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5400 - 5450 Dump Valve 

5400 - 5450 Dump Valve

The Model 5400 (Figure 1) and Model 5450 (Figure 2) control valves are designed to meet the high pressure and erosive applications common to the oil and gas industry. These valves are ideally suited for pressure, level, temperature, and flow control applications on separators, scrubbers, wellheads, and other oilfield equipment.

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5100-A Dump Valve 

5100-A Dump Valve

The Model 5100 "Freezeless" dump valve is perfectly suited for fluid control in oil and gas separators and other process vessels. The valves body design allows the plug and seat to be constantly submerged in the process media, thus giving the valve its "Freezeless" characteristic.

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5126 Dump Valve 

5126 Dump Valve

The Model 5126 "Freezeless" dump valve is perfectly suited for fluid control in oil and gas separators and other process vessels. The valves body design causes the plug and seat to be constantly submerged in the process media, thus giving the valve its "Freezeless" characteristic.

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5127 Dump Valve 

5127 Dump Valve

The Model 5127 "Freezeless" Dump Valve is designed for fluid control in oil and gas separators and other process vessels. The valve’s body design allows the plug and seat to be constantly submerged in the process media, thus giving the valve its "freezeless" characteristic.

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3350/3360 Control Valve 

3350/3360 Control Valve

The Model 3350 / 3360 design is preferred by production operators and technicians worldwide for pressure control requirements, due to its simple construction, versatility, and reliable performance in the most demanding applications. The controller is offered in proportional (Model 3350) and proportional-plus-reset (Model 3360) configurations.

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5500 Control Valve

5500 Control Valve

The Model 5500 is a durable and reliable control valve, well suited for throttling or on/off control of non-lubricating, viscous, or other hard-to-handle fluids. The Model 5500 is used over a broad range of pressure drops and temperatures where accurate and reliable control is required.

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5600 Heavy-Duty Regulator 

5600 Heavy-Duty Regulator

The Model 5600 is a spring-loaded, self-operated pressure regulator, available in 1" and 2" sizes and built to withstand the most difficult processes and environments.

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5601/5601 NF Air Set Regulator 

5601/5601 NF Air Set Regulator

The Model 5601 is an adjustable air regulator designed for instrumentation and general purpose. Careful design and quality materials throughout assure long, trouble-free operation in the most difficult industrial environments. The Model 5601NF is a non-filter regulator built to the same specifications as the 5601.

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5607 High Flow Pressure Regulator 

5607 High Flow Pressure Regulator

The Model 5607 regulator is specifically designed for applications that require substantial flow capacity and accurate pressure controls.

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5646 Pressure Regulator 

5646 Pressure Regulator

The Model 5646 Pressure Regulator (Figures 1and 2) provides economic control of natural gas, air, or a variety of other gases in commercial and industrial applications. This self-operated pressure reducing regulator is equipped with an integral pitot (boost) tube for increased flow capacities and stability.

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5660 High Pressure Regulator 

5660 High Pressure Regulator

The Model 5660 (Figures 1 and 2) is designed to reduce high inlet pressures to working pressures. Careful design and quality materials throughout assure long, trouble-free operation in the most difficult industrial environments.

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5670 High Pressure Regulator - SST 

5670 High Pressure Regulator - SST

The Model 5670 is designed to reduce high inlet pressures to working pressures. Careful design and quality materials throughout assure long, trouble-free operation in the most difficult industrial environments.

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Model 3500/3510 Gauge Valve 

Model 3500/3510 Gauge Valve

Mallard Model 3500 (rigid-union, Figure 1) and Model 3510 (union-union, Figure 2) Gauge Valves are recom- mended for use with Mallard Model 3520 / 3540 Glass Liquid Level Gauges and are compatible with all armored flat-glass liquid level gauges. Consistent with Mallard's reputation, the Model 3500 is designed and built to the highest standards.

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Model 3520/3540 Glass Liquid Level Gauge

Model 3520/3540 Glass Liquid Level Gauge

The Mallard Glass Liquid Level Gauge is a rugged flat glass gauge for medium-pressure (Model 3520) and high-pressure (Model 3540) applications. Standard construction includes a solid one-piece chamber machined form bar, forged steel covers, alloy steelbolts and nuts, and tempered glass.

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Model 5800 Check Valve 

Model 5800 Check Valve

Model 5800 Piston Check Valve is made for the prevention of gas or liquid backflow.

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Model 3100E Liquid Level Switch 

Model 3100E Liquid Level Switch

The Model 3100E is an electric, float-operated switch which can be used as a high or low level alarm or for liquid level control. The 3100E is rated for high pressure applications, and the polystyrene float will effectively and consistently operate the switch at specific gravities as low as 0.50.

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Model 3100P/3100P1 Liquid Level Switch 

Model 3100P/3100P1 Liquid Level Switch

The Model 3100P (Figure 1) and 3100P1 (Figure 2) are pneumatic, float-operated switches for liquid level control. The 3100P is a 2-way normally-open or normally-closed pneumatic switch, and the 3100P1 is a 3-way block-and- bleed switch.

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Model 3150 Liquid Level Control 

Model 3150 Liquid Level Control

The Model 3150 is a simple pneumatic level control device designed for low pressure applications. Available with either 2” NPT or 4” Union vessel connection, the Model 3150 is designed with few moving parts to provide consistent, dependable service.

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Model 3900 Liquid Level Controller

Model 3900 Liquid Level Controller

The Model 3900 Liquid Level Switch is a pneumatic snap acting or electric SPDT or DPDT High/Low level switch. This rugged instrument applies the same "Force Balance" control mechanism as the Model 3200 Liquid Level Controller, combined with a compact vertical cage assembly.

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