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Your Proportional Valve Specialists

Proportional Valves

Mini Valves

Outlet Balanced Valves

Standard Valves

TEKNOCRAFT INC.

Proportional Valves

2

Table of Contents

Teknocraft Unique Designs ........................................... 3

Mini Valves ...................................................................... 6

Outlet Balanced Valves .................................................. 8

Standard Valves .............................................................10

Stainless Steel Standard Valves ..................................12

Teknocraft, Inc., 425 West Drive • Melbourne, Florida 32904Phone: (321) 729-9634 • Fax: (321) 768-8732

www.teknocraft.com • Email: [email protected]

Typical ApplicationsTeknocraft’s proportional flow control valves are presently used in a variety of industries which include medical, alternative fuels and energy generation. Our designs are utilized as blending valves in hospital ventilators and as fuel controls on alternative fuel vehicles, stationary engines in oil fields, turbine engines of energy cogeneration units and in fuel cells.

Three Styles OfferedThese valves are offered in three styles, the Mini, the Standard and the Outlet Balanced Standard Proportional Flow Control Valves (PFCV’s) with orifice sizes ranging from, 0.032” to 0.625”.

The Mini PFCV cover orifice sizes from 0.032” up to 0.156” and the Standard PFCVs cover orifice sizes from 0.147” to 0.625”. The mini valves are not outlet-pressure balanced; therefore, they are limited to applications where the outlet pressures are less than or equal to 25% of the inlet pressure. The Standard PFCVs can be ordered with outlet-pressure balancing and can operate satisfactorily with outlet pressures as high as 75% of the inlet pressure.

Teknocraft’s new breed of patented, solenoid operated, proportional flow control valves are unparalleled in the valve industry. Our proportional valve line outperforms the other types of proportional valves through unique design innovations.

Teknocraft’s proportional valves have no rubbing contact surfaces which gives them low hysteresis, high frequency response (250 Hz.), quick time response (less than 35 msec.) and long life (in excess of 200,000,000 cycles). Since no sliding friction is encountered, the electrical drive circuit can be as simple as a straight DC electrical signal, however, a pulse-width-modulated signal can also be used. These single-stage, 2-way poppet valves will perform well even at low pressure drops.

The poppet construction eliminates leakage within the working pressure ranges. The working fluid is isolated from the coil and other parts of the solenoid by an isolation diaphragm; thus, the fluid path is limited exclusively to the poppet area and the inlet and outlet paths. This feature make these valves suitable for both gases and liquids.

Proportional Valves

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Teknocraft Unique Designs

Selecting a Proportional Flow Control Valve - Technical ConsiderationsThe critical specifications when selecting a high performance proportional flow control valve are linearity, frequency response and hysteresis. Other important features are repeatability, power consumption, leakage, life expectancy and cost.

Engineers at Teknocraft have advanced the proportional valves by designing units that meet high performance specifications while keeping the valve simple enough to hold down costs. Using a unique solenoid construction, Teknocraft has achieved an unparalleled linearity, an exceptionally high frequency response and low hysteresis.

Isolation DiaphragmTeknocraft’s design features a rolling diaphragm which isolates the working fluid from the magnetic portion of the solenoid. This allows the same valve to be used for both liquids and gases.

Exceptional LinearityTeknocraft’s solenoid is truly proportional that is, the position of the solenoid armature (which also acts as the poppet) is extremely linear relative to the input current. As can be seen in Figure 1 page 14, linearity is maintained even at the high and low end of the input signal.

Low Power ConsumptionPressure balancing the inlet and outlet ports makes the valve very efficient in terms of power consumption. Another advantage to the Teknocraft design is the same low power solenoid can be used for various orifice sizes and inlet pressures.

Long Life and Low HysteresisThe armature is suspended between two flexible flat springs which eliminates any metal to metal contact and mechanical friction. The suspended armature is the key design element which yields long life and low hysteresis.

