Pressure Gauge Accessories Manufacturer in Mumbai – Snubbers, Gauge Cocks, Syphons

Stainless steel pressure gauge accessories – snubbers, gauge cocks and syphons

Up to 6000 PSISnubber working pressure*

Product Overview

Accessories That Protect Your Pressure Gauges

A pressure gauge is a precise mechanical instrument, and most gauge failures are caused by the process rather than the gauge itself — pump pulsation that wears the movement, pressure spikes that over-stretch the Bourdon tube, live steam that softens the soft-soldered or brazed joints, and radiant heat that ruins accuracy. Kalpataru gauge accessories sit between the process tapping and the instrument to remove those causes.

The range covers pulsation snubbers, 1 way, 2 way and 3 way gauge cocks, adjustable gauge savers, Q and U type syphons, swivel adapters and fin or perforated cooling towers, all machined from certified bar stock with process and instrument connections from 1/4" to 1" NPT, BSP and other threads.

Dampens pulsation & surges
Isolates gauge for removal
Overpressure cut-off
Steam & heat protection
Correct gauge orientation
Heat code traceability

Request a Quote View Dimensions

Connections1/4" to 1" NPT / BSP & others

Snubber Rating3000 PSI / 6000 PSI

Gauge Saver Set Range0.3 to 400 bar

MaterialsSS 304 / 316 / 316L, Brass, Alloys

01

Types

Pressure Gauge Accessory Types

Pulsation, Isolation & Overpressure

SN

Snubber

A porous sintered or piston-type restriction that damps pump pulsation and pressure surges before they reach the gauge, giving a steady pointer and longer movement life.

End Conn.MPT / FPT
Thread1/8" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
TypeHexagonal. All combinations available
Test PressureUp to 6000 psi
MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS
Model No.MOC*-SNB-INLET*-OUTLET*

GC

Gauge Cocks – 1 Way / 2 Way

Simple lever or T-handle plug cocks to isolate a gauge from the line. The 2 way version adds a second outlet for venting or connecting a test gauge.

Type2 Way or 3 Way. Hexagonal, all combinations available
Thread1/8" to 1" NPT (Taper) MPT / FPT; BSPP / BSPT / ISO / Metric on request
Test PressureUp to 450 psi
MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS

3W

Gauge Cocks – 3 Way

Three-position cock that connects gauge to process, isolates it, or vents the gauge to atmosphere — allowing zero checks and safe removal without shutting the line.

1500 PSIIsolate & vent

GS

Gauge Saver

Spring-loaded overpressure protector that closes automatically when line pressure rises above the set point and reopens when it falls back. Set pressure 0.3 to 400 bar.

Adjustable set pointAuto reset

Steam, Heat & Mounting

SY

Syphon Q type (pigtail) for pressure gauge

Syphon (Q & U Type)

Coiled (Q / pigtail) or U-shaped tube that traps condensate as a water seal, so live steam never reaches the gauge element. Used on boilers, steam headers and hot water lines.

End Conn.MPT / FPT / SW / Plain
Pipe SizeUp to 1/2" (Sch. 40 to Sch. XXS)
TypeU Type, Q Type
Thread1/4" to 1/2" NPT; BSPP / BSPT / ISO / Metric on request
Socket Weld1/4" to 1/2" NB (up to 9000 psi)
MOCSS 316, 304 / CS / AS

SA

Swivel Adapter

Female swivel nut on a male stem that lets a gauge be turned to face the operator and tightened without rotating the gauge case on its thread.

UseFixing position of a component (pressure gauge / valve) without rotating the component itself
Male End1/8" to 1" NPT (Taper); BSPP / BSPT / ISO / Metric on request
Female SwivelParallel threads (BSPP / ISO / Metric / NPS)
TypeSealing with rubber O-ring (Viton / Neoprene / Silicon)
MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS
Model No.MOC*-SWA-MPT*-FPT*

FT

Fin Type (Cooling Tower)

Heat-dissipating extension with machined radial fins that increase surface area and cool hot process media before it reaches the gauge or transmitter.

Cooling towerRadial fins

PT

Perforated Type (Cooling Tower)

Cooling element with a perforated outer shell that allows free air circulation around the stem — a compact heat barrier between hot process and instrument.

Cooling towerAir circulation

02

Specifications

Technical Specifications

Product	Pressure Gauge Accessories — snubbers, gauge cocks, gauge savers, syphons, swivel adapters, cooling towers
Process Connection	1/4", 3/8", 1/2", 3/4", 1" — NPT, BSP / BSPP, BSPT & others on request
Instrument Connection	1/4" to 1" NPT / BSP female or swivel female & others on request
Body Material	SS 304, SS 316, SS 316L, Brass, Inconel, Monel, Hastelloy C & others on request
Max Working Pressure — Snubber	3000 PSI (standard) / 6000 PSI (high pressure)
Max Working Pressure — Gauge Cock	1500 PSI
Set Pressure — Gauge Saver	0.3 to 400 bar (adjustable within spring range)
Syphon Forms	Q type (pigtail / coil) and U type, straight or 90° pattern
Cooling Towers	Fin type and perforated type heat dissipating elements
Options	Oxygen service cleaning, NACE MR0175 / MR0103 material compliance, PMI, third party inspection (TPI)
Certificates	EN 10204 3.1 material certificate, test certificate, third party inspection on request

