Process Technology

Wet Process Heating and Cooling Equipment

LufranTM Ultra Pure Water Heater by Process Technology

Product Features and Benefits:

· Outstanding MTBF: Documented, real-world "mean time between failures" of nearly 10 YEARS!
· Fast response: Heating elements are in direct contact with the DI water for maximum efficiency and fast response.
· Non-contaminating: Minimum amount of exposed surface area. Class 100 cleanroom assembled.
· Sizes for any application: 24 kW to 260 kW standard. Heaters can be utilized in combination.
· Safe operation: Redundant safety features ensure long, trouble-free life.
· Able to handle difficult applications: Capable of temperatures up to 95° C and pressures up to 100 PSIG at essentially any flow rate.
· Better by design: More responsive than steam systems. Significantly lower maintenance costs and higher efficiency than infrared systems. Field proven reliability.
· Compact configuration: Space-conscious design minimizes footprint requirements.
· Maximized uptimes: Uptimes of greater than 99% can be expected.
· Easy tool interface: Easy integration with existing tools with a variety of interface options.
· Proven power switch gear: Solid state relays standard.
· Monitored heater integrity: Patented heater purge ensures heater integrity and longevity.
· Heater expertise you can trust: Thousands of heater installations worldwide. Experienced engineering and worldwide field service support.

 

Lufran UPDI Heater Specifications:
HEATER Patented resistive heating system
SIZES 24kW to 260kW standard.
VOLTAGES Up to 600 volt (three phase) available, 50/60 Hz
TEMPERATURE LIMIT 95° C, depending on operating conditions
TEMPERATURE ACCURACY +/-.3° C, depending on operating conditions
FLOW RATE 1 LPM (.25 GPM) to 200 LPM (50 GPM)
EFFICIENCY > 99%
PRESSURE RATING 100 PSIG (689 kPa) maximum operating
MTBF 9.39 years > 99% uptime
TEMPERATURE REGULATING SYSTEM Distributive zero crossing SSR switched by PLC based DACTM “Demand Anticipation Control” software
TEMPERATURE SENSORS “J” type thermocouple (process), “E” type (element over-temperature), or customer specified
HEATING ELEMENT Patented design utilizing a precision resistance wire, 15 w/in2 (2 w/cm2) watt density
WETTED SURFACES • Heating elements: continuous virgin PTFE Polytetrafluoroethylene (82%)
• Chamber and plumbing: PVDF Polyvinylidine Fluoride (18%)
• Chemraz® o-rings
• No wetted metal or coated metal parts
ELEMENT GAS PURGE Removes permeation to extend element life expectancy.  Monitors integrity of element tubing.
EXHAUST VENTILATION Not required
STANDARD FEATURES • DAC™ “Demand Anticipation Control” (run by a PLC)
• EMO circuit (local and remote)
• Ground fault protection (GFP)
• Fused 24 VDC control circuitry
• CE, ETL, and Semi S2/S3 compliant
• Disconnect
• Data logging
• Remote interface
• Powder coated cabinet with sump leak detection
• Capacitive liquid level sensor for element protection
• Heater over-temperature circuit with independent limit control
• Humidity monitor to verify element tubing integrity
• Purge flow switch to verify element purge
• System pressure monitor
• Process high temperature alarm
• PVDF mechanical pressure relief valve set @ 100 PSIG (689.5 kPa)
OPTIONS • Custom communication protocol (Ethernet, DeviceNet, RS232, RS485, Mod Bus., etc.)
• Color touch screen
• Expanded remote interface signals
• Digital resistivity monitor
• Remote flow monitor signal
• Extended warranty

 

DACTM (Demand Anticipation Control):

· Extremely precise temperature control and stability: Utilizes a patented temperature/flow algorithm to calculate exact heater output requirements. Calculates and compares:

Required percentage power
Inlet fluid temperature
Outlet fluid temperature
Flow rate
Actual power applied
Low temperature boost
High temperature shut-off

· Quick reacting: Responds instantly to flow changes rather than simply monitoring outlet temperature.
· Better temperature stability: Responds quickly to recipe (flow and temperature) changes.
· Water conservation: Faster heat up and recovery means less water usage.
· Friendly operator interface (User friendly HMI): Touch pad monitor with easy to understand commands.

SIZING

To determine wattage required, use one of the following equations:

(Delta°C X LPM)

÷ 14.3184 = kW

(Delta°C X GPM)

÷ 3.784 = kW

(Delta°F X GPM)

÷ 6.81 = kW

Example: (55° C x 15 LPM) ÷ 14.318 = 65 kW

55°C temperature rise (delta) x 15 liters per minute divided by 14.318 = 65,000 watts

CONSULT OUR FACTORY FOR DETAILED SIZING INFORMATION AND APPLICATION ASSISTANCE

 

HEATER SELECTION MATRIX (by standard heater sizes)
FLOW RATE TEMPERATURE RISE (DIFFERENTIAL) degrees C/degrees F
(LPM/GPM) 35/63 40/72 45/81 50/90 55/99 60/108 65/117 70/126 75/135
5/1.3 024 024 024 024 024 024 024 036 036
10/2.6 036 036 036 036 052 052 052 052 052
15/3.9 036 052 052 052 065 065 072 105 105
20/5.3 052 065 065 072 105 105 105 105 105
25/6.6 065 072 105 105 105 105 130 130 144
30/7.9 105 105 105 105 130 130 144 210 210
35/9.2 105 105 130 130 144 210 210 210 210
40/1.6 105 130 130 144 210 210 210 210 210
45/11.9 130 130 144 210 210 210 210 260 260
50/13.2 130 144 210 210 210 210 260 260 260
55/14.5 144 210 210 210 210 260 260 * *
60/15.8 210 210 210 210 260 260 * * *

· Read about the ADVANTAGES OF USING HOT DI WATER

· Solid State Relay Upgrade for models purchased prior to 1998

Viton® is a registered trademark of DuPont Dow Elastomers.
Chemraz® is a registered trademark of Greene, Tweed and Company.


· DOWNLOAD THE ULTRA PURE WATER HEATER BROCHURE IN .PDF FORMAT (389 KB)

· DOWNLOAD THE INLINE WATER HEATER SPECIFICATION SHEET IN .PDF FORMAT (162 KB)

You will need the Adobe Acrobat program to view the above documents. If you do not have Adobe Acrobat and would like to download it for free, press the button below.

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For more information on this, or any other Process Technology product, please contact our offices (toll free within the United States or Canada) for the distributor nearest you, or visit our contact page.

U.S./Canada: 800-621-1998
Worldwide: 440-974-1300


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