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Coil Syphons
Extend the life of your pressure instruments with our durable coil siphons. Designed to act as a protective barrier, coil siphons help cool process media and prevent direct exposure of hot gases or liquids to pressure gauges, switches, and transmitters. This ensures more accurate readings and longer instrument service life. Available in a range of materials, sizes, and pressure ratings, our coil siphons are ideal for use in steam systems, boilers, chemical processing, and other high-temperature applications. Their coiled design dissipates heat efficiently while providing a reliable seal between process media and sensitive instruments. Built with rugged construction and trusted-brand quality, our coil siphons deliver dependable performance and are an essential accessory for protecting pressure measurement equipment in demanding environments.
Related categories: Pressure Accessories | Pressure Snubber | Test Plugs & Accessories | Gauge Cock Valves
Filters 18 Results
18 items
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Ametek/US Gauge Stainless Steel Coil Syphon 1/2 NPT
Save 29%$355.40
$251.17
Should ship between 17 Nov and 24 Nov
Subject to factory lead times
DANSWAY;SYPHON 1/4"-304SS
Save 60%$55.00
$22.00
In Stock (70)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$6.50
In Stock (179)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$42.00
In Stock (24)Ships within 1 business day
DANSWAY;SYPHON 1/4"-BRASS
Save 60%$38.00
$15.20
Low Stock (3)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
Save 72%$14.75
$4.07
In Stock (9)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
Save 60%$105.00
$42.00
Low Stock (4)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$44.00
Low Stock (2)Ships within 1 business day
DANSWAY;SYPHON 1/2"-304SS
Save 60%$153.00
$61.20
In Stock (9)Ships within 1 business day
DANSWAY;SYPHON 1/2"-304SS
Save 75%$240.00
$60.00
Low Stock (5)Ships within 1 business day
DANSWAY;SYPHON 1/2"-STEEL
Save 60%$115.00
$46.00
In Stock (44)Ships within 1 business day
DANSWAY;SYPHON 1/2"-STEEL
Save 60%$115.00
$46.00
In Stock (29)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$116.00
$66.55
Should ship between 17 Nov and 24 Nov
Subject to factory lead times
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$53.25
$30.55
In Stock (553)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$60.50
$34.71
In Stock (511)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$53.25
$30.55
In Stock (306)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$13.50
$7.75
In Stock (1601)Ships within 1 business day
The WIKA 910.24 mini-siphon in stainless steel with 1/2 NPT connections is a compact replacement for pigtail and coil syphons, condensate-filling the pressure line to isolate steam and high-temperature media from gauges and transmitters. Its NACE-compliant construction suits sour-gas and corrosive process applications in oil & gas and chemical plants.
Save 35%$297.97
$192.51
Quick Ship
Ships in 24 hours - order by 2pm EDT
Ametek/US Gauge Stainless Steel Coil Syphon 1/2 NPT
Save 29%$355.40
$251.17
Should ship between 17 Nov and 24 Nov
Subject to factory lead times
DANSWAY;SYPHON 1/4"-304SS
Save 60%$55.00
$22.00
In Stock (70)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$6.50
In Stock (179)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$42.00
In Stock (24)Ships within 1 business day
DANSWAY;SYPHON 1/4"-BRASS
Save 60%$38.00
$15.20
Low Stock (3)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
Save 72%$14.75
$4.07
In Stock (9)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
Save 60%$105.00
$42.00
Low Stock (4)Ships within 1 business day
DANSWAY;SYPHON 1/4"-STEEL
$44.00
Low Stock (2)Ships within 1 business day
DANSWAY;SYPHON 1/2"-304SS
Save 60%$153.00
$61.20
In Stock (9)Ships within 1 business day
DANSWAY;SYPHON 1/2"-304SS
Save 75%$240.00
$60.00
Low Stock (5)Ships within 1 business day
DANSWAY;SYPHON 1/2"-STEEL
Save 60%$115.00
$46.00
In Stock (44)Ships within 1 business day
DANSWAY;SYPHON 1/2"-STEEL
Save 60%$115.00
$46.00
In Stock (29)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$116.00
$66.55
Should ship between 17 Nov and 24 Nov
Subject to factory lead times
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$53.25
$30.55
In Stock (553)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$60.50
$34.71
In Stock (511)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$53.25
$30.55
In Stock (306)Ships within 1 business day
885 Series Coil Syphons are designed for use on steam service to form a pocket of water between the pressure gauge and the process steam, thereby preventing the steam from reaching the bourdon tube of the pressure gauge. Trerice Coil Syphons are constructed of steel, brass, or 304 stainless steel with a 180° coil for use on a variety of requirements. Other materials and coil styles are available; consult factory.
Save 43%$13.50
$7.75
In Stock (1601)Ships within 1 business day
The WIKA 910.24 mini-siphon in stainless steel with 1/2 NPT connections is a compact replacement for pigtail and coil syphons, condensate-filling the pressure line to isolate steam and high-temperature media from gauges and transmitters. Its NACE-compliant construction suits sour-gas and corrosive process applications in oil & gas and chemical plants.
Save 35%$297.97
$192.51
Quick Ship
Ships in 24 hours - order by 2pm EDT
FAQ
- A coil syphon (or pigtail syphon) is a loop of pipe between the steam line and the pressure gauge. The loop traps condensate, which sits between the live steam and the gauge bourdon tube. The gauge measures pressure but never sees the hot steam, which would otherwise cook the seal and ruin the gauge in months. Required equipment on any steam pressure gauge.
- Anywhere you measure steam or hot fluid pressure (above ~250°F) with a standard gauge or transmitter. The syphon condenses a small amount of steam into a water seal that protects the instrument. Coil syphons (full loop) are common in higher-pressure service; pigtail (single curl) for lower-pressure. Always install with the syphon loop in the right orientation so it actually traps condensate.
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About NISCO Inc.
NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.