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SERIES 730 MASS FLOW CONTROL VALVES
The Series 730 Mass Flow Control Valves were designed by Dr. Jerry Kurz in about 1980 to provide a simple, compact electrically operated, precise metering valve for applications requiring a high flow rate turn-down ratio. The unique Kurz design utilizes a rotor having a helical shape machined into its bottom face, opposite an inlet orifice and an outlet orifice. The diameter, separation and the helical depth were designed to provide a nearly linear flow coefficient (Cv) with angular rotation. A simple high torque gearmotor (24 VDC) was selected for cost and simplicity. Since the Series 730 is a "fail-as-is" design, the motor is only used when changes are required, which greatly extends the motor life. The Series 730 combines the electric drive motor, the valve body, rotor and limit switches into a well-designed, integrated package. The typical turn-down ratio is 50:1, due to the incorporation of a pressure assisted shut-off disk which becomes active near the shut-off position. The Cv range is from 0.05 to 10.0 in three convenient body sizes. The Series 730 is constructed of 316L stainless steel, with Viton O'Rings and an o'ring sealed motor cover. It operates as a two-wire loop-powered device normally powered and controlled by one of the Series 155 Mass Flow Computers and used with a Kurz In-Line Mass Flow Element. The inlet and outlet fittings are Schedule 40 pipe with MNPT end connections or Class 150 flanges. Because of its rotary design, the Series 730 is not as affected by abrupt line pressure changes as are pneumatic control valves
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Model VCD 1000 Variable Constant Differential Flow Controller is designed to control low gas flows at constant mass flow rates regardless of downstream pressure fluctuations. The Model VCD 1000 design yields extremely linear flow output in relation to adjusting stem rotation while offering bubble-tight shut-off.
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Demand continues to mount for improved comfort conditioning combined with lower operating costs. New architectural designs have created real problems for contractors and engineers to maintain humidity control at reduced loads, and to control load variations. Refrigeration and air conditioning systems are usually designed to provide a given capacity at maximum conditions. These operate with little fluctuation throughout a narrow load range. However, only the larger size machines make any provisions for operation at reduced capacity. In some systems, integral cylinder unloading, the installation of a gas engine drive with variable speed control, or even multiple smaller systems, provide a logical solution.
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80000 Series
Masoneilan's 80000 Series 3-way control valve is designed for either combining or diverting flow applications. It provides large flow capacities with low-pressure recoveries, using a flow-to-open plug design.
Consolidated Pressure Relief Valves
Dresser Consolidated is a worldwide leader and full service provider of dependable pressure relief valve solutions. We design, engineer, manufacture, market and service the critical equipment that forms the backbone of pressure relief management throughout industries across the world.
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Superior Design:
Hayward all-plastic diaphragm valves have been specifically designed to perform in the most demanding liquid, gas, and slurry applications in both on/off and modulating service.
Position Indicator:
Hayward's standard highly visible, beacon-type position indicator will always give positive position indication, unlike rising stem indicators that can be inaccurate because of misadjusted stems. Sight panels are made from clear Eastar®.
Diaphragm Saver:
The Diaphragm Saver travel stop is a standard feature on all sizes of Hayward Diaphragm Valves. Its special design prevents overcompression of the diaphragm and prolongs its service life.
No Corrosion Problems:
These valves have no wetted metal components. The valves will never fail because of corrosion and they do not require painting or epoxy coating to stand up to aggressive environments.
True Union Design:
Hayward Diaphragm Valves with socket or threaded connections have a true union design so that they can be removed from the line without having to disconnect piping connections.
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Shut off valves are used in the liquid line of a refrigeration system. They are generally used as a manual shut off valve.
The ABV isolates suction, discharge, and liquid line pipework during maintenance shutdown periods.
Featured with :
- Forged brass body
- Hermetic design
- Compatible with new refrigerants/lubricants
- Full internal ports through 2 1/8"
- Bi-directional fl ow characteristics
- Valve stem cap retained by strap attached to main body
- Integrated access port available on all sizes
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Shut off valves are used in the liquid line of a refrigeration system. They are generally used as a manual shut off valve.