03

Materials

Material Grades

Stainless Steel

SS 304 / 304L SS 316 SS 316L

Nickel Alloys

Monel 400 Inconel 600 Inconel 625 Hastelloy C-276

Copper Alloys

Brass C36000 Brass C37700 (forged)

Material	UNS No.	Bar Stock	Forgings
SS 304	S30400	ASTM A479 / A276	ASTM A182 F304
SS 316	S31600	ASTM A479 / A276	ASTM A182 F316
SS 316L	S31603	ASTM A479 / A276	ASTM A182 F316L
Monel 400	N04400	ASTM B164	ASTM B564
Inconel 600	N06600	ASTM B166	ASTM B564
Inconel 625	N06625	ASTM B446	ASTM B564
Hastelloy C-276	N10276	ASTM B574	ASTM B564
Brass	C36000 / C37700	ASTM B16	ASTM B283

04

Material Charts

Chemical & Mechanical Properties

Grade	C	Mn	Si	P	S	Cr	Ni	Mo	Others
SS 304	0.08	2.00	1.00	0.045	0.030	18.0–20.0	8.0–10.5	—	N 0.10
SS 316	0.08	2.00	1.00	0.045	0.030	16.0–18.0	10.0–14.0	2.0–3.0	N 0.10
SS 316L	0.030	2.00	1.00	0.045	0.030	16.0–18.0	10.0–14.0	2.0–3.0	N 0.10
Monel 400	0.30	2.00	0.50	—	0.024	—	63.0 min	—	Cu 28.0–34.0, Fe 2.5
Inconel 600	0.15	1.00	0.50	—	0.015	14.0–17.0	72.0 min	—	Fe 6.0–10.0, Cu 0.50
Inconel 625	0.10	0.50	0.50	0.015	0.015	20.0–23.0	58.0 min	8.0–10.0	Nb+Ta 3.15–4.15, Fe 5.0
Hastelloy C-276	0.010	1.00	0.08	0.04	0.03	14.5–16.5	Balance	15.0–17.0	W 3.0–4.5, Fe 4.0–7.0
Brass C36000	—	—	—	—	—	—	—	—	Cu 60.0–63.0, Pb 2.5–3.7, Fe 0.35, Zn Bal.

Values in weight %. Single values are maximum unless stated. Limits as per the applicable ASTM bar stock specification.

Grade	Tensile Strength (MPa, min)	Yield Strength 0.2% (MPa, min)	Elongation (%, min)	Hardness (max)
SS 304	515	205	40	201 HB
SS 316	515	205	40	217 HB
SS 316L	485	170	40	217 HB
Monel 400	480	170	35	—
Inconel 600	550	240	30	—
Inconel 625	827	414	30	—
Hastelloy C-276	690	283	40	—
Brass C36000	338–469*	124–310*	18–53*	—

Annealed condition. *Brass values are typical ranges depending on temper and bar diameter.

Grade	Density (g/cm³)	Melting Range (°C)	Key Characteristic
SS 304	8.00	1400–1450	General corrosion resistance, economical
SS 316 / 316L	8.00	1375–1400	Molybdenum for chloride & pitting resistance
Monel 400	8.80	1300–1350	Sea water, hydrofluoric acid service
Inconel 600	8.47	1354–1413	High temperature oxidation resistance
Inconel 625	8.44	1290–1350	High strength, crevice corrosion resistance
Hastelloy C-276	8.89	1325–1370	Severe oxidising & reducing chemicals
Brass C36000	8.50	885–900	Free machining, water & air service

05

Dimensions

Selection & Dimension Tables

Accessory Selection Guide

Accessory	Purpose	Typical Service	Max Working Pressure
Snubber	Damps pulsation & pressure surges	Pump discharge, compressors, hydraulics	3000 / 6000 PSI
Gauge Cock 1 / 2 Way	Isolates gauge; 2 way adds vent / test outlet	Utility, water, air and low pressure lines	1500 PSI
Gauge Cock 3 Way	Isolate, vent and zero-check gauge	Boilers, steam and general process	1500 PSI
Gauge Saver	Closes automatically above set pressure	Test benches, low range gauges on high pressure lines	Set 0.3–400 bar
Syphon Q / U Type	Condensate seal against live steam	Boilers, steam headers, hot water	Per tube size & material
Swivel Adapter	Orients gauge dial without twisting	All gauge installations	Per thread & material
Fin / Perforated Cooling Tower	Dissipates heat before the instrument	Hot oil, hot gas, high temperature process	Per design

