Valli Aqua And Process Instruments
Valli Aqua And Process Instruments
Ambattur Industrial Estate, Chennai, Tamil Nadu
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Transmitters and Detectors

Manufacturer of a wide range of products which include natural gas detector, dwyer ms magnesense differential pressure transmitter, dwyer carbon dioxide & temperature transmitter, dwyer magnehelic differential pressure gauge, dwyer differential pressure transmitter and dwyer carbon monoxide transmitter.

Natural Gas Detector

Natural Gas Detector
  • Natural Gas Detector
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Approx. Price: Rs 12,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Power SourceBattery
Display TypeDigital
Response TimeLess 5 Second
Gas TypeNatural Gas,Combustible Gas
BrandTrace Auromation

Features:

  • High adaptability to the ambient
  • Robust construction
  • Optimum quality


Other Details:

  • The standard system consist of a compact electronic module housed in a explosion proof and weatherproof aluminum die cast with an application specific sensor
  • The gas sensor give 4-20 ma output & relay output with % of LEL LCD dis-play gas sensor can interface directly with any receiving instrument starting from indicators, controllers to large control system
  • The standard system consist of a compact electronic module housed in weatherproof enclosure with an application specific sensor
  • This state of art transmitter is carefully designed with and manufactured with industrial grade components for reliability accuracy and long life
  • Gas sensor enclosure is suitable for the ip67 certified


Technical Specifications:

  • Detection Principle: Catalytic Combustion, Semiconductor
  • Power Input: Dc 12-24Vdc
  • Response Time: Less 5 Second
  • Zero Drift: 0. 2% F
  • Accuracy: 2% F
  • Operating Tem: ( 0°C To +50°C ) Terminations: Pcb Mounted Terminal Blocks To Accept
  • 1.5mm Wire
  • Display: Lcd Display
  • L-Alarm, H-High Alarm
  • Output: Two Number Relay Contact
  • Power Consumption: 2
  • Wire: 0.5 W Max./3 Wire: 3.6 W Max
  • Max Load: 600 Ohm
  • Standard: Ul1484 And En50194
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Additional Information:

  • Item Code: NATURALGAS
  • Delivery Time: FOUR DAYS
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DWYER MS Magnesense Differential Pressure Transmitter

DWYER MS Magnesense Differential Pressure Transmitter
  • DWYER MS Magnesense Differential Pressure Transmitter
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Approx. Price: Rs 7,920 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Output Voltage0 to 10 V
BrandDWYER
Input Pressure (Pascal)100 Pascal
Model Number/NameSeries MS Magnesense

Service:Air and non-combustible compatible gases.Wetted Materials:Consult factory.Accuracy:±1% for 0.25" (50 Pa), 0.5" (100 Pa), 2" (500 Pa), 5" (1250 Pa), 10" (2 kPa), 15" (3 kPa), 25" (5 kPa) ±2% for 0.1" (25 Pa), 1" (250 Pa) and all bidirectional ranges.Stability:±1% FS/year.Temperature Limits:0 to 150°F (-18 to 66°C).Pressure Limits:1 psi maximum, operation; 10 psi, burst.Power Requirements:10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire).Output Signals:4 to 20 mA (2-wire); 0 to 5 V, 0 to 10 V (3-wire).Response Time:Field adjustable 0.5 to 15 sec. time constant. Provides a 95% response time of 1.5 to 45 seconds.Zero & Span Adjustments:Digital push button.Loop Resistance:Current output: 0-1250 Ω max; Voltage output: min. load resistance 1 kΩ.Current Consumption:40 mA max.Display (optional):4 digit LCD.Electrical Connections:4-20 mA, 2-wire: European Style Terminal Block for 16 to 26 AWG. 0-10 V, 3-wire: European Style Terminal Block 16 to 22 AWG.Electrical Entry:1/2" NPS Thread. Accessory: Cable Gland for 5 to 10 mm diameter cable.Process Connection:3/16" (5 mm) ID tubing. Maximum OD 9 mm.Enclosure Rating:NEMA 4X (IP66).Mounting Orientation:Diaphragm in vertical position.Weight:8.0 oz (230 g).
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Additional Information:

  • Item Code: SeriesMSMagnesense
  • Delivery Time: ONE WEEK
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Dwyer Carbon Dioxide & Temperature Transmitter

Dwyer Carbon Dioxide & Temperature Transmitter
  • Dwyer Carbon Dioxide & Temperature Transmitter
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Approx. Price: Rs 8,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Output Value0 TO 10 V
ApplicationCarbon Dioxide Transmitter

Sensor:Single beam, dual-wavelength NDIR.Range:CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Temperature: 32 to 122°F (0 to 50°C).Accuracy:CO2: ±40 ppm ±3% of reading; RH: ±2% (10 to 90% RH); Temperature: ±1°C @ 25°C.Temperature:±1°C @ 25°C.Temperature Dependence:±8 ppm/°C at 1100 ppm.Non-Linearity:16 ppm.Pressure Dependence:0.13% of reading per mm of Hg.Response Time:2 min for 99% step change.Duct Air Velocity Range:0-4000 FPM (20.32 m/s).Temperature Limits:32 to 122°F (0 to 50°C).Humidity Limits:10 to 95% RH (non-condensing).Power Requirements:16 to 35 VDC or 19 to 28 VAC.Power Consumption:Average: 2 w; Peak: 3.75 w.Output:Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω);
Relay: SPST NO 2 A @ 30 VDC; Weight:4.4 oz (125 g).Enclosure Rating:IP20.Agency Approvals:CE.
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Additional Information:

  • Item Code: CDT
  • Delivery Time: ONE WEEK
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Dwyer Magnehelic Differential Pressure Gauge

Dwyer Magnehelic Differential Pressure Gauge
  • Dwyer Magnehelic Differential Pressure Gauge
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Approx. Price: Rs 4,125 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
BrandDwyer
Modelseries 2000

SPECIFICATIONS:
Service: Air and non-combustible, compatible gases (natural gas option available).
Note: May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.
Wetted Materials: Consult factory.
Housing: Die cast aluminum case and bezel, with acrylic cover. Exterior finish is coated gray to withstand 168 hour salt spray corrosion test.
Accuracy: ±2% of FS (±3% on - 0, -100 Pa, -125 Pa, 10MM and ±4% on - 00, -60 Pa, -6MM ranges), throughout range at 70°F (21.1°C).
Pressure Limits: -20 in Hg to 15 psig† (-0.677 to 1.034 bar); MP option: 35 psig (2.41 bar); HP option: 80 psig (5.52 bar). Over pressure: Relief plug opens at approximately 25 psig (1.72 bar), standard gages only. See Over pressure Protection Note on next page.
Temperature Limits: 20 to 140°F* (-6.67 to 60°C). -20°F (-28°C) with low temperature option.
Size: 4˝ (101.6 mm)  diameter dial face.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Process Connections: 1/8˝ female NPT duplicate high and low pressure taps - one pair side and one pair back.
Weight: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g).
Standard Accessories: Two 1/8˝ NPT plugs for duplicate pressure taps, two 1/8˝ pipe thread to rubber tubing adapter, and three flush mounting adapters with screws. (Mounting and snap ring retainer substituted for three adapters in MP & HP gage accessories.)
Agency Approval: RoHS. Note: -SP models not RoHS approved. 1/8 Female Npt High Pressure Connection 1-3/4 (44.45) 1/2 (12.70) 1/8 Female Npt Low Pressure Connection 11/16 (17.46) 17/32 (13.49) ø4-3/4 (120.65) Panel Cutout ø5 (127) ø4-47/64 (120.27) 3/16 (4.76) 2-17/32 (64.29) 15/32 (11.91) ø4-1/2 (114.3) 1-1/4 (31.75) ø5-1/2 (139.70) Mounting Ring Rubber Pressure Relief Plug Will Unseat Itself When Gage Is Over pressurized (3) 6-32 X 3/16 (4.76) Deep Holes Equally Spaced On A Ø4-1/8 (104.78) Bolt Circle For Panel Mounting 1/8 Female Npt High Pressure Connection 1-3/4 (44.45) 1/2 (12.70) 1/8 Female Npt Low Pressure Connection 11/16 (17.46) 15/32 (11.91) 1-11/16 (42.86) Ø4-1/2 (114.3) 1-1/4 (31.75) 17/32 (13.49) .025 (.64) Space Created By 3 Spacer Pads When Surface Mounted. Do Not Obstruct. Provides Path For Relief Of Over pressure. 1/8 Female Npt High Pressure Connection 1/8 Female Npt Low Pressure Connection 7/16 (11.11) Ø4-3/4 (120.65) Flush, Surface or Pipe Mounted Enclosure Mounted ACCESSORIES †For applications with high cycle rate within gage total pressure rating, next higher rating is recommended. See Medium and High pressure options at lower left.
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Additional Information:

