MT switches have been designed for applications that require robust, long lasting switches, coupled with high accuracy and repeatability, in adverse conditions. By using appropriate capsules and wetted parts, MT series pressure switches can be used for thousands of applications. A wide choice of electrical elements including SPDT, DPDT, gold plated contacts make these switches ideal for a variety of critical applications. A wide scale, when opted for, offers ease of setting, given the smaller least counts.  

Applications

Power Generation
Burners and Furnaces
Glass and Metal Industries
Chemical Industries
Steel Industry
Hydraulic, Steam and GasTurbines
Boilers & Compressors
Machine tools
Railway braking systems
Water treatment
Sugar and Paper Mills
Fire protection
Surgical gas, Breweries, Milk industries
Tyre Industry
Natural Gas, LPG storage and transportation
Product Specifications

Storage temperature : Atmospheric temperature
Operating ambient temperature : - 20 ºC to + 60 ºC
Media Temp.:- for rubber diaphragms 80 degree C max., higher with metal diaphragms
Can be offered for higher temperatures with other capsule combinations
Setpoint repeatability : ± 1 % of FSR
Enclosure : Die cast aluminium to IP 66
Switch output : SPDT, DPDT, hermetically sealed, gold plated contacts
Process connection : 1⁄4 “BSP standard, other options like flanges, triclover clamps, diaphragm seals available

Flange Code Table

Microswitch Options

MT Dual switches have been designed for applications requiring multiple set points. MT Dual pressure switches are housed in a cast aluminium enclosure. It has two independent pressure switch assemblies, with two independent scales to show approximate setpoints. The enclosure conforms to IP66 protection factor. The pressure capsule, at the bottom of the switch, comprises a pressure housing (either of SS316L or any other material like Monel, Hastelloy C etc), and a pair of disc, nylon reinforced rubber / metal diaphragm and a plunger. The electrical changeover is through a snapaction microswitch. 2 SPDT switching can be provided as an option. Other options like hermetically sealed microswitches etc, can be provided on checking feasibility, as per the order. 

Applications:

• Oil & Gas
• Petrochemical
• Refineries
• Mines
• Bulk Drug & Pharma
• Chemical Industries
• Water Treatment
• Boiler & Compressors
• Textile Machinery
• Burners and Furnaces
• Glass and Metal Industries
• Chemical Industries
• Natural Gas, LPG storage and transportation

Product Specifications:

• Storage temperature : Atmospheric temperature
• Operating ambient temperature : - 20 ºC to + 60 ºC
• Media Temp.:- for rubber diaphragms 80 degree C max., higher with metal diaphragms
• Can be offered for higher temperatures with other capsule combinations
• Setpoint repeatability : ± 1 % of FSR
• Enclosure : Die cast aluminium to IP 66
• Switch output : SPDT, DPDT, hermetically sealed, gold plated contacts
• Process connection : 1⁄4 “BSP standard, other options like flanges, triclover clamps, diaphragm seals available

FC pressure switches have been designed for use in areas which are potentially explosive. These can be used, by selecting an appropriate construction, for gas groups IIA, IIB and IIC. They can also be used in underground mines by selecting Grey CI flameproof heads.

Typical attributes are as follows.

Application

• Oil & Gas
• Petrochemical
• Refineries
• Mines
• Bulk Drug & Pharma
• Chemical Industries

Product Specifications

• Storage Temp. : Atmospheric temperature
• Operating ambient Temp. : -20 deg C to + 60 deg C
• Media Temp.:- for non-metallic diaphragms 80ºC max., higher with metal diaphragms
• Set point repeatability : +/- 1% over full range
• Enclosure details : Al grade LM6 / Grey Cast Iron / Stainless Steel Casing & Cover
• Enclosure Specifications :  II 2 GD Ex d IIC Gb Ex tb IIIC Db T85°C (-20°C < Ta < +60°C) IP66 Protection : IP66 Standard Complies to :
  • IS/IEC 60079 - 1: 2007
  • EN 60079-0:2009, EN 60079-1: 2007 and EN 60079-31: 2009.
  • Grey CI enclosure for mines (Group I applications)
• Switch output 1 SPDT (2 SPDT on request).

MZ high range

MZ Series pressure switches have been designed for applications that require cost effective outdoor mounting in aggressive environments. The tough polycarbonate cover,fitted on a stainless steel base, retained by SS screws offers excellent resistance to corrosion, and also allows a view of the internal scale and working of the pressure switch. The reliable microswitch offers narrow deadband, switching values,which have excellent repeatabilty. By using appropriate capsules and wetted parts, MZ series pressure switches can be used for thousands of applications.

Appications

• Power Generation
• Burners and Furnaces
• Glass and Metal Industries
• Chemical Industries
• Steel Industry
• Hydraulic, Steam and GasTurbines
• Boilers & Compressors
• Machine tools
• Water treatment
• Sugar and Paper Mills
• Fire protection
• Surgical gas, Breweries, Milk industries
• Tyre Industry

Product Specifications:

• Storage temperature : Atmospheric temperature
• Operating ambient temperature : - 20 o C to + 60 o C
• Media temperature : for rubber diaphragms 80 o C max
• Can be offered for higher temperatures with other capsule
• combinations
• Setpoint repeatability : ± 1 % of FSR
• Enclosure : Tough Polycarbonate and SS to IP 66
• Switch output : SPDT / 2SPDT
• Process connection : 1⁄4 “BSP standard,
• Approximate weight : 1 kg

PD series pressure difference swicthes are housed in pressure diecast aluminium powder coated enclosure and recommended for panel mounting or outdoor service based on the type of enclosure opted for. The repeat accuracy is better than +/- 1% FSR.A 3/8" cable entry is provided for cables and a terminal strip suitable fro wired ends is provided inside the enclosure. Pressure ports are 1/4" BSPF standard.

Applications:

• Water Treatment Plants
• Bag Filters
• Strainers

HO series pressure switches have a machined aluminium powder coated enclosure and are recommended for manifold mounting hydraulic applications. The repeat accuracy is better than ±1 % FSR. A connector to DIN 43650 is provided for wiring. 

Some Applications:

• Used in compressors,
• hydraulic power packs, manifolds/stacks with
• sandwich plates, high/low pressure alarms in
• CNC machines etc.