Brochure

Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
Catalog CIC-2003-1/US
Refrigeration Solenoid Valves
236
Technical Information Series R20 and R25 Pilot-Operated Valves
Series R20 — 2-Way Pilot-Operated Normally Closed Valves
Series R25 — 2-Way Pilot-Operated Normally Open Valves
Materials of Construction
Body ..................................................................... Brass
Seals .................................................................. Rulon
®
Plunger .................................................... 430 Stainless
Sleeve Tube ............................................. 305 Stainless
Stop ......................................................... 430 Stainless
Piston ................................................................... Brass
Springs ........................................................... Stainless
Shading Ring ..................................................... Copper
Connections .......................... Extended Ends – Copper
SAE Flare Available
Manual Stem .......................... 430 Stainless (available)
Specifications
R20 Valve — Normally Closed
1 Reference Ratings Summary for nominal capacity system conditions.
2 For capacities at other ratings, refer to Extended Capacity tables.
Coils available separately. Use Coil “R” with “R” Series valves. Reference coil enclosure page 249 for electrical coil enclosure options.
R25 Valve — Normally Open
* Without Manual Bypass – Omit suffix “M” for the valve number.
R22 R134a
R404a
R507 R410a R22 R134a
R404a
R507 R410a R22 R134a
R404a
R507 R410a
R20E42M 1/4 ODF
R20E43M 3/8 ODF
R20E62M 1/4 ODF
R20E63M 3/8 ODF
R20E83M 3/8 ODF
R20E84M 1/2 ODF
R20F42M 1/4 SAE
R20F43M 3/8 SAE
R20F63M 3/8 SAE 3/16 0.75 3.80 2.95 2.56 4.53 0.40 0.31 0.37 0.50 0.67 0.57 0.64 0.80
R20F83M 3/8 SAE
R20F84M 1/2 SAE
1.180.73 0.98 0.84 0.931/4 1.09 5.53 4.29 3.73 6.61 0.59 0.45 0.54
1.181/4 1.09 5.53 4.29 3.73 6.61 0.59
1/8
Valve
Number*
Nominal Liquid Suction Vapor Hot Gas
Nominal Capacity (Tons)
1, 2
Connection
(Inches)
Port
(Orifice)
(Inches) Cv
0.40
0.75
2.09
Extended Ends
1.62 1.41 2.49
4.532.562.95
Flare Fitting
1/8
3/16
0.45 0.54 0.73 0.98 0.84 0.93
3.80
0.21 0.16 0.20 0.26 0.36 0.31 0.34 0.43
0.800.640.570.670.500.370.310.40
0.16 0.200.40 2.09 1.62 1.41 2.49 0.21 0.430.26 0.36 0.31 0.34
R22 R134a
R404a
R507 R410a R22 R134a
R404a
R507 R410a R22 R134a
R404a
R507 R410a
R25E42 1/4 ODF
R25E43 3/8 ODF
R25E62 1/4 ODF
R25E63 3/8 ODF
R25E83 3/8 ODF
R25E84 1/2 ODF
R25F42 1/4 SAE
R25F43 3/8 SAE
R25F63 3/8 SAE 3/16 0.75 3.80 2.95 2.56 4.53 0.40 0.31 0.37 0.50 0.67 0.57 0.64 0.80
R25F83 3/8 SAE
R25F84 1/2 SAE
0.430.26 0.36 0.31 0.340.16 0.200.40 2.09 1.62 1.41 2.49 0.21
0.500.370.310.40 0.800.640.570.67
0.36 0.31 0.34 0.430.21 0.16 0.20 0.26
Flare Fitting
1/8
3/16
0.45 0.54 0.73 0.98 0.84 0.93
3.80
0.40
0.75
2.09
Extended Ends
1.62 1.41 2.49
4.532.562.95
Valve
Number
Nominal Liquid Suction Vapor Hot Gas
Nominal Capacity (Tons)
1, 2
Connection
(Inches)
Port
(Orifice)
(Inches) Cv
0.54
1.181/4 1.09 5.53 4.29 3.73 6.61 0.59
1/8
3.73 6.61 0.59 0.451/4 1.09 5.53 4.29 1.180.73 0.98 0.84 0.93