  • Item Code: 2000
  • Delivery Time: one week
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Dwyer Differential Pressure Transmitter

Dwyer Differential Pressure Transmitter
  • Dwyer Differential Pressure Transmitter
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Approx. Price: Rs 4,420 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
BrandDwyer
Model Number/Name616 kd

SPECIFICATIONS Service: Air and non-combustible, compatible gases. Wetted Materials: Consult factory. Accuracy: ±2.0% FS. Stability: ±1% FS/yr. Temperature Limits: 32 to 122°F (0 to 50°C). Pressure Limits: 2 psi (13.8 kPa). Thermal Effect on Span: ±0.11% FS/°F (±0.19% FS/°C) typ. Thermal Effect on Zero: 616KD-X0: 0.6%/°F (1%/°C); 616KD-X1: 0.3%/°F (0.5%/°C); 616KD-X2: 0.2%/°F (0.33%/°C); 616KD-X3: 0.12%/°F (0.2%/°C); 616KD-X4: 0.06%/°F (0.1%/°C) FS max. Power Requirements: 16 to 36 VDC (2 or 3 wire); 20 to 28 VAC (3 wire). Output Signal: 4 to 20 mA or unit with field selectable 0 to 10 & 0 to 5 volt. Zero and Span Adjustments: Push button. Loop Resistance: DC: 1000 Ω max.; AC: 1200 Ω max. Current Consumption: 21 mA max. Warm Up Time: 30 minutes. Electrical Connections: Screw-type terminal block. Process Connections: Barbed, dual size to fit 1/8˝ & 3/16˝ (3 mm & 5 mm) ID rubber or vinyl tubing. Enclosure Rating: NEMA 1 (IP20). Mounting Orientation: Position insensitive. Weight: 1.8 oz (51 g). Agency Approvals: CE. Tested to the following standards: IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2004 IEC 61000-4-5: 2005 IEC 61000-4-6: 2006 CENELEC EN 61000-6-2: 2005 CENELEC EN 61000-6-4: 2007 CENELEC EN 55011: 2007 FCC Part 15 CFR Title 47: 2009 ICES-003: 2004 Digital Apparatus (Industry Canada) ANSI C63.4-2003: 2003 CENELEC EN 61326-1: 2006 2004/108/EC EMC Directive
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Additional Information:

  • Item Code: 616kd
  • Delivery Time: one week
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Dwyer Carbon Monoxide Transmitter

Dwyer Carbon Monoxide Transmitter
  • Dwyer Carbon Monoxide Transmitter
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Approx. Price: Rs 4,750 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
ModelCMT 200
Display TypeDigital
BrandDwyer

Sensor: Field replaceable electrochemical, 4 year typical lifespan. Range: 0 to 200 ppm. Coverage Area: 5000 to 7000 sq. ft. typical. Accuracy: ±2% of reading at the time of calibration. Output Drift: <5% per year in air. Temperature Limits: -4 to 122°F (-20 to 50°C). Storage Temperature: For best sensor life, 32 to 68°F (0 to 20°C). Humidity Limits: 15 to 90% RH constant; 0 to 99% RH intermittent. Response Time: <45 seconds to 90% of final value. Calibration: 15 turn span and zero adjustment potentiometers. Housing: UV resistant polycarbonate. Output: Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (load must be >50 KΩ). Power Requirements: Current Output: 18 to 28 VDC; Voltage Output: 18 to 28 VDC/VAC, reverse polarity protected. Electrical Connection: Removable terminal block, includes two PG11 and one PG 16 knockouts for conduit fitting. Weight: 0.28 lb (0.11 kg).
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Additional Information:

  • Item Code: CMT200
  • Delivery Time: ONE WEEK
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Hydrocarbon Gas Detector

Hydrocarbon Gas Detector
  • Hydrocarbon Gas Detector
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Approx. Price: Rs 1.05 Lakh / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Display TypeDigital
BrandTrace automatiom
Gas TypeCombustible Gas

Features:
  • Simple and automated operation
  • Ultra-modern sensor technology
  • Designed for harsh environment

Other Details:
  • Measuring Gases: Flammable gases and vapors.(N.G, LPG & Condensate)
  • The central controller. Hart digital signal: Present
  • Classifications: Class I, Div. I, Group A, B, C & D, ATEX II, 2GD, EEx d IIC

Following is a list of common gases that are detected by this detector:
  • Alkanes or saturated hydrocarbons such as methane, Ethane, Propane, Butane, Pentane, Hexane, and Heptane, etc
  • Cycloalkanes such as Cyclopropane, Cyclohexane, Methylcyclohexane
  • Alkenes or unsaturated Hydrocarbons such as Ethylene, Propylene, Butene, Pentene, Hexene, Octene, etc Acetylene gas absorption at 3.1 microns which is not detectable
  • Cycloalkenes such as Cyclohexene and Pinene
  • Aromatics such as Benzene, Toluene, and Xylene
  • Alcohols such as Methanol, Ethanol, Propanol, and Allyl alcohol
  • Amines such as Dimethyl Amine, Trimethyl, Amine, Butanamine, Cyclopropanamine, and pyridines
  • Ethers such as Dimethyl Ether, Ethyl Ether,N-Propyl, Ether, Methyl Vinyl Ether, Vinyl Ether, Ethylene Oxide, tetrahydrofuran, Furan, and 1,4-Dioxane
  • Ketones such as Acetone, Methyl Ethyl Ketone, Pentanone, Methyl iso Butyl ketone and Heptanone
  • Aldehydes that have a central wavelength mostly at the 3.55 micron region and generally have a weak detection signal at 3.4 microns. Carbon dioxide at 4.3 microns and carbon monoxide at 4.6 microns have very little interference by other gases

Technical Specifications:
  • Detection Principle: Galvanic Cell & Infrared
  • Accuracy: ± 2% FSD
  • Repeatability: ± 2% at 50% 5. Linearity: ± 5% FSD
  • Pressure Coefficient: 1 % of reading per kPa Accuracy: 2% Fs
  • Operating Tem.: ( 0??? to +50???)
  • Terminations: PCB Mounted terminal blocks to accept 1.5mm wires
  • Display: LCD Display L-Alarm , H-High Alarm
  • Output: Two Number Relay contact
  • Power Consumption: 2 wire: 0.5 W max./3 wire: 3.6 W max
  • Max Load: 600 Ohms
  • Standard: IP 66/67, ATEX/UL Approved
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Additional Information:

  • Item Code: trace
  • Delivery Time: ONE WEEK
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Portable LPG Gas Detector

Portable LPG Gas Detector
  • Portable LPG Gas Detector
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Approx. Price: Rs 22,300 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
ModelRSPIG
Display TypeDigital

Technical Specifications:
  • Detection Principle: Catalytic combustion, Semiconductor, Electrochemical Cell, Galvanic Cell & Infrared
  • Power Input: DC 12-24VDC
  • Response Time: Less 5 Seconds
  • Zero Drift: 0.2% Fs
  • Accuracy: 2% Fs
  • Operating Tem.: ( 0 to +50 )
  • Terminations: PCB Mounted terminal blocks to accept 1.5mm wires
  • Display: LCD Display L-Alarm , H-High Alarm
  • Output: Two Number Relay contact
  • Power Consumption: 2 wire: 0.5 W max. / 3 wire:3.6 W max
  • Max Load: 600 Ohms
  • Standard: UL1484 and EN50194
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Additional Information:

  • Item Code: RSPIG
  • Delivery Time: ONE WEEK
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Vethagiri Kuppusamy (Proprietor)
No. 1/231-A, Pananchalai Street Adayalampattu
Ambattur Industrial Estate, Chennai- 600095, Tamil Nadu, India



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