Technology Leader and Total Integrated Solution Provider
Ultrasonic flow measurement is among the best & most accurate technology available these
days. It is widely accepted &
prominently used across the industries due to its non-cohesive nature with the flow media.
It is also non-effected in
high magnetic field zones, where other technologies like electromagnetic & Boltzmann’s
turbine technologies might have a
challenge.
Our Shenitech ultrasonic flow meters work on Transit time principle which ensures high
accuracy. Our ultrasonic flow
meters are used not only for domestic
water application but also in dirty water having high TDS, in Sewerage treatment & effluent
treatment application.
Transit time principle is annotated as below.
“ It is the time difference taken by two UH frequency pulses to reach the diametrically
opposite ends of the pipe, which
is related to the velocity of the fluid media inside pipe in direct proportion ”
Suppose ‘T1’ is the time taken by pulse to travel downstream to the flow of media & ‘T2’ is
the time take by the pulse
to travel upstream of the flow media moving unidirectional with velocity ‘v’ , then time
difference ‘δT’ is related to
velocity as
(T2 – T1) = δT Or δT α v Or δT = k * v Or δT/k = v
Cross section area of pipe is ‘A’
Then Flow rate ‘Q’ can be calculated as
Variable Air Volume (VAV) Boxes are required to control air supply as per the
requirement in an air distribution network
of air flow in a particular zone. VAV Boxes are used very frequently in office space,
commercial towers, conference
rooms & control area to control temperature & try to achieve a particular set point given to
its thermostat.
VAV Boxes by varying airflow can control various parameters like
temperature, CO2 level, positive differential pressure,
depending upon its application. It also attains substantial energy saving by blocking access
air into the duct & hence
in-turn low rpms of AHU fans, unlike constant air volume system which is not capable of
achieving high energy
efficiency.
NinthWave is associated with Honeywell Automation
to bring out the best quality Variable Air Volume system to its
customers. WE became proud ‘exclusive channel partners for VAV system’ of Honeywell
Automation for complete country in
year 2014.
We provide Pressure Independent type Variable air volume boxes, factory fitted with a
microprocessor DDC controller,
damper, damper actuator, cross flow velocity sensor with differential pressure transmitter,
thermostat and in-built step
down transformer. VAV boxes are calibrated in factory & undergo Honeywell’s stringent
quality check tests before being
shipped out of factory.
We can also customize VAV boxes as per the requirement of customer like, single skinned,
double skinned, by-pass, multi
leaf, with heating element etc.
VAV controller comes with BACNet® MS/TP communication standard, which
is widely accepted for third party integration across the country. We also provide tested
integrators for VAV
integration.
In past years we have successfully commissioned VAV system at so many prestigious
multi-national client offices across
the country, catering to their customized requirements.
Applications successfully commissioned are briefed below.
Zone Temperature Application
This is the most common type of application, required to control temperature by varying air
flow. The most critical of
them were heating & cooling application, where air temperature changes as per the weather
condition, & hence VAV
operation also reversed to achieve a set point. Our technical team has mastered these
applications to ensure proper
operation of the system.
Fresh Air/ Ventilation (Demand Control Ventilation) Application
In Demand Control Ventilation, a VAV operates to limit & measure the air flow required to
maintain a CO2 differential
level in a particular zone. A high CO2 level can cause lower work efficiency of the work
force. Also access fresh air
intake in an AHU can decrease its energy efficiency. In order to control an optimum level of
CO2 differential level, a
Variable Air Volume Box finds its application, it measures CO2 level & modulate accordingly
to maintain a CO2 level
inside a work space. We have commissioned systems having such requirement across the country
successfully.
Our controllers are fully compatible to maintain VOC level, rH level etc. to provide a
controlled environment.
Differential Pressure Application
We have also come across differential pressure application, where a VAV is placed in return
duct, & it allows
maintaining a higher pressure in the controlled area. This application is generally used in
controlled environment like
clean room, drug formulation chambers, storage cabins, Server rooms etc. Applying VAV
system, an efficient dust free
system can be provided by maintaining a positive pressure inside the zone.
