Range; Gauge (Lasd); Fluid Pressure Gauge; Technical Data - Graco 238890 Instructions-Parts List Manual

Model 238890
spring operated, with

fluid pressure gauge

M d l 238889 Model 238889
spring operated, with
EZ Flush plug

Maximum fluid

6000 psi

inlet pressure

(41 MPa, 414 bar)

Regulated fluid 500–3000 psi
outlet pressure (3.4–21 MPa,

range

34–207 bar)

Maximum inbound

––

air pressure

Fluid inlet/outlet 3/8 npt(f)
size
Gauge port size 1/4 npt(f)
Fluid pressure 0–3000 psi
gauge (Models (0–21 MPa,
238890, 238892, 0–207 bar)
and 238894)
Maximum flow 2 gpm (7.6 lpm)
(in 65 cp material)
Maximum fluid up to 15,000 cp
viscosity
Maximum operat- 120_ F (50_ C)
ing temperature
Weight (with gauge) 7.0 lb (3.2 kg)
Fluid diaphragms PTFE with TPE
backing
Wetted parts (all 304, 316, 17–4 passivated SST, nickel– and cobalt–bound tungsten carbide, PTFE for all
models) models; ceramic for model 248090, 244734, and 255072 only.
Adjustment tool 6 mm hex wrench
(spring-operated
models)
Air Requirements for Air-Operated Regulators
(Models 238893, 238894, 248090, and 255072)
The following table shows the approximate air pressure needed to regulate the air-operated regulator to a given
fluid outlet pressure.
Air Pressure
psi
28
49
70
90
100
20 308647

Technical Data

Model 238892
spring operated, with
fluid pressure gauge
Model 238891 M d l 238891
spring operated, with
EZ Flush plug
6000 psi
(41 MPa, 414 bar)
3000–5000 psi
(21–34 MPa,
207–345 bar)
––
3/8 npt(f)
1/4 npt(f)
0–5000 psi
(0–34 MPa,
0–345 bar)
2 gpm (7.6 lpm)
up to 15,000 cp
120_ F (50_ C)
7.0 lb (3.2 kg)
PTFE with TPE
backing
6 mm hex wrench
Models 238894, 248090,
and 255072
MPa bar psi
0.19 1.9 1000
0.34 3.4 2000
0.48 4.8 3000
0.62 6.2 4000
0.68 6.8 4000
Models 238894,
248090, and 255072
air operated, with
fluid pressure gauge fluid pressure gauge
Model 238893
air operated, with EZ
Flush plug
6000 psi
(41 MPa, 414 bar)
500–4000 psi
(3.4–28 MPa,
34–276 bar)
100 psi

(0.7 MPa, 7 bar)

3/8 npt(f)
1/2 npt(f) for 248090
1/4 npt(f)
0–5000 psi
(0–34 MPa,
0–345 bar)
2 gpm (7.6 lpm)
up to 15,000 cp
120_ F (50_ C)
11.7 lb (5.3 kg)
PTFE with TPE
backing
––
Regulated Fluid Outlet Pressure
Model 255072
MPa bar psi
7 69 550
14 138 1150
21 207 1800
28 276 2450
28 276 2700
Model 244734
air operated, with
pressure sensor
ports ports
6000 psi
(41 MPa, 414 bar)
500–4000 psi
(3.4–28 MPa,
34–276 bar)
100 psi
(0.7 MPa, 7 bar)
1/2 npt(f)
1/4 npt(f)
––
2 gpm (7.6 lpm)
up to 15,000 cp
120_ F (50_ C)
11.7 lb (5.3 kg)
PTFE with TPE
backing
––
MPa bar
4 40
8 80
12 120
17 170
19 190