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Series 2000VA Flanged Hi-Flow™ Control Valves

Bronze, Stainless Steel or Iron, Excellent Control of Steam, High Flow Capacity, Linear or Equal Percent Trim
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Hi-Flow ValveThe Hi-Flow™ control valves are pneumatic operated process control valves for use with controllers to regulate the flow of a process variable; that is steam, water, oil, gas, etc.  Hi-Flow™ valves are perfect for applications in food processing, dairy production, HVAC, chemical/industrial processing, tire production, textile production, foundry operations, oil drilling rigs, automotive, and more.

Hi-Flow™ control valves were originally designed and manufactured by Taylor and are well known as a durable and dependable valve. Dwyer Instruments acquired the Hi-Flow™ line in 1991 and has continued manufacturing this great quality valve under the W.E. Anderson Division name.  Dwyer Instruments offers units from stock and an exceptional lead time on made-to-order units.

W.E. Anderson Hi-Flow™ control valves are single seated, top or cage guided globe valves - probably the simplest, from construction standpoint, yet most versatile control valve in The Hi-Flow™ control valve can fit applications with a smaller size since the valve has a greater flow capacity than most conventional valves of the same size. 

Coupled with the high flow capacity, the Hi-Flow™ control valve maintains a wide rangeability of 50:1 to insure precise control. Heavy duty Hi-Flow™ control valves are ruggedly constructed of the highest quality materials, precision machined, and performance tested to assure years of trouble free service. Standard packing consists of PTFE V-rings and wiper to minimize friction without leakage at high operating pressures. Available in brass, iron, 316 SS body, trim is 316 SS with all welded plug construction provide superior durability and corrosion resistance.

  • Wide Rangeability of 50:1  This is the ability of a control valve to control from 100% of Cv down to low values of Cv.  The Hi-Flow™ valve offers good control at extremely low flow rates, which is particularly valuable when used on batch processes where initial flow is high, but the flow rate is low when the control point is reached.
  • Exceptional shut-off and leak rate that meets ANSI/FCI 70-2 Class IV (0.01% of Cv in the closed position).
  • Selectable fail safe condition with Air-to-Raise or Air-to-Lower actuators and Push-to-Open or Push-to-Close valve bodies.
  • High Capacity: Hi-Flow™ valves have greater flow capacity than most conventional valves of the same size, offering the ability to use a smaller size valve that is less expensive.
  • Packing: Spring backed Teflon® V-rings to assure a tight seal on the stem.
  • Adjustable Springs: Springs are adjustable in the field for proper shut-off and control range.
  • Linear or equal percentage flow characteristics.
  • Low flow options of restricted trim or needle plug.
  • Removeable and replaceable seat ring: Seat ring screws into the body of the globe valve.  The seat ring can be removed and replaced as the seat ring wears with use.  Replacing the seat ring is much more cost effective than replacing the entire globe valve body.
  • Easy Maintenance: Actuators can be removed as one part from the globe valve body without removing the valve from the line.  Actuators of different sizes and actions can be field replaced and interchanged on all valve sizes.

Actuators

Actuator Sizing:

The Hi-Flow™ valve incorporates a Lin-E-Aire pneumatic actuator that automatically controls the valve. The opening, closing and throttling of the valve plug in the valve body is accomplished by varying the air pressure to the diaphragm in the actuator.

There are two types of Lin-E-Aire actuators: Air-toLower and Air-to-Raise. The selection of the type depends upon the desired operation on loss of air supply.

The Lin-E-Aire actuator size and spring are selected to meet the requirements of the application. There are three sizes of actuators available. The actuator must be sized to be large enough to shut-off the valve. The shut-off pressure is the difference between the inlet (upstream) and outlet (downstream) pressure when the valve is closed. If there is no outlet pressure, then the shut-off pressure is just the maximum upstream pressure. The charts on pages 18 to 20 show example model numbers with the maximum shut-off pressure for the three different actuator sizes. The column labeled MAX USP (maximum upstream pressure) is the maximum pressure that the actuator can shut-off against.

