Automatic drain: 250 psig (17 bar)
Operating temperature: -40° to 175°F (-40° to 80°C) *
* Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).
Particle removal: 5 µm or 25 µm filter element
Air quality: Within ISO 8573-1, Class 3 and Class 5 (particulates)
Typical flow with 175 psig (12 bar) inlet pressure, 115 psig (8 bar) set pressure and
a droop of 15 psig (1.0 bar) from set
1/4": 15 scfm (7 dm
1/2": 106 scfm (50 dm3/s)
Automatic drain connection: Will fit 1/8-27 and 1/8-28 pipe thread
Automatic drain operating conditions (float operated)
Bowl pressure required to close drain: Greater than 5 psig (0.3 bar)
Bowl pressure required to open drain: Less than 3 psig (0.2 bar)
Minimum air flow required to close drain 2 scfm (1 dm
Nominal bowl size
Short bowl with manual drain: 25 ml (1 fluid ounce)
Long bowl with manual drain: 3 fluid ounce (90 ml)
Long bowl with automatic drain: 1 fluid ounce (25 ml)
Gauge ports:
1/4" PTF
Relief port:
1/8" PTF
Materials (standard option)
Body: Stainless steel
Bonnet: Stainless steel
Bowl: Stainless steel
Adjusting screw: Stainless steel
Elements
5 µm & 25 µm: High density polyethylene
1/4" only 5 µm: Ceramic pyrolith
Elastomeric materials: Synthetic rubber
All Dimensions in Inches (mm)
2.52 (64)
(1.26 (32)
2.52 (64)
0.51 (13)
∅1.65 (42)
5.32 (135)**
1/4” Port Size
Manual Drain, Short Bowl
** Minimum clearance required to remove bowl.
1/8" PTF
2.09 (53)
3.23 (82)
3
/s)
2.88 (73)
1.26 (32)
2.95 (75)
2.52 (64)
0.51 (13)
∅1.65 (42)
5.71 (194)
7.28 (185)**
1/4” Port Size
Automatic Drain, Long Bowl
2.95 (75)
∅1.65 (42)
2.09 (53)
9.61 (244)
5.20 (132)
8.01 (205)**
Manual Drain, Long Bowl
3
/s)
Panel mounting hole diameter: 1.65" (42 mm)
Maximum panel thickness: 0.24" (6 mm)
∅1.65 (42)
2.37 (62)
10.75 (273)
5.98 (152)
8.47 (215)**
1/2” Port Size
1/2” Port Size
Automatic Drain, Long Bowl
Typical Performance Characteristics
FLOW CHARACTERISTICS -
psig
bar g
16
200
12
160
120
8
OUTLET PRESSURE
80
4
40
0
0
0 40 80 120 160 200 240 scfm
0 20 40 60 80 100 dm3/s
INLET PRESSURE - 175 psig (12 bar g)
PORT SIZE: 1/2"
AIR FLOW
Service Kits (standard option)
1/4" Filter
Item Part number
5 µm B38-100A (5)
25 µm B38-100S (25)
1/2" Filter
Item Part number
5 µm 2787-43
25 µm 2787-44
Filter service kits include element, seals and screws.
Automatic Drain Assembly
Item Part number
Automatic Drain Assembly 3000-90
2.37 (62)
6.38 (162)
1/4" Regulator
Item Type Part number
Relieving R38-100R
Non relieving R38-100NR
Relieving R38-101R
Non relieving R38-101NR
Relieving R38-102R
Non relieving R38-102NR
11.14 (283)
30 psig spring
60 & 100 psig
spring
150 psig spring
1/2" Regulator
Item Type Part number
All available Relieving 2787-41
spring ranges Non relieving 2787-42
Regulator service kits include diaphragm assembly,
o-ring,valve, valve spring and 8 pan head screws.
Littleton, CO USA Phone 303-794-2611 www.norgren.com
ALE-16-13
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