High Frequency ResponseAs can be seen in Figure 2 page 14, the suspended armature is much smaller and lighter weight than traditional plunger-type armatures. This lower-mass armature combined with no mechanical friction leads to a significantly higher frequency response than the competition.

Operates on Straight DC or PWMSince there is no mechanical friction, this valve can be operated from a straight DC power supply without any additional electronics. However adding a PWM signal further reduces the hysteresis to less than 1%.

High Turn-down RatioThe valve flow turn-down ratio (an indicator of the resolution of the valve) is in excess of 20,000 to 1 on Teknocraft’s standard proportional flow control valve and 10,000 to 1 on our mini proportional. This means Teknocraft’s valves can handle flows as high as 1,400 liters per minute down to 10 cc per minute while maintaining proportionality and linearity.

Proportional Valves

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Zero LeakageTeknocraft’s proportional valves are two-way poppet designs with elastomeric poppet material. This feature produces bubble tight sealing of the poppet on the orifice.

Outlet Balancing AvailableThis version of Teknocraft’s standard valve balances the outlet back pressure forces by using a lower balancing diaphragm. The bottom diaphragm counteracts the upward force on the poppet as the outlet pressure increase

Proportional Valves

General Performance Specifications

Duty Cycle: 100% continuous Drive Signal: Direct DC power 4-20 mA with controller 0- 10 VDC with controller PWM: Not required but will reduce hysteresis (controller also provides this function) Hysteresis: < 10% without PWM < 2% with PWM Outlet Pressure: Unbalanced models 25% Balanced models 75% of inlet pressure Orifice Sizes: 0.032” to 0.625” depending on model Port Sizes: 1/8” to 1/2” NPT depending on model Operating Pressures: Up to 120 psi depending on model Frequency Response: > 250 Hz Time Response: < 35 msec. Physical Dimensions: Standard up to 5.25” x 2” x 2” Mini 3.01” x 1.5” OD Weight: Standard 22 to 30 oz. depending on model Mini 14 oz. Temperature Range: Standard -40 to +250 F Mini -15 to +400 F Lead Wires: 22 AWG Leakage: 0 sccm Voltage: All models available in 6V, 12V, or 24V DC Working Fluid: Both liquids and gases compatible with wetted parts Valve Base Material: Black anodized aluminum and Stainless steel Elastomeric Materials: Standard - Nitrile Mini - Flourocarbon (FKM)

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6

Proportional Valves

Mini Valves

Part No.

Valve Type

DC Voltage

Orifice Size

PSI Range

Inlet Port Size

Outlet Port Size

Wetted Parts Material

209102 Mini PFCV 6 .032 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209103 Mini PFCV 6 .062 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209105 Mini PFCV 6 .093 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209106 Mini PFCV 6 .125 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209207 Mini PFCV 6 .156 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209107 Mini PFCV 12 .032 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209094 Mini PFCV 12 .062 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209108 Mini PFCV 12 .093 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209090 Mini PFCV 12 .125 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209208 Mini PFCV 12 .156 0-100 1/8 NPT 1/8 NPT 316 Stainless Steel209109 Mini PFCV 24 .032 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209093 Mini PFCV 24 .062 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209110 Mini PFCV 24 .093 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209022 Mini PFCV 24 .125 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel209209 Mini PFCV 24 .156 0-120 1/8 NPT 1/8 NPT 316 Stainless Steel

Stainless Steel Mini Valve Detail Information

Mini Proportional Control Valves• Orifice sizes from 0.032” up to 0.156

• Voltage range from 6 to 24 volts

• Wetted Parts Material: Stainless Steel, 316 Stainless Steel, Aluminum and Hard Anodized Aluminum

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Proportional Valves

Part No.