We have undertaken these critical application & successfully commissioned them.
VAV Box CFM Range: We offer an extensive range of CFMs from 62 cfm to 8000 cfm
Unit Sizes | I/s Min-Max | CFM Min-Max |
---|---|---|
6 | 29 - 212 | 62 - 450 |
8 | 52 - 378 | 110 - 800 |
10 | 85 - 637 | 180 – 1350 |
12 | 127 - 991 | 270 – 2100 |
14 | 189 - 1510 | 400 – 3200 |
16 | 269 - 1888 | 570 – 4000 |
24x16 | 1416 - 3775 | 3000 – 8000 |
Feature | Function | Benifit |
---|---|---|
Universal Mounting plate | Accommodates different actuator sizes. | Allows use of any sized OpenAir actuator on same valve body with no additional linkage |
Flow optimizer | Generates equal percentage flow characteristic for proper water coil application | Provides linear heating response from control coil – aids in proper loop control |
Actuator mounting standoff and thermally isolated bracket | Provides a thermal barrier between actuator and valve | Allows actuator to be used in higher temperature applications |
Manual override handle | Enables hand operation of valve | Allows operator to manually operate valve in event of a power failure |
Higher close-off | 200 psi close-off for all line sizes | Less worry about close-off pressures; matches or exceeds competitors’ close-off pressure |
Expanded Cv offering | Provides more options for perfect matching of valve with control loop | Better sizing of valves to the job requirements |
Full port models available at each line size | Perfect for on/off applications | Allows use of a consistent product line through all applications |
Stainless steel or chrome plated ball | Provides performance and cost choices | Able to meet stainless steel specifications where required, while offering cost effective chrome plated option across entire product line |
GQD spring return actuators for ½ and ¾ inch valves | Lower torque, lower priced actuator for small valves | Competitive performance and pricing |
Utilizes OpenAir Series of direct-coupled actuators | Provides quarter-turn (90°) rotation of valve stem and ball | Proven actuation for precision control of ball valves |
Double O-ring blow-out proof stem seal | Provides redundant leakage protection and positively protects against blow-out | Ensures long life and consistent performance in the most demanding environments |
Actuator may be indexed into four positions | Actuator may be mounted to valve in 90° increments | Provides flexibility in installation to adapt to space constraints |
Feature | Function | Benefit |
---|---|---|
Molded-in resilient seat | Molded-in resilient seat | Reduces energy costs associated with media leakage |
Lugged body | Drilled and tapped two-sided connection | Allows isolation and removal of downstream piping while system is pressurized |
Round polished disc | Provides 360° concentric seating, minimum flow restriction, lower torque requirement, and longer seat life | @- Enables superior close off, while decreasing energy losses - Lower torque requirements allow use of lower cost actuators - Provides years of trouble-free service |
Upper and lower inboard bronze bearings | Precisely aligns disk and reduces friction | Requires lower torque and maintains precise alignment for positive close off |
Thru-stem design | High strength and positive disk control, as well as standardized end connection | Increases control and allows for various actuator configurations |
Extended neck | Provides additional clearance | Allows full insulation of piping and maintains clearance for flanges |
Heavy duty corrosion resistant top bushing | Supports stem against side loads | Superior control and long life |
Featuure | Function | Benefit |
---|---|---|
Forged Brass valve body | Higher pressures in the forging process align the grains of metal | Smoother, not as heavy as cast Bronze valves for same ANSI 250 pressure class rating |
Standard actuator connection | Only hand tightening requiredEliminates separate actuator-to-valve linkage | - No tools required to install - Fewer parts to order, install, and maintain - Simpler product selection - Easy Pneumatic to Electronic interchangeReduces installation time |
Standard stroke-5.5 mm | Precise balance of stroke vs. performance | Allows high performance flow control with minimal product size |
Spring range built-in to valve (1/2” to 1” line sizes only) for pneumatic actuator | Allows single part number for actuator | Reduces selection complexity and inventory for service parts |