The ACK check valve is a normally closed magnetic check
valve that prevents reverse refrigerant fl ow in liquid lines and compressor discharge lines.
Featured with :
- Copper Connection Sizes 1/4" through 2-5/8"
- Hermetic Spun Copper Design
- Near Zero Internal Leak Rate
- Magnetic Checking Action
- Built-In 30 Mesh Stainless Steel Strainer
- Can Be Installed In Any Position
The ABV isolates suction, discharge, and liquid line pipework during maintenance shutdown periods.
Featured with :
- Forged brass body
- Hermetic design
- Compatible with new refrigerants/lubricants
- Full internal ports through 2 1/8"
- Bi-directional fl ow characteristics
- Valve stem cap retained by strap attached to main body
- Integrated access port available on all sizes
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Thermostatic expansion valves are designed for a wide range of air conditioning, refrigeration, heat pump and chiller applications.
Our integral valve line includes valves for commercial and refrigeration applications, as well as heat pump and residential applications. The "Take-A-Part Series" valves are the answer to your unique needs, available for almost any type of application, temperature range, or any known refrigerant. We also offer a complete line of specialty valves. Consult us for your specific system requirements.
The Thermo® Expansion Valve is a precision device designed to regulate the rate of refrigerant liquid flow into the evaporator in the exact proportion to the rate of evaporation of the refrigerant liquid in the evaporator. The amount of refrigerant gas leaving the evaporator can be regulated since the Thermo Valve responds to the temperature of the refrigerant gas leaving the evaporator and the pressure in the evaporator. This controlled flow prevents the return of refrigerant liquid to the compressor. The Thermo Expansion Valve controls the flow of gas by maintaining a pre-determined superheat.
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Style 575 Angle Ball Valve
The Dresser® Style 575 Angle Ball Valve provides dual service... as a main-to-service compression end tee connection, and as a shut-off valve.
Constructed of a unique combination of a rugged ductile iron body and a highstrength engineered plastic plug, the "575" valve offers a low torque 90-degree operation with positive, bottle-tight shut-off at pressures up to 125 psi.
Designed for durability under all service conditions, the interface of ductile and engineered plastic components eliminates any possibility of valve freeze-up due to corrosion.
The "575" eliminates the presence of an isolated metallic valve in a plastic service. The ductile material in the valve body is compatible with the cast iron main, so there's no need for anoding and monitoring. Plus, an optional AL-CLAD® Plastisol coating can provide even greater external corrosion protection. The compression end for connecting the service is of a time-proven Dresser design and meets all the requirements of D.O.T. 192.283(b), providing a permanent seal and pull-out resistance greater than the PE tubing in tension.
The "575" is available in inlet sizes 1-1/4" or 1-1/2" MIPT and an outlet size of 1-1/8" OD, but it can be readily adapted to other outlet sizes as required.
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The fine threads of the needle valve permit excellent adjustment for precise control of flow. The flow is restricted in both directions and is adjustable from 0 to the equivalent flow of a 0.025" diameter orifice. The 7-turn adjustment needle valves are available in two models, the standard model and the fine adjustment model. The standard adjustment model has a pin angle of 6° with 10-64 threads; the fine adjustment model has a pin angle of 4° with 10-80 threads.
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Connection guaranteed: a wide range of functions and variants - always harmonised to the respective requirements.
• Exhaust air/supply air flow control or without non-return function
• Flow rate 15 ... 4,300 l/min
• Threaded connectors M3 ... G3/4
• Push-in fittings QS3 ... QS 12 or PK-3 ... PK-6
• Variants with increased corrosion resistance
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LS-V05C
Proportional Pneumatic Control Valve
The LS-V05C is an enhanced version of the LS System proportional, directional control pneumatic valve for high performance applications such as medical equipment, test & measurement systems, advanced automation and animatronics. The valve is designed to be paired with Enfield Technologies driver or controller/driver electronics such as the LS-C10, LS-C41, and C2s.