Standard operating range is 3 to 15 psig (.21 to 1.0 bar). The spring size is automatically chosen at the factory to provide a 3 to 15 psi operating range at the customer provided shut-off pressure. When ordering a valve the shut-off pressure must be given. The spring has an operating range of shut-off pressures that it will operate, and the Lin-E-Aire® actuators have range spring adjustments for adjusting the valve in the field. It is best to adjust the valve in the application so that it operates at the particular shut-off pressure present.

Trim Styles

Flow Characteristic

The Hi-Flow™ valve is a control valve that is regulating the amount of flow through the valve. How the flow through the valve changes as the valve opens corresponds to the trim style, or flow characteristic, of the valve. The trim style is the shape of the plug in the valve. As the valve opens, the plug shape changes the size of the valve opening, which changes the flow rate through the valve.

There are two types of trim styles, or flow characteristics available in the Hi-Flow™Tm Series; Linear (Fig. 1) and Equal Percentage (Fig. 2). With Linear trim, equal increments of plug travel provide equal increments of flow change. With Equal Percentage trim, equal increments of plug travel provide uniform percentage increments of flow change. The correlation between plug travel and flow is shown in Figure 3.

Choosing the optimum valve characteristic may require a detailed study of the process equipment and its operating conditions. However, in many applications, any valve will operate well and the characteristic need not be considered. Typically these are applications were load changes are small (maximum load no greater than three times the minimum).

A linear valve characteristic is nearly always desirable when the major load change in the process requires merely a change in flow through the valve. Such a load change could be a controller set point adjustment or some other load in the process itself calling for a new valve position. For example, when water is being heated by steam supplied through a control valve, a change in cold water temperature or in the rate of water throughout will call for a linear valve. On the other hand, fluctuations in steam pressure call for an equal percentage valve. There is no ideal solution and the user must decide what is best for the application.

Reduced Flow or Restricted Trim

The Hi-Flow™ Series offers restricted, a smaller port size, trim in the 3/4" and 1" size valve body. This allows a reduction in the flow rate through the valve without a reduction in pipe size. The 1" valve size is available with the 3/4" and 1/2" trim sizes, and the 3/4" valve size is available with the 1/2" trim size. The restricted trim is available in Linear or Equal Percentage characteristic.

The Hi-Flow™ Series offers needle plugs that reduce the orifice size from full port to a much smaller area size. Needle plugs are ideal for control of small flow rates and come in Linear or Equal Percentage characteristic. Needle plugs are available in the 1/2", 3/4", and 1" body sizes. Linear characteristic needle plug sizes are 3/32", 1/16", and 1/32".  Equal Percentage characteristic needle plug sizes are 3/8", 5/16", 1/4", 3/16", and 1/8".

