Our Products
Instrumentation tube fittings, pipe fittings, valves, gauge accessories, thermowells, diaphragm seals and hardware — machined in Mumbai from SS 304, SS 316, SS 316L, Brass and nickel alloys.
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One Source for Instrumentation Fittings & Valves
From a single double ferrule connector to a complete impulse line hook-up, Kalpataru manufactures the fittings, valves and accessories that connect process lines to instruments. Every product is CNC machined from certified bar stock, marked for heat traceability and tested before dispatch. Choose a product family below to see types, sizes, material charts and dimension tables.
Tube & Pipe Fittings
0115 TypesCompression Tube Fittings
Double ferrule, leak-tight fittings for 1/8" to 1" and 3 mm to 25 mm OD instrument tubing.
- Male Connector
- Union Tee
- Bulkhead Union
- Male Elbow
0218 TypesInstrumentation Pipe Fittings
Threaded NPT / BSP nipples, plugs, bushes, couplings, elbows, tees and crosses.
- Hex Nipple
- Hex Plug
- Bush
- Tee Female
Valves
034 TypesNeedle Valves
Multi-turn valves for fine flow control and positive isolation of instrument lines.
- OD × OD
- Male × Female
- Female × Female
- Angle Type
048 TypesManifold Valves
2, 3 and 5 valve manifolds for isolating, equalising and venting pressure transmitters.
- 2VM 'R' Type
- 3VM 'T' Type
- 3VM 'H' Type
- 5VM 'H' Type
052 TypesGauge Valves
Isolation and vent valves for mounting pressure gauges directly on the process line.
- Single Port
- Multi Port
062 TypesMono Flange Valves
Compact flanged block and bleed valves that replace multiple valves at the process tapping.
- Single Block & Bleed
- Double Block & Bleed
074 TypesBall Valves
Quarter turn on / off and diverting valves with threaded or tube ends.
- Bar Stock
- High Pressure
- OD × OD
- 3 Way
083 TypesCheck Valve / NRV
Spring loaded non-return valves that allow flow in one direction and stop back flow.
- Female × Female
- Male × Female
- OD × OD
Gauge, Temperature & Pressure Accessories
098 TypesPressure Gauge Accessories
Protect gauges from pulsation, over-pressure and hot steam, and make installation easier.
- Snubber
- Gauge Cock
- Gauge Saver
- Syphon
104 TypesThermowell
Bar stock thermowells that protect temperature sensors from pressure, flow and corrosion.
- Threaded
- Flanged
- Welded
- Sanitary
118 TypesDiaphragm Seals
Isolate gauges and transmitters from corrosive, viscous, hot or clogging process media.
- Flanged
- Threaded
- Inline
- Flushing Ring
Hardware & Panel Valves
122 TypesInstrumentation Hardware
Instrument air headers and condensate / seal pots from 1" to 4" pipe, built to your layout.
- Air Headers
- Condensate / Sealpot
133 TypesPanel Mounted Valves
Ball, 3 way ball and needle valves that mount through instrument and analyser panels.
- 3 Way Ball Valve
- Ball Valve
- Needle Valve
Materials We Machine
Stainless steel 316 is our standard for most instrumentation service. For sea water, sour gas, strong acids or high temperature, the same products are machined from nickel alloys, duplex grades or brass, with EN 10204 3.1 material certificates. Full chemical and mechanical charts are on our Technical Info page.
Stainless Steel
Nickel Alloys & Special Grades
Carbon Steel & Copper Alloys
Why Buy From Us
In-house Manufacturing
Fittings and valves are CNC machined at our Sewri, Mumbai factory, so we control quality and delivery.
Tested & Inspected
Dimensional checks and pressure testing before dispatch, with PMI and third party inspection on request.
Full Traceability
Heat numbers marked on bodies and linked to EN 10204 3.1 mill certificates for every batch.
Certified Enterprise
ISO 14001 (AQSR) certified, ZED certified and MSME registered manufacturer.
Can't Find the Exact Part You Need?
Send your drawing, part code or bill of materials — we machine special sizes, threads and materials to order.