2-way (Normally Open/Normally Closed) and 3-way (Mixing) | Valves available for all applications | Allows consistent use of product throughout a system |
Choice of Brass (25 psi) or Stainless (50 psi) trim | Provides a range of performance and cost | Single product family may be used in demanding performance situations and also be cost competitive in lower stress environments |
½” to 1” line size, 0.40 to 25 Cv | Large range of end connection options | Minimizes the need for reducers and ancillary pipe fittings |
Meet ANSI/FCI 70.2 Standard Class IV valve seat leakage specification | Valve seat leakage is less than 0.01% of Cv at rated close-off pressure | Tight shut-off of controlled device eliminates overheating/cooling and reduces energy consumption |
Parabolic control plugs | Provides accurate flow control curves at an affordable price point | Best price/performance combination |
Double O-ring packing construction | Single packing for water applications 32°F to 250°F, 15 psig steam | One valve to stock |
No-service stem packing | Long-life packing, lubricated for life of valve | Minimize service time – valve is disposable at end of service life |
Choice of end connections | Union fitting options allow easy service replacement of worn valve assemblies | - Basic FxF NPT valve is price competitive with all industry valves - Fitting options allow for easy access to valve components by quickly removing valve from line |
Feature | functions | Benefits |
---|---|---|
Pressure independent sizing | - Eliminates need for calculating Cv using flow and pressure drop. | - Simplified valve sizing. |
Adjustable flow limiter | - Analog scale provides flexible adjustment of maximum flow allowed through the
device. - Eliminates over-supply. - Locking nut prevents accidental changes to maximum flow setting. |
- Energy cost savingsOptimized performance. - Simplified balancing for fast and trouble free commissioning. - Commissioning cost savings. |
Mechanism for maximum flow setting is independent of valve stroke | - Always maintains full stroke of valve. | - Greater control resolution and precision - Excellent control accuracy. | Stroke valve design | - Uses standard Siemens SS Series, SQS, SAX, and new SQV globe valve actuators. - Eliminates deadband associated with ball valve actuators at beginning and end of stroke. | - Common actuator wiring simplifies installation. - Greater control over the whole stroke of the valve and actuator. |
Automatic pressure regulator | - Automatic balancing and pressure independent - Maintains constant flow through the valve at any given control setting regardless of the pressure fluctuations in the system. - Always maintain maximum valve authority. - Avoid over- and under-flow. |
- Energy cost savings
- Easier balancing and shorter commissioning times. - Commissioning cost savings. - Eliminate “hunting”, increased actuator life due to fewer repositions. - Greater comfort due to better control. |
Automatic balancing | - Adjustable flow limiter and automatic pressure regulator automatically balance the system loop. | - System expansions do not require re-balancing of existing system. | P/T Ports | - Measure differential pressure across the device. - Standard on flanged valves. - Optional accessory kit for threaded valves. |
- Easily validate that the device is operating in the design range for pressure
independent functionality. - Saves time troubleshooting problems. |
Proven Actuator families | - Familiar, rugged and reliable Siemens actuators have been installed in well over a million applications worldwide. | - Ensure highest levels of customer satisfaction. |
# | Description | Material |
---|---|---|
1 | Handle | Chrome Plated iron |
2 | Nut | Brass PlatedIron |
3 | Spring Lock Washer | Plastic |
4 | Gland Nut | Brass |
5 | Stem | Brass Plated Iron |
6 | Ball | Chrome Plated Brass |
7 | Body | Forged Brass |
# | PART NAME | MATERIAL |
---|---|---|
1 | Body | IS:210 Gr FG200 CI |
2 | Seat | EPDM |
3 | Plates | D.I Lapped |
4 | Shaft | ASTM A 276, GR SS410 |
5 | Spring | AISI 302 |
6 | O Ring | Nitrile |
7 | Plug | M.S. ( Chrome Plated ) |
8 | Fastner | Stainless Steel |
# | DESCRIPTION | MATERIALS |
---|---|---|
1 | Body | QT450-10 |
2 | Jacob | Thornton |
3 | Bonnet | QT450-10 |
2 | Gasket | EPDM |
3 | Filter Screen | SS304 |