Technical Specifications; California Proposition 65 - Graco 25T478 Instructions - Parts Manual

Technical Specifications

Technical Specifications
Medium Pressure Back Pressure Regulator
Maximum fluid inlet pressure
Maximum air pressure (Air Operated Type)
Regulated fluid pressure range
25T478 (10:1)
25T477 (20:1)
25R490 (30:1)
25R491 (mechanical)
Flow range
Maximum fluid temperature
Maximum recommended viscosity
Inlet/Outlet Sizes
Air inlet size
Gauge port size
Inlet (all models)
Outlet size (all models)
Weight
25T478 (10:1)
25T477 (20:1)
25R490 (30:1)
25R491 (mechanical)
Noise
Sound pressure level at maximum flow rate
Materials of Construction
Wetted parts
* Regulated range is 250–1000 psi (1.7–7 MPa, 17–70 bar) above 3 gpm (11 lpm).
®
Molykote is a registered trademark of the Dow Corning Corporation.

California Proposition 65

CALIFORNIA RESIDENTS
WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.
14
US
3000 psi
100 psi
100–1000 psi*
250–2000 psi
250–3000 psi
0–5 gpm
200–250 cP (depending on flow rate)
(1) 3/8 in. npt(f), (1) 1/4 in. npt(f) gauge port
4.0 lb
3.7 lb
4.7 lb
4.5 lb
Less than 75 dB(A)
Stainless steel, tungsten carbide, PTFE, acetal homopolymer
Metric
21 MPa, 207 bar
0.7 MPa, 7 bar
7–70 bar*
17–138 bar
17–207 bar
0–19 Ipm
122°F (50°C)
1/4 in. npt(m)
1/4 in. npt(f)
(2) 3/8 in. npt(f)
1.8 kg
1.7 kg
2.1 kg
2.0 kg
3A7681A