NOH™ (Non-Obstructing Heater)
NOH™ (Non-Obstructing Heater)
Hydro-Thermal’s innovative NOH’s straight tube design allows unrestricted flow, prevents pressure drop and heats slurries without plugging or fouling. The NOH’s rugged design and materials of construction allow it to handle abrasive materials minimizing wear on internal parts.
Pressure & Temperature
- Max Pressure – 300 PSIG / 20.7 Barg
- Max Temperature – 400°F / 204°C
Flow Turndown
- 5:1 Liquid Turndown
Product Inlet / Outlet & Steam Flange
- 300# raised face flanges designed
- (per ANSI B16.5) with lugged connections
Controls
- NOH can be locally controlled from the panel or from DCS. For Distributed Control System (DCS), either Ethernet IP, Modbus TCP, or limited analog and digital must be utilized.
- Servo Motor actuator utilizes tight actuation control for explosion and non-explosion proof processes
- Robust 300# stainless steel cast construction designed to withstand the most severe applications
- Unrestricted flow path prevents clogging or fouling of product
- Patented Diffuser Technology for high velocity steam injection
- Small footprint and compact design saves space and eliminates costly retrofit work
- Straight tube design prevents pressure drop for continuous flow
- Eliminates clogging of solids for unrestricted flow, saving maintenance and downtime
- Compact, quiet, and noise-minimizing design saves space, eliminates costly retrofit work and helps maintain operational productivity
- Rugged #300 stainless steel cast construction handles abrasive
- materials (such as sand or grit) or large particulate/fibrous materials
- No special tools needed for maintenance
- Reduced energy costs through enhanced process conditions
- Reduction in steam leakage
- Large range of operation
- Trim heating control for high turndown
- Sludge Heating
- Black/Green/White Liquor
- Rendering Plants & Facilities
- Paper Stock Heating
- Aseptic Applications (Tomato Paste)
- General Water Heating
- Food
- Wastewater
- Chemical
- Pharmaceuticals (Personal Care & Bio Tech
- Energy & Utilities (Oil & Gas)
- Paper & Pulp
- Renewable Fuel (Ethanol)
Other
- Mining (Processing Facilities)
- Metal
- Automotive
Sizing & Process Parameters
| NOH02 | NOH04 | NOH08 | NOH12 | |
| Steam Inlet (in./mm) | 3.0 76.2 | 6.0 152.4 | 8.0 203.2 | 12.0 304.8 |
|---|---|---|---|---|
| Steam Drain (in./mm) | 0.5 12.7 | 1.0 25.4 | 1.0 25.4 | 1.0 25.4 |
| Estimated OAL Length (in./mm) | 12.0 304.8 | 10.0 482.6 | 24.0 609.6 | 33.5 850.0 |
| Estimated CL to Steam Flange (in./mm) | 5.0 127.0 | 6.5 165.1 | 8.0 203.2 | 11.66 296.2 |
| Min. Flow (GPM/m3/hr) | 30.0 6.8 | 110.0 25.0 | 455.0 103.4 | 1,035 235.1 |
| Max. Flow (GPM/m3/hr) | 175 39.7 | 735 167.0 | 3,063 693.4 | 8,900 1567.2 |
| Estimated Weight (lbs./kg) | 220 100 | 450 204 | 850 421 | 1900 862 |
Larger sizes are available upon request – contact the Hydro Thermal team for more information.
Related Literature
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