SPECIFICATIONS
VALVE:
Service: Compatible liquids, gases, and steam.
Line Size: 1/2" to 4".
Body Style: 2-way or 3-way globe.
End Connections: 1/2" to 2" female NPT, 1-1/2" to 4" flanged.
Pressure Limit: Iron or Bronze Body - 250 psi (17.2 bar), 316 SS Body - 300 psi (20.7 bar).
Wetted Materials: Body: iron, bronze, or 316 SS; Trim: 316 SS; Packing: PTFE.
Temperature Limits: 20 to 400°F (-7 to 204.4°C).
ACTUATOR:
Type: Pneumatic spring/diaphragm.
Control Signal: 3 to 15 psi (0.21 to 1.0 bar) standard. Custom ranges available.
Maximum Supply Pressure: 220, 222, and 230: 100 psi (6.89 bar). 221, 223, 231, and 233: 50 psi (3.45 bar).
Air Connection: 1/4" female NPT.
Temperature Limit: 150°F (66°C).
Product Model Chart
EXAMPLE 2001 V N 3 2 230 2 165EL Series 2001VN32-230-2-165EL, 2-way, Push-to-Close Valve, 3/4" NPT, single seat, 1/8" needle valve plug, bronze body, 316 SS trim, Lin-E-Aire®, air-to-raise actuator, with electric linear positioner.
VALVE TYPE
& SIZE
2000
2001
2002
2003
2004
2005
2006
2007
2008
2010
2011
2012
2013
2014
2015
2016
2017
2018
3000
3001
3002
3003
3004
3005
3006
3007
3008
2-way, 1/2" NPT, Push-to-Close Valve
2-way, 3/4" NPT, Push-to-Close Valve
2-way, 1" NPT, Push-to-Close Valve
2-way, 1-1/4" NPT, Push-to-Close Valve
2-way, 1-1/2" NPT, Push-to-Close Valve
2-way, 2" NPT, Push-to-Close Valve
2-way, 2-1/2" NPT, Push-to-Close Valve
2-way, 3" NPT, Push-to-Close Valve
2-way, 4" NPT, Push-to-Close Valve
2-way, 1/2" NPT, Push-to-Open Valve
2-way, 3/4" NPT, Push-to-Open Valve
2-way, 1" NPT, Push-to-Open Valve
2-way, 1-1/4" NPT, Push-to-Open Valve
2-way, 1-1/2" NPT, Push-to-Open Valve
2-way, 2" NPT, Push-to-Open Valve
2-way, 2-1/2" NPT, Push-to-Open Valve
2-way, 3" NPT, Push-to-Open Valve
2-way, 4" NPT, Push-to-Open Valve
3-way, 1/2" NPT, Push-to-Close Valve
3-way, 3/4" NPT, Push-to-Close Valve
3-way, 1" NPT, Push-to-Close Valve
3-way, 1-1/4" NPT, Push-to-Close Valve
3-way, 1-1/2" NPT, Push-to-Close Valve
3-way, 2" NPT, Push-to-Close Valve
3-way, 2-1/2" NPT, Push-to-Close Valve
3-way, 3" NPT, Push-to-Close Valve
3-way, 4" NPT, Push-to-Close Valve
VALVE SEAT V
W
2-Way Single Seat
3-Way Dual Seat
VALVE PLUG TYPE A
L
N
S
Linear
Needle
Equal % Needle
Equal %
BODY MATERIAL 1
3
4
Ductile Iron
Bronze
316 Stainless Steel
TRIM MATERIAL 2 316 Stainless Steel
ACTUATOR 001
002
003
004
220
221
222
223
230
231
233
Evenaction, Air-to Lower, 9 in² (2-way only)
Evenaction, Air-to Lower, 21 in² (2-way only)
Evenaction, Air-to Lower, 33 in² (2-way only)
Evenaction, Air-to Lower, 59 in² (2-way only)
Lin-E-Aire®, Air-To-Lower, 20 in²
Lin-E-Aire®, Air-To-Lower, 45 in²
Lin-E-Aire®, Air-To-Lower, 45 in²
Lin-E-Aire®, Air-To-Lower, 80 in²
Lin-E-Aire®, Air-To-Raise, 20 in² (2-way only)
Lin-E-Aire®, Air-To-Raise, 45 in² (2-way only)
Lin-E-Aire®, Air-To-Raise, 80 in² (2-way only)
NEEDLE PLUG PORT SIZE 2
3
4
5
6
7
8
9
1/8" Needle Type "N" Plug Only
3/16" Needle Type "N" Plug Only
1/4" Needle Type "N" Plug Only
5/16" Needle Type "N" Plug Only
3/8" Needle Type "N" Plug Only
1/32" Linear Type "L" Plug Only
1/16" Linear Type "L" Plug Only
3/32" Linear Type "L" Plug Only
OPTIONS

L0
L1
165EL
165NL
HRF
LRF
Z10
Z18
J2
J3
J7
J8
J9
J10
RL
2813-WP
2816-WP
2913-E
2916-E
Reduced Port: 3/4" to 1/2" (2001 only) or 1" to 1/2" (2002 only)
Reduced Port: 1" to 3/4" (2002 only)
Electric Linear Positioner
Pneumatic Linear Positioner
High Range Flange, Class 250, 300
Low Range Flange, Class 125, 250
2-10 Operation Pressure
10-18 Operation Pressure
Spring Loaded Graphite Packing
Lubricated Graphite Packing with Lubricator
TFE V-Ring Packing for Vacuum Service
Double TFE V-Ring Packing for Positive Pressure
Double TFE V-Ring Packing for Negative Pressure
Double TFE V-Ring Packing for Alternating Positive and Negative Pressure
Reduced Leakage
Factory Mounted I/P, 3-5 psig
Factory Mounted I/P, 6-30 psig
Factory Mounted I/P, 3-5 psig, Explosion-proof
Factory Mounted I/P, 6-30 psig, Explosion-proof
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