Features:
* Proportional
* High Speed and Flow
* Whisper Quiet
* Vacuum Capable
* High Linearity
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General Description
Uni-directional
316 Stainless Steel or Brass in-line flow regulators for uni-directional operation (free flow return).
Bi-directional
316 Stainless Steel or Brass in-line flow regulators for bi-directional operation (separate flow control in each direction).
Operating Fluids
- Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases.
Sour gas option available
- Liquids
Low pressure hydraulic, mineral oil or water.
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The miniature Preset Flow Control is ideal for many applications involving pneumatic systems, including the control of cylinder speed.
The operation of the flow control is based on the movement of a small disc. The flat surface on one side of the orificed disc seals and permits flow through the orifice. The amount of flow permitted in the reverse direction is determined by the orifice size. In the forward direction full flow is permitted. The flow controls design allows a maximum supply pressure of 75 PSI with a minimum cracking pressure of less than 10” H2O. Orifice sizes are available from .004” to .040”.
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Angle Flow Control valves are designed to provide accurate flow control in a compact, labor saving package. Features like built in push-in fittings, pre-applied thread sealant, convenient swivel design and unique needle design all add up to a package that will save time, money and energy when accurate control is needed on pneumatic actuators.
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Rotary plug valves suitable to control high flow rates with high rangeability. The triple eccentric seat/plug design guarantees zero leakage and low initial breakaway torques when opening and closing.
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Two Proportional Flow Control Rates with One Valve: Hayward ProFile2 corrosion resistant, proportional control ball valves provide two linear flow curves; one for fast opening and one for slow opening. The percentage of flow through the valves with either flow curve is equal to the degree of opening. As the valves are opened or closed, the flow varies in direct proportion to the valve opening. This permits predictable, accurate control of the downstream flow rate with a 1/4 turn valve.
Unique Design "Characterized" Ball: These valves utilize a unique, patented ball with a special "characterized" opening that results in the linear flow rate change. Valves are shipped with the ball installed so that the smaller opening enters the flow first, creating the slow open rate. To switch to the fast opening rate, simply reverse the ball in the valve. With the larger opening first, the flow starts fast with slower, more controlled changes as the ball is turned to "full open".
Perfect With Positioners: Hayward ProFile2 Proportional Control True Union Ball Valves can be supplied with optional electric or pneumatic actuators with positioners for automated modulating service applications.
Never a Problem with Corrosion: Because of their all plastic construction, Hayward ProFile2 ball valves will never rust or corrode. They can survive corrosive environments and harsh weather conditions without the need for painting or expensive epoxy coatings.
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Description:
The Becker FPCV-T0 Full Port Control Valve is a trunnion-mounted rotary control valve designed for monitoring or mild-duty service above ground and heavy duty service below grade. The FPCV-T0 features a rugged design that provides maximum capacity with minimal full-open pressure drop. The FPCV-T0 features a side-entry, forged body and end closures that allows easy maintenance or repair of the control valve. The FPCV-T0 is ideal for use as a monitor over-pressure regulator or other mild-duty service. The FPCV-T0 is available in a variety of configurations from 2” (50 mm) bore to 42” bore (1050 mm).
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Description:
The Becker QTCV-T1 Quiet Trim Control Valve is a trunnion-mounted rotary control valve designed for general control valve service. The QTCV-T1 features a rugged design that provides moderate noise attenuating capabilities with extended an turndown ratio. The QTCV-T1 features a side-entry, forged body and end closures that allows easy maintenance or repair of the control valve. The QTCV-T1 is ideal for use as a flow control valve or pressure control valve where predicted noise does not pose a problem. The QTCV-T1 is available in a variety of configurations from 4" (100 mm) bore to 36" bore (900 mm).
