Marshall Excelsior

Everything you need such as pigtails, hogtails, manifolds, brackets, vent guards & fittings to complete your installation.

Designed for installation in stationary ASME applications such as bulk plant, skid tanks, underground and above ground containers as the primary pressure relief valve.

• Pressure Range (Setting): 60 – 460 PSI
• Maximum Inlet Pressure: Varies
• Size Range: 1/4″ – 2-1/2″ NPT

Designed for accurate pressure regulation for higher inlet and/or outlet pressure applications. Monitor version also available.

• Minimum Inlet Pressure: 5 PSI
• Maximum Inlet Pressure: 150 – 300 PSI
• Outlet Pressure Range: 7″WC – 65 PSI
• Size Range: 2″ NPT & 2″ Flanged

Designed for applications where accuracy and fast response are critical. It is ideal for commercial/industrial equipment requiring high flow capacities.

• Minimum Inlet Pressure: 1 PSI
• Maximum Inlet Pressure: 60 PSI
• Outlet Pressure Range: 2″WC – 10 PSI
• Size Range: 2″ NPT & 2″ Flanged

These first stage regulators are used to reduce tank pressures for a second stage regulator to be used downstream (normally 10 PSIG) .

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 4 – 12 PSI
• Size Range: POL & 1/4″ – 3/4″ NPT
• Approvals: ULc-C144

These second stage regulators are used to reduce outlet pressures from first stage regulators (normally 10 PSI) to either 11”WC or 2 PSI.

• Maximum Inlet Pressure: 10 PSI
• Outlet Pressure Range: 9″ – 2.2 PSI
• Size Range: 1/2″ – 1″ NPT
• Approvals: ULc-C144

These twin-stage regulators combine first and second stage into one convenient design. Used for short pipe distances for outlet prssures of either 11″wc or 2 PSI.

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 9″WC – 2.2 PSI
• Size Range: POL & 1/4″ – 3/4″ NPT
• Approvals: ULc-C144

Desinged to prevent gas outages by switching fom primary to secondairy cylinder when the primary cylinder is depleted. Primairy cylinder can be refilled while still in service

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 9″WC – 2.2 PSI
• Size Range: 1/4″ IF x 1/2″ NPT
• Approvals: ULc-C144

These models are used for smaller pipe sizes and lower flows. Installations include portable, RV & home appliances.

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 11″WC – 2 PSI
• Size Range: 1/4″ (NPT or IF) x 3/8″ NPT
• Approvals: UL-144

Everything you need such as pigtails, hogtails, manifolds, brackets, vent guards & fittings to complete your installation.

Designed for accurate pressure regulation with low capacities. It is ideal for residential, commercial and industrial heating and portable equipment.

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 3″WC – 5 PSI
• Size Range: 1/4″ & 1/4″x 3/8″ NPT
• Approvals: UL-144 (certain configurations)

Designed for pressure regulation of gas or liquid applications. Handwheel operated is standard but has the option of a fixed tamper-proof spring case.

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 3 – 100 PSI
• Size Range: 1/4″ NPT
• Approvals: UL-144

Designed for accurate pressure regulation in both natural gas and propane gas applications in a compact size. They are ideal for first stage and heating equipment requiring high pressures.

• Maximum Inlet Pressure: 250 – 400 PSI
• Outlet Pressure Range: 3 – 125 PSI
• Size Range: 1/2″ – 1″ NPT
• Approvals: UL-252

Designed for highly accurate pressure reduction for industrial use. Trim materials avaialble for standard, high tempreture and NH3 applications.

• Maximum Inlet Pressure: 250 PSI
• Outlet Pressure Range: 3 – 125 PSI
• Size Range: 1/2″ – 1″ NPT
• Approvals: UL-144

Designed for high capacity as a first stage regulator. Options also include internal relief valve, high temperature, and monitor configurations.

• Maximum Inlet Pressure: 250 – 1,000 PSI
• Outlet Pressure Range: 5 – 150 PSI
• Size Range: 3/4″ – 2″ NPT
• Approvals: UL-144 (certain configurations)

Designed for high capacity as a first stage regulator for industrial applications.

• Maximum Inlet Pressure: 250 – 1,500 PSI
• Outlet Pressure Range: 3 – 40 PSI
• Size Range: 2″ NPT

Designed for high flow capacities using a large diaphragm and pitot tube booster. Its quick response and throttling capabilities make it ideal for commercial/industrial heating equipment requiring reliable protection.

• Pressure Range (Setting): 7″WC – 75 PSI
• Maximum Inlet Pressure: 25 – 100 PSI
• Size Range: 1″ & 2″ NPT

A back pressure regulator designed for a large variety of process applications. Used for any type of industry and ideal for liquids, air as well as gas applications.

• Pressure Range (Setting): 15 – 200 PSI
• Maximum Inlet Pressure: 300 PSI
• Size Range: 3/4″ & 1″ NPT

Designed for accurate pressure reductions and comes standard with full internal relief. Used for both indoor and outdoor installations.

• Minimum Inlet Pressure: 14″WC
• Maximum Inlet Pressure: 13 – 125 PSI
• Outlet Pressure Range: 2″WC – 5 PSI
• Size Range: 1-1/2″ & 2″ NPT, 2″ Flanged

Designed for first cut low flow pressure reductions. Ideal for valve actuators, catalytic heaterspressure controls and chemical injection pumps. Brass construction.

• Maximum Inlet Pressure: 5,500 PSI
• Outlet Pressure Range: 3 – 225 PSI
• Size Range: 1/4″ NPT