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Series-38RConfiguration

Self-Acting Temp Control Valve for Tanks, No Power, Various Sizes

  • Self-acting temperature control valve requires no external power for reliable operation
  • Rugged die-cast aluminum actuator with enclosed bellows and internal over-range protection
  • Valve bodies offered in bronze, cast-iron, cast-steel, or 316 stainless steel with multiple designs
  • Options include indicating, non-indicating, and fail-safe actuators with bulbs, capillaries, thermowells
Series-38R

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Self-Acting Temp Control Valve for Tanks, No Power, Various Sizes Series-38R Series-38R
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Product Overview
  • Series ID Series-38R

The Series 38R Self-Acting Temperature Control Valve is a reliable solution for industrial temperature regulation that requires no external power sources. Designed for applications such as tanks, process control streams, and industrial equipment, this self-operated valve features a rugged die-cast aluminum actuator with a fully enclosed bellows assembly and built-in over-range protection. The control valves are available in 1/2˝ through 6˝ connection sizes and 1/8˝ through 6˝ port sizes. Body styles include single-seated direct or reverse-acting, double-seated direct or reverse-acting, and versatile 3-way designs, with durable material options: bronze valve, cast-iron, cast-steel, or 316 stainless steel valve.

Actuator options include compact non-indicating types for space-limited installations, indicating actuators for precise process temperature verification, and fail-safe actuators that return the valve to a safe position (open in cooling or closed in heating) in the event of system failure. The Series 38R also offers a wide range of capillaries, bulbs, and thermowells, making it an ideal choice for process control, HVAC, chemical, and manufacturing industries seeking dependable and efficient temperature control valves.

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EXAMPLE 38R D A1 V A 3 2 1 01 08 1 R01 Series 38R-DA1VA32-101081-R01 Self-Acting Temperature Control Valve, 2-way, direct acting, 1/2" connection with 1/8" port, single seat, linear, bronze body, 316SS trim, non-indicating actuator, brass union hub, copper bulb & 8' capillary, 316SS well, range 20 to 70°F.
SERIES 38R                       Self-Acting Temperature Control Valve
ACTION   0
3
D
R
                    Replacement Actuator Only
3-way
2-way Direct Acting
2-way Reverse Acting
CONNECTION & PORT SIZE     A1
A2
A3
A4
B1
B2
B3
B4
B5
C1
C2
C3
C4
C5
C6
00
01
02
03
04
05
06
07
08
09
10
                  1/2" Connection with 1/8" Port
1/2" Connection with 3/16" Port
1/2" Connection with 1/4" Port
1/2" Connection with 3/8" Port
3/4" Connection with 1/8" Port
3/4" Connection with 3/16" Port
3/4" Connection with 1/4" Port
3/4" Connection with 3/8" Port
3/4" Connection with 1/2" Port
1" Connection with 1/8" Port
1" Connection with 3/16" Port
1" Connection with 1/4" Port
1" Connection with 3/8" Port
1" Connection with 1/2" Port
1" Connection with 3/4" Port
1/2" Full Port
3/4" Full Port
1" Full Port
1-1/4" Full Port
1-1/2" Full Port
2" Full Port
2-1/2" Full Port
3" Full Port
4" Full Port
5" Full Port
6" Full Port
VALVE SEAT       0
V
W
                Replacement Actuator Only
Single Seat
Double Seat
VALVE PLUG TYPE
(Internal)
        0
A
              Replacement Actuator Only
Linear
BODY MATERIAL           0
1
2
3
4
            Replacement Actuator Only
Cast Iron
Cast Steel
Bronze
316SS
TRIM MATERIAL
(Internal)
            0
1
2
          Replacement Actuator Only
Bronze
316SS
ACTUATOR               0
1
2
3
        Replacement Body Only
Non-Indicating
Indicating
Fail-Safe
BULB & CAPILLARY                 00
01
02
03
04
05
06
07
08
09
10
      Replacement Body Only
Brass Union Hub, Copper Bulb & Capillary
SST Union Hub, SST Bulb & Capillary
Brass Adjustable Union Hub, Copper Bulb & Capillary
SST Adjustable Union Hub, SST Bulb & Capillary
Copper Bulb & Capillary Only
SST Bulb & Capillary Only
Bulb & Capillary Only Copper w/FEP Covering
Bulb & Capillary Only SST w/FEP Covering
Brass Union Hub, Copper Bulb & Capillary SST Armor
SST Union Hub, SST Bulb & SST Capillary SST Armor
CAPILLARY LENGTH                   00
08
12
16
20
24
28
32
36
40
44
48
52
    Replacement Body Only
8'
12'
16'
20'
24'
28'
32'
36'
40'
44'
48'
52'
WELL                     0
1
2
  None
316SS
Brass
RANGE                       000
R01
R02
R03
R04
R05
R06
R07
R09
R10
R11
R12
R13
R14
R81
R82
R83
R84
R85
R86
R89
R90
R91
R92
R93
R94
R95
R96
Replacement Body Only
20 to 70°F (-10 to 20°C)
40 to 90°F (5 to 30°C)
30 to 115°F (0 to 45°C)
50 to 140°F (10 to 60°C)
75 to 165°F (25 to 70°C)
105 to 195°F (40 to 90°C)
125 to 215°F (55 to 100°C)
155 to 250°F (70 to 120°C)
200 to 280°F (9 to 135°C)
225 to 315°F (110 to 155°C)
255 to 370°F (125 to 185°C)
295 to 420°F (145 to 215°C)
310 to 440°F (155 to 225°C)
40 to 65°F (5 to 20°C)
55 to 80°F (15 to 25°C)
65 to 90°F (20 to 30°C)
81 to 110°F (25 to 40°C)
90 to 115°F (30 to 45°C)
110 to 140°F (40 to 60°C)
140 to 175°F (60 to 80°C
170 to 195°F (80 to 90°C)
190 to 210°F (85 to 100°C)
205 to 225°F (95 to 105°C)
215 to 250°F (100 to 120°C)
230 to 265°F (110 to 130°C)
245 to 280°F (120 to 135°C)
270 to 300°F (135 to 150°C)
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