Prince Stack Valves

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Womack Machine Supply Company proudly partners with Prince Manufacturing Corp. to deliver the finest Industrial Directional Valves available. Our collaboration ensures that customers in multiple locations across the United States have access to these exceptional products, click here to see available locations. Our commitment to excellence, combined with the reliability and performance of Prince Manufacturing Corp., guarantees that you receive top-quality Industrial Directional Valves components for your specific needs.

Womack has access to over $3 million in standard Prince inventory ready for same day delivery and offers industrial leading lead times for custom products as well as flexibility inside of lead time for when you really need it.

Series 20 Stack Valve

20 GPM

SPECIFICATIONS
Parallel or Tandem Circuit Pressure Rating
Maximum Operating Pressure:  3,500 psi
Maximum Tank Pressure:  500 psi
Foot Mounting Weight
Inlet Cover:  Approx 6 lbs
Outlet Cover:  Approx 3.5 lbs
Work Section:  Approx 9 lbs

STANDARD FEATURES

1 -10 Work Sections
Extra Fine Spool Metering
Power Beyond Capability
Reversible Handle
Load Checks on Each Work Port
Hard Chrome Plated Spools
A Float Section can be Installed in any Location in Valve Assembly
Interchangeable Mounting With Other Popular “20” gpm Stack Valves
Optional Work Section with Pilot Operated Checks
Load Sense Work Sections Available
Cable Control Available

Nominal Flow Rating: 20 gpm
Allowable Pressure Loss thru Valve Determines the Maximum flow.

Filtration: For general purpose valves, fluid cleanliness should meet the ISO 4406 19/17/14 level.

For extended life or for pilot operated valves, the 18/16/13 fluid cleanliness level is recommended.

Item Number	Product Description	Port Size	STOCKED ITEM
20E21	Standard Outlet Section Open Center Outlet With Conversion Plug	#12 SAE ORB
20E23	Standard Outlet Section Closed Center Outlet	#12 SAE ORB
2012H	Standard Inlet Section Top and Side Inlet and Tank Ports Adjustable 1750-2200 PSI, Set at 2200 PSI @ 10 GPM	#12 SAE ORB
2012J	Standard Inlet Section Top and Side Inlet and Tank Ports Adjustable 2201-3000 PSI, Set at 2500 PSI @ 10 GPM	#12 SAE ORB
20P1BA1AA	Standard Parallel Work Circuit Section • Load Checks • Standard Lever Handles 4-Way Double-Acting with Spring Center (Work Ports Blocked in Neutral)	#10 SAE ORB Port Reliefs Plugged
20P1CA1AA	Standard Parallel Work Circuit Section • Load Checks • Standard Lever Handles 4-Way Free Flow Motor with Spring Center (Work Ports Open to Tank in Neutral)	#10 SAE ORB Port Reliefs Plugged
20P1CB1AA	Standard Parallel Work Circuit Section • Load Checks • Standard Lever Handles 4-Way Free Flow Motor with 3 position detent (Work Ports Open to Tank in Neutral)	#10 SAE ORB Port Reliefs Plugged
660402002	Tie Rod Kit (Tie Rod Torque 30-32 ft-lbs) 2 Sections
660402004	Tie Rod Kit (Tie Rod Torque 30-32 ft-lbs) 4 Sections

Available in: All States

Model SV Stack Valve

12 GPM

SPECIFICATIONS
Parallel or Series Circuit Construction

Pressure Rating
Maximum Operating Pressure:  3,000 psi
Maximum Tank Pressure:  500 psi
Nominal Flow Rating:  12 GPM
Refer to Pressure Drop Curves.

STANDARD FEATURES

1-10 Sections Per Valve Bank
Load Checks On Each Section
Hard Chrome Plated Spools
Compact Construction
Enhanced Metering Section Available in both the High and Low Sections
Differential Poppet Style Relief, Adjustable from 1,500 to 3,000 psi (Also available in Low Pressure Version Adjustable from 500 to 1,500 psi)
Power Beyond Capability
Reversible Handle
Mid-Inlet and Lock Valve Section available
Flow Control Inlet
Cable Control available

Filtration:For general purpose valves, fluid cleanliness should meet the ISO 4406 19/17/14 level.
For extended life or for pilot operated valves, the 18/16/13 fluid cleanliness level is recommended.
Foot Mounting
Maximum Operating Temperature:  180°F
Weight Per Section
Inlet Section:  Approx 3.75 lbs
Outlet Section:  Approx 3.75 lbs.
Work Section (Standard):  Approx 5.50 lbs.
Work Section (High):  Approx 8.00 lbs.

Inlet Sections
With both Top and Side Inlet Ports

Item Number	Relief Type and Setting	Port Size	STOCKED ITEM
SVI21	No Relief	#10 SAE ORB (7/8-14 THD)
SVI25	Adjustable High Pressure Relief Set at 2000 PSI	#8 SAE ORB (3/4-16 THD)

Outlet Sections
With both Top and Side Outlet Ports

Item Number	Exhaust Options	Port Size	STOCKED ITEM
SVE21	Open Center Outlet w/ Conversion Plug	#10 SAE ORB (7/8-14 THD)
SVE23	Closed Center Outlet	#10 SAE ORB (7/8-14 THD)

Work Sections
With Load Check and Standard Lever Handle

Item Number	Spool Type and Action	Port Size	STOCKED ITEM
SVW1BA1	4-Way Double Acting w/ Spring Center (Work Ports Blocked in Neutral)	#8 SAE ORB (3/4-16 THD)
SVW1CA1	4-Way Motor Spool w/ Spring Center (Work Ports Open to Tank in Neutral)	#8 SAE ORB (3/4-16 THD)

Tie Rod Kits
Tie Rod Torque 150in-lbs ± 6in-lbs (12 1/2 ft-lbs ±1/2)