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SystemStak Pressure Reducing Valve, NFPA-D03 Size, Pressure Reduced in P Piloted from P, 51-1000 PSI Screw & Locknut Adjustment

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Description & Features

Featuring a sturdy ductile iron body and hardened steel internal components, this SystemStak valve ensures durability and high performance. Designed to reduce space and installation time, its rugged construction includes large flow passages and offers high pressure and flow ratings.

The valve operates within an adjustable range of 51-1000 PSI, making it versatile for various applications. Standard Vitonreg; seals ensure compatibility with a range of hydraulic fluids, and it is rated for a maximum operating pressure of 4500 PSI.

Mounting is streamlined with 10-24 grade 8 socket head cap screws, ensuring secure installation. The screw and locknut adjustment style located at the B port end allows precise control. Model: DGMX2-3-PP-BW-S-40.

Optional functions include relief, counterbalance, sequence, direct check, pilot-operated check, and flow control, suitable for different industrial needs.

Constructed to withstand a fluid temperature range of -4deg;F to 176deg;F for petroleum oils and 50deg;F to 129deg;F for water-based fluids, this valve meets demanding performance requirements. Its standard interface minimizes potential leaks, enhancing reliability.

Recommended filtration is up to ISO level 20/16 for pressures up to 3000 PSI and ISO level 18/14 for pressures exceeding 3000 PSI.

MPN: DGMX2-3-PP-BW-S-40

Supplier Part Number: 870039

Specifications

Actuator Type
Pressure Operated
Adjustment Location
Adjuster - B Port End of Valve
Adjustment Style
Screw and Locknut
Adjustment Type
Screw and Locknut
Body Material
Iron
Connection Type
Female UNF
Design Series
40 Series
Dimensions
6.65 in L x 2.82 in W x 2.36 in H
End Type
Female UNF
Function
Pressure Reduced in P Piloted From P
Function Ports
Reducing Line P, Pilot Line P
Gauge Port
SAE 4
Gauge Port Thread
SAE 4 (7/16-20 UNF-2B)
Key
A
Media
Petroleum Oil
Nominal Size
#03
Number of Ports/Ways
3-Port
Number of Stages
1
Performance
Standard
Seal Material
FKM
Series
DGMX2-3 Series
Sg Available Functions
Relief, Counterbalance, Sequence, Pressure Reducing, Direct Check, Pilot-Operated Check, Flow Control
Sg Construction
Hardened Steel Internal Parts, Aluminum Nameplate
Sg Features
Save Space and Installation Time. Reduce Potential Leaks. Standard Interface. Rugged Design with Large Flow Passages, High Pressure and High Flow Ratings
Sg Fluid Temperature Range
50 to 129 deg F Water Based Fluids
Sg Mounting Bolts
#10-24 Grade 8 Socket Head Cap Screws Lubricated and Torqued to 63 to 80 lb-in. Bolt Kits On
Sg Recommended Filtration
Upto 3000 psi ISO Level 20/16, Over 3000 psi ISO Level 18/14
Valve Mount Type
Subplate/Manifold

Product Questions & Answers (3)

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Question by: Ronnie H on Aug 30, 2025, 3:24 PM
got a D03 stack setup already. is this one the pressure reducing style that drops pressure in P, and it’s piloted from P too?
Answer by: Customer Support on Sep 1, 2025, 8:09 AM
Function-wise, it is a pressure reducing valve set up for pressure reduced in P and piloted from P, in an NFPA-D03 SystemStak format.
Question by: Peggy B on Jun 19, 2025, 9:26 PM
So this thing reduces pressure, but how much can it handle coming in?
Answer by: Customer Support on Jun 21, 2025, 6:49 PM
It's rated for a maximum operating pressure of 4500 PSI.
Question by: Wade P on Aug 30, 2025, 2:02 PM
got a stack valve manifold already, does this one fit the NFPA D03 setup or is it some oddball pattern?
Answer by: Customer Support on Aug 31, 2025, 6:47 PM
It is an NFPA-D03 size SystemStak valve with the standard interface, so it is meant to stack in a D03 arrangement and help cut down on extra hydraulic connections and leak points.

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