Valve Type

DC Voltage

Orifice Size

PSI Range

Inlet Port Size

Outlet Port Size


209226 Mini PFCV 6 .032 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209227 Mini PFCV 6 .062 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209228 Mini PFCV 6 .093 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209229 Mini PFCV 6 .125 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209230 Mini PFCV 6 .156 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209235 Mini PFCV 12 .156 0-120 1/8 NPT 1/8 NPT Hard Anodized Alum 209231 Mini PFCV 12 .032 0-100 1/8 NPT 1/8 NPT Aluminum209232 Mini PFCV 12 .062 0-100 1/8 NPT 1/8 NPT Aluminum209233 Mini PFCV 12 .093 0-100 1/8 NPT 1/8 NPT Aluminum209234 Mini PFCV 12 .125 0-120 1/8 NPT 1/8 NPT Aluminum209236 Mini PFCV 24 .032 0-120 1/8 NPT 1/8 NPT Aluminum209237 Mini PFCV 24 .062 0-120 1/8 NPT 1/8 NPT Aluminum209238 Mini PFCV 24 .093 0-120 1/8 NPT 1/8 NPT Aluminum209239 Mini PFCV 24 .125 0-120 1/8 NPT 1/8 NPT Aluminum209240 Mini PFCV 24 .156 0-120 1/8 NPT 1/8 NPT Aluminum

Aluminum & Hard Anodized Aluminum Mini Valve Detail Information

Ø 1.24

.51

1/8" NPT Inlet and Outlet

.30 Both Sides

6-32 UNC - 2B x .250

1.13

Bottom View

3.05

Ø 1.50

Proportional Valves

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Outlet Balanced Valves

Outlet Balanced Proportional Control Valves• Orifice sizes from 0.234” up to 0.625


• Wetted Parts Material: Hard Anodized Aluminum

Part No.

Valve Type

DC Voltage

Orifice Size

PSI Range

Inlet Port Size

Outlet Port Size


203301 PFCV Outlet Balanced 6 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum203302 PFCV Outlet Balanced 6 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203303 PFCV Outlet Balanced 6 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203305 PFCV Outlet Balanced 6 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum203309 PFCV Outlet Balanced 12 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum203310 PFCV Outlet Balanced 12 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Aluml203311 PFCV Outlet Balanced 12 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203313 PFCV Outlet Balanced 12 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum203317 PFCV Outlet Balanced 24 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum203318 PFCV Outlet Balanced 24 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203319 PFCV Outlet Balanced 24 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203321 PFCV Outlet Balanced 24 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum

Outlet Balanced Valve Detail Information

Proportional Valves

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Valve P/N DIM “A” DIM “B” DIM “C” DIM “D” DIM “E” DIM “F” DIM “G” DIM “H”203301 1/4” NPT 1.04 1/4” NPT 1.17 2.00 2.00 2.45 5.20203302 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203303 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203305 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203309 1/4” NPT 1.04 1/4” NPT 1.17 2.00 2.00 2.45 5.20203310 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203311 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203313 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203317 1/4” NPT 1.04 1/4” NPT 1.17 2.00 2.00 2.45 5.20203318 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203319 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20203321 1/2” NPT 1.04 3/8” NPT 1.17 2.00 2.00 2.45 5.20

1.62

1.62

Ø .266 THRUClearance For

1/4" Mounting Bolt

"A"OUTLET

"G"

2.53

"B"

"E"

"H"

"C"INLET

"F"

"D"

Proportional Valves

Standard Valves

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Part No. Valve Type DC Voltage

Orifice Size

PSI Range

Inlet Port Size

Outlet Port Size


203322 PFCV 6 .147 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum203323 PFCV 6 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum203297 PFCV 6 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203298 PFCV 6 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203300 PFCV 6 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum202610 PFCV 12 .147 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum202616 PFCV 12 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum202611 PFCV 12 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203306 PFCV 12 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203308 PFCV 12 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum202244 PFCV 24 .147 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum202618 PFCV 24 .234 0-120 1/4 NPT 1/4 NPT Hard Anodized Alum202505 PFCV 24 .316 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum203314 PFCV 24 .375 0-120 3/8 NPT 1/2 NPT Hard Anodized Alum202316 PFCV 24 .625 0-15 3/8 NPT 1/2 NPT Hard Anodized Alum

Standard Valve Detail Information

Standard Proportional Control Valves• Orifice sizes from 0.147” up to 0.625


• Can be ordered with outlet-pressure balancing and can operate satisfactorily with outlet pressures as high as 75% of the inlet pressure.

