SystemStak Relief Valve, NFPA-D03 Size, Dual Relief, A to T, B to T, 75-4500 PSI Screw & Locknut Adjustment

Description & Features

The SystemStak Relief Valve, NFPA-D03 Size, Dual Relief, A to T, B to T, 75-4500 PSI Screw & Locknut Adjustment offers robust performance designed for high-pressure applications. Constructed from ductile iron, it features spheroidal graphite for enhanced durability and is NFPA fatigue proof rated at 4500 PSI. The valve's hardened steel internal parts and standard Vitonreg; seals ensure reliable operation within a fluid temperature range of -4deg;F to 176deg;F for petroleum oil and 50deg;F to 129deg;F for water-based fluids.

With an adjustable range of 75 to 4500 PSI and a screw & locknut adjustment style, this valve aids in precise control. It utilizes a standard interface, which reduces potential leaks and installation time, streamlining the integration process. The system's rugged design with large flow passages supports high flow ratings, making it suitable for demanding environments.

It has a stacking height of 1.57 inches and is recommended for applications where space-saving is crucial. The valve features no gauge port and its construction includes aluminum nameplates. For optimal performance, adhere to recommended filtration levels: ISO 20/16 for up to 3000 PSI and ISO 18/14 for over 3000 PSI. The mounting bolts are 10-24 grade 8 socket head cap screws, lubricated and torqued to 63-80 lb.in.

Model Number: DGMC2-3-AT-GW-BT-GW-41

Supplier Part Number: 871702

Specifications

Actuator Type
Pressure Operated
Adjustment Style
Screw and Locknut
Body Material
Iron
Design
41 Series
Dimensions
9.2 in L x 1.87 in W x 1.57 in H
Discharge 1
Discharge into T
Discharge 2
Discharge into T
First Function
Pressure Limited in A
Function
A to T, B to T
Function 1 Pressure Adjustment
725 to 4500 psi
Gauge Port
Without Gauge Port
Key
C
Media
Petroleum Oil
Nominal Size
#03
Number of Stages
2
Performance
Standard
Seal Material
FKM
Second Function
Pressure Limited in B
Series
DGMC-2 Series
Sg Available Functions
Relief, Counterbalance, Sequence, Pressure Reducing, Direct Check, Pilot-Operated Check, Flow Control
Sg Construction
Ductile Iron (Spheroidal Graphite) Body (NFPA Fatigue Proof Rated at 4500 psi), Hardened Steel Internal Parts, Aluminum Nameplate, Standard FKM Seal
Sg Fluid Temperature Range
-4 to 176 deg F Petroleum Oil, 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
ISO Level 19/17/14
Type
Dual Relief
Valve Mount Type
Subplate/Manifold

Product Questions & Answers (1)

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Question by: Brenda R on Apr 27, 2025, 7:12 PM
Will this relief valve fit a standard D03 pattern?
Answer by: Customer Support on Apr 29, 2025, 9:38 AM
As a SystemStak valve with an NFPA-D03 size, it's designed to fit any standard D03 manifold.

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