Baker Hughes Mooney 20 Series, Instruction Manual, Page: 16 / 24

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Materials of Construction
Series 20H & 20HS
Body & Spring Body & Spring
Housing Housing
Forged Brass or 303 Stainless Forged Brass or 303 Stainless
Steel Steel
Body Insert & Closing
Cap
Brass or 300 Stainless Steel
Diaphragm Spacer
Assembly (20H, 20HS)
300 Stainless Steel
Orifice 300 Stainless Steel or Delrin
(1)
Plug & Stem Nitrile/300 Stainless Steel
Viton/300 Stainless Steel
300 Stainless Steel
Diaphragm Nitrile/Nylon or Viton/Nylon
O-Rings Nitrile or Viton
(1)
Delrin Orifice with all Stainless Steel Plug/Stem is recom-
mended for all set pressures 100 psi and above (Figure 26).
Table 6
Specifications
All Series 20 Pilots
Control Application Back Pressure (BPV)
Orifice Size 0.15 in (3.81 mm)
Connections 1/4 in NPT
Temperature Working -20°F to 150°F
(-6.7 °C to 65.7°C)
Emergency -40°F to 200°F
(-40° C to 93. 3° C)
Maximum Inlet Pressure 750 psig (103.4 bar)
Maximum Loading
Pressure
750 psig (103.4 bar)
Maximum Outlet Pressure 750 psig (103.4 bar)
Maximum Emergency
Sensing Pressure
1000 psig (68.9 bar)
Maximum Spring
Housing Pressure
1000 psig (68.9 bar)
Set Pressure Range 15-750 psig (0.2 - 62.1bar)
(2)
(2)
Refer to Table 8 for specific spring ranges.
Table 7
Specifications
Series Spring Range Color
Part
Number
20 &
20S
10 - 40 psi (0.7 - 2.7 bar) Plated 040-011-01
25 - 90 psi (1.7 - 6.2 bar) Blue 040-012-01
60 - 200 psi (4 - 14 bar) Purple 040-008-01
100 - 260 psi (7 - 18 bar) Black 040-009-01
200 - 450 psi (14 - 31 bar) Green 040-020-01
20H &
20HS
200 - 520 psi (14 - 36 bar) Black
(3)
040-009-01
400 - 900 psi (27 - 62 bar) Green
(3)
040-020-01
(3)
Spacer on Adjustment Screw Required
Table 8
Figure 11
Mooney Series 20 Pilots
Series 20 & 20S
Cartridge Bottom View all
Constructions
Series 20H & 20HS
6
2
4
3
2
5
3
1A
1