• Wetted Parts Material: Hard Anodized Aluminum

Proportional Valves

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1.62

1.62

Ø .266 ThruClearance for 1/4"

MountingBolt

"B"

"A"OUTLET

Ø 1.75

"G"

2.54

"H"

"E"

"D"

"C"INLET

"F"

Valve P/N DIM “A” DIM “B” DIM “C” DIM “D” DIM “E” DIM “F” DIM “G” DIM “H”202244 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25202505 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49202610 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25202611 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49202616 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25202618 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25203297 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203298 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203300 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203306 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203308 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203314 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203316 1/2” NPT 0.53 3/8” NPT 0.66 2.00 2.00 1.74 4.49203322 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25203323 1/4” NPT 0.50 1/4” NPT 0.50 2.00 2.00 1.50 4.25

Part No. Valve Type DC Voltage

Orifice Size

PSI Range

Inlet Port Size

Outlet Port Size


202612 SS PFCV 12 .147 0-120 1/4 NPT 1/4 NPT Stainless Steel 209126 SS PFCV 12 .234 0-120 1/4 NPT 1/4 NPT Stainless Steel 202613 SS PFCV 12 .316 0-120 3/8 NPT 3/8 NPT Stainless Steel 209128 SS PFCV 12 .375 0-120 3/8 NPT 3/8 NPT Stainless Steel 202614 SS PFCV 24 .147 0-120 1/4 NPT 1/4 NPT Stainless Steel 209127 SS PFCV 24 .234 0-120 1/4 NPT 1/4 NPT Stainless Steel 202615 SS PFCV 24 .316 0-120 3/8 NPT 3/8 NPT Stainless Steel 209129 SS PFCV 24 .375 0-120 3/8 NPT 3/8 NPT Stainless Steel

Stainless Steel Standard Valve Detail Information

Proportional Valves

Stainless Steel Standard Valves

Stainless Steel Standard Proportional Control Valves• Orifice sizes from 0.147” up to 0.375


• Wetted Parts Material: Stainless Steel

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Valve P/N DIM “A” DIM “B” DIM “C” DIM “D” DIM “E” DIM “F”202612 1/4” NPT 0.53 1/4” NPT 0.53 1.75 4.84202613 3/8” NPT 0.53 3/8” NPT 0.53 1.75 4.84202614 1/4” NPT 0.53 1/4” NPT 0.53 1.75 4.84202615 3/8” NPT 0.53 3/8” NPT 0.53 1.75 4.84209126 1/4” NPT 0.53 1/4” NPT 0.53 1.75 4.84209127 1/4” NPT 0.53 1/4” NPT 0.53 1.75 4.84209128 3/8” NPT 0.53 3/8” NPT 0.53 1.75 4.84209129 3/8” NPT 0.53 3/8” NPT 0.53 1.75 4.84

"A"

"B"

"E"

"F"

"C"

"D"

13

Proportional Valves

Proportional Valves

14

Fluid InFluid Out

Lead Wires

Coil And Housing

Biasing Spring Connector

Plunger

Suspension SpringIsolating Diaphragm

Poppet Assembly

Elastomeric Seal

Valve Base

FIGURE 2SCHEMATIC CROSS SECTIONAL VIEW OF TEKNOCRAFT VALVE

FIGURE 1TYPICAL STANDARD PROPORTIONAL VALVE FLOW CURVES

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