Series 20S & 20HS Pilot

Pilot Specifications

--The Series 20H & 20HS FLOWGRID^(TM) Pilot is a high pressure version of the Series 20(S) pilot designed for set points between 200-900 psig. Both the high pressure and low pressure constructions share all the same parts except for a high pressure diaphragm assembly. The Series 20 & 20S pilot can be converted to the high pressure version simply by adding the high pressure diaphragm assembly.

The Series 20H FLOWGRID^(TM)Pilot

SPECIFICATIONS
BODY STYLE:	:	Pressure Reducing (PRV) & Back Pressure (BPV)
ORIFICE	:	0.15 INCHES (STANDARD) 0.17 INCHES (OPTIONAL)
CONNECTIONS	:	1/4" NPT
TEMPERATURE - NITRILE DIAPHRAGM & O-RINGS	:	WORKING -20 F TO 150 EMERGENCY -40 F TO 200 F
TEMPERATURE - VITON DIAPHRAGM & O-RINGS	:	30 F TO 200 F
MAXIMUM INLET PRESSURE	:	1500 PSIG
MAXIMUM LOADING PRESSURE	:	1500 PSIG
MAXIMUM OUTLET PRESSURE	:	1500 PSIG
MAXIMUM EMERGENCY SENSING PRESSURE	:	1000 PSIG
MAXIMUM SPRING HOUSING PRESSURE	:	1000 PSIG
SET PRESSURE RANGES	:	200-520 PSIG 400-900 PSIG

STANDARD CONSTRUCTION MATERIALS
BODY & SPRING CASE	:	FORGED BRASS OR 303 STAINLESS STEEL
BODY INSERT & CLOSING CAP	:	303 STAINLESS STEEL OR BRASS
ORIFICE	:	304 STAINLESS STEEL OR DELRIN
PLUG & STEM	:	NITRILE/303 STAINLESS STEEL, OR VITON/303 STAINLESS STEEL, OR 303-STAINLESS STEEL
DIAPHRAGM	:	NITRILE/NYLON OR VITON/NYLON
O-RINGS:	:	NITRILE OR VITON

STOCK NUMBERS
Spring Range	SPRING COLOR	PRV STOCK NO	BPV STOCK NO^*	WT
-----(SERIES 20 BRASS)-----
200-500 PSI	BLACK	FP-41	FP-43	6 lbs
400-900 PSI	GREEN	FP-42	FP-44	6 lbs

--(SERIES 20S STAINLESS)--
200-500 PSI	BLACK	FP-49	FP-51	6 lbs
400-900 PSI	GREEN	FP-50	FP-52	6 lbs
^* DELRIN ORIFICE AND STAINLESS STEEL PLUG/ STEM ASSEMBLY ARE REQUIRED FOR RELIEF (BPV) APPLICATIONS OVER 450 PSIG.

FLOW COEFFIENTS AND CONSTANTS
All Series 20 Pilots
	C1	Max Cg	Max Cv
0.15 Orifice (Standard)	38	9.58	0.25
0.17 Orifice (Optional)	38	11.18	0.29

Pilot Performance	Trim Options
Dimensions	Sectional View
Parts List Series H	Parts List Series HS

40 West Gregson Ave. Salt Lake City, Utah 84115
Phone: (801) 487-2225 FAX (801) 487-2587
E-MAIL: mail@mooneycontrols.com

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