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Flow Patterns:
Hayward Manual Three-Way Ball Valves come standard with a two port "TW" ball allowing for three flow configurations within 180 degrees of rotation. With the bottom port as the inlet, the flow can be directed out the left port, out the right port or shut off. Hayward Actuated Three-Way Ball Valves come standard with a three port "NT" ball allowing for two flow configurations within 90 degrees of rotation. With the bottom port as the inlet, the flow can be directed out the left port or out the right port, there is no shut off position. A "TW" ball, used with with the proper electric actuator, adds what is typically called a "center off position" to the "NT" flow pattern of actuated valves. An optional "TP" ball, used with either manual or actuated valves, allows flow through all ports at the same time or flow shutoff.
True Union Design:
This makes these valves very easy to maintain by allowing for easy removal from a piping system without breaking down the piping connections. Just unscrew the three assembly nuts and lift the valve body out of the line.
Easy to Actuate:
A manual valve can be easily automated. Just remove the handle and install the optional actuator mounting kit. The mounting saddle is integrally molded into the valve body. For rock-solid actuator mounting, the valve incorporates a unique design whereby the mounting bracket mounts directly to the valve body. This assures proper alignment of the actuator to the valve without creating any damaging side loads to cause premature stem seal failure.
No Metal, No Corrosion:
Hayward all plastic three-way valves contain no metal parts. The valves will never fail because of corrosion and they do not require painting or epoxy coating to stand up to aggressive environments.
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Rugged, Compact Design:
Hayward's rugged, low cost QIC2 all plastic PVC ball valves incorporate many design features found only on higher cost ball valves. Features such as PTFE seats, full porting and a 150 PSI pressure rating are all standard on every size of QIC2 ball valves.
Cost Sensitive Applications:
The QIC2 ball valve is perfect for OEM and other applications that require a reliable ball valve at an economical price. The QIC2 valve has been designed and tested to make certain it will perform year in and year out in the most demanding applications without leakage or failure. The internal components of the QIC2 ball valve are completely encapsulated inside the one piece valve body which means that the valve never requires adjustment. The QIC2 valve is ready to be put into service right out of the box.
Lightweight and Compact:
QIC2 lowcost ball valves are designed to fit into spaces too small for other valves. They are about 1/3 the overall size of a true union ball valve and they weigh an average of 50% less. This makes them ideal for skid mounted and other applications where space and weight are critical considerations.
Can't Rust, Won't Corrode:
Their all plastic construction means that they will never fail, stick, or jam because of rusted or corroded parts. And they'll work in places and environments where metal valves must be painted or coated just to survive.
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Butterfly control valves suitable to control high flow rates. The floating or elastic seat rings and the multi-eccentric design together with the angle-seated vane guarantee zero leakage and a movement of the plug without stick-slip effects.
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Features:
Rated at 150 PSI
Full Body V-Notched Liner
Fully Supported Flange Bolt Holes
Stainless Steel, Blowout Proof Shaft
FPM, EPDM or Nitrile Liners
Wafer Body Design
Two-Year Warranty
Options:
Stem Extensions
Gear Operators
Electric or Pneumatic Actuators
PVDF Discs
2" Square Operating Nut
Titanium Shaft
Lug Body Design
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Remote Control Valve:
Hayward's Pneumatically Actuated Diaphragm Valves are designed for the reliable, remote control of liquids in piping systems. They are suitable for both clean and slurry type fluids at pressures up to 150 PSI.
Position Indicator:
You never have to guess if a Hayward Diaphragm Valve is in the open or closed position. A visual position indicator comes standard with every valve.
Powerful Actuator:
The actuator used to operate the valve, while lightweight and compact, is still powerful enough to open and close the valve at all internal pressures up to the full rated pressure of the valve,150 PSI.
No Corrosion Problems:
Hayward's Diaphragm Valves stand up to the most aggressive fluids and they will never rust, corrode or contaminate the process fluid. Even the actuator housing is plastic and requires no failure prone coating or painting.
Modular Options:
Several modular design options are available. This concept is very cost effective because the actuator can be configured exactly for a specific application using only the options required. You never have to pay for options you do not need.
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