Syphon Tube — Typical Dimensions

Type	Pipe / Tube OD	Wall Thickness	End Connections	Approx. Height
Q Type (Pigtail) — Light	1/2" NB (21.3 mm)	Sch 80 (3.73 mm)	1/2" NPT M × 1/2" NPT F	≈ 200 mm
Q Type (Pigtail) — Heavy	1/2" NB (21.3 mm)	Sch 160 (4.78 mm)	1/2" NPT M × 1/2" NPT F / swivel	≈ 200 mm
Q Type (Pigtail) — Tube	12 mm / 1/2" OD	1.5–2.0 mm	1/4" or 1/2" NPT / BSP	≈ 150 mm
U Type — Standard	1/2" NB (21.3 mm)	Sch 80 (3.73 mm)	1/2" NPT M × 1/2" NPT F	≈ 250 mm
U Type — Heavy	1/2" NB (21.3 mm)	Sch 160 (4.78 mm)	1/2" NPT / BSP / socket weld	≈ 250 mm
U Type — Compact	1/4" NB (13.7 mm)	Sch 80 (3.02 mm)	1/4" NPT M × 1/4" NPT F	≈ 180 mm

Snubber Element Options

Element Type	Porosity / Grade	Recommended Media	Damping
Sintered Disc — Fine	≈ 10 micron	Air, gases, light vapours	High
Sintered Disc — Medium	≈ 20–40 micron	Water, light oils, clean liquids	Medium
Sintered Disc — Coarse	≈ 60–100 micron	Medium to heavy oils, viscous liquids	Low–medium
Piston Type	Selected pin / clearance	Hydraulic oils, liquids with light particulates	Self-cleaning, medium
Adjustable Needle Type	Variable orifice	Mixed or changing service	Field adjustable

Typical values for reference only. Actual porosity, tube size and wall thickness are selected to suit media, pressure and temperature. Final dimensions are confirmed on the approved drawing for your order.

06

Applications

Where Our Gauge Accessories Are Used

Boilers & Steam Headers

Pump & Compressor Discharge

Hydraulic Power Units

Oil & Gas Process Lines

Refinery & Petrochemical

Power Plants

Test Benches & Labs

Water & Utility Systems

07

Why Kalpataru

Features & Advantages

Longer Gauge Life

Damping pulsation and blocking steam and heat keeps Bourdon tubes and movements within their design limits, cutting gauge replacement costs.

Readable, Steady Pointer

Snubbers and gauge savers remove needle flutter and spikes, so operators read the true mean pressure.

Special Service Ready

Oxygen service cleaning, NACE compliant materials and PMI are available for critical and sour service duties.

Full Traceability

Heat numbers marked on bodies and recorded against mill certificates, with third party inspection on request.

08

FAQ

Frequently Asked Questions

When should I use a snubber instead of a liquid-filled gauge?

Liquid filling damps pointer vibration inside the gauge, but the pressure pulses still reach the Bourdon tube. A snubber restricts the flow into the gauge so pulses are smoothed before they arrive. On reciprocating pumps, compressors and hydraulic systems, using both together gives the best result.

What is the difference between a Q type and a U type syphon?

Both trap condensate to form a water seal that protects the gauge from live steam. The Q type (pigtail) is used on horizontal pipe runs and occupies less width; the U type is typically used on vertical lines. Fill the syphon with water before first start-up so the seal is in place immediately.

How does a gauge saver work?

A spring-loaded piston holds the valve open under normal pressure. When line pressure exceeds the set point (adjustable between 0.3 and 400 bar depending on spring range), the piston closes the passage and holds the last safe pressure on the gauge. It reopens automatically once the line pressure falls below the set point.

Do I need a cooling tower on high temperature lines?

Most pressure gauges and transmitters are rated for a process temperature well below what is found on hot oil, hot gas or thermal fluid lines. A fin type or perforated type cooling tower increases the distance and surface area between process and instrument so heat is dissipated before it reaches the sensing element. Share your process temperature and we will suggest a suitable length.

09

032 Types

Gauge Valves

Single port and multi port valves for isolating and venting gauges.

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068 Types

Diaphragm Seals

Isolate gauges and transmitters from corrosive, viscous or hot media.

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0218 Types

Instrumentation Pipe Fittings

Nipples, plugs, bushes, couplings, elbows, tees and crosses.

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Pressure Gauge Accessories

Accessories That Protect Your Pressure Gauges

Pressure Gauge Accessory Types

Pulsation, Isolation & Overpressure

Snubber

Gauge Cocks – 1 Way / 2 Way

Gauge Cocks – 3 Way

Gauge Saver

Steam, Heat & Mounting

Syphon (Q & U Type)

Swivel Adapter

Fin Type (Cooling Tower)

Perforated Type (Cooling Tower)

Technical Specifications

Material Grades

Stainless Steel

Nickel Alloys

Copper Alloys

Chemical & Mechanical Properties

Selection & Dimension Tables

Accessory Selection Guide

Syphon Tube — Typical Dimensions

Snubber Element Options

Where Our Gauge Accessories Are Used

Boilers & Steam Headers

Pump & Compressor Discharge

Hydraulic Power Units

Oil & Gas Process Lines

Refinery & Petrochemical

Power Plants

Test Benches & Labs

Water & Utility Systems

Features & Advantages

Longer Gauge Life

Readable, Steady Pointer

Special Service Ready

Full Traceability

Frequently Asked Questions

Related Products

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Diaphragm Seals

Instrumentation Pipe Fittings

Protect Your Gauges — Get a Quote