Specialty Gas Accessories

Harris *30” Hg-0-100psi/7bar 2" Brass Gauge - 9006277

$26.45 ~~$27.60~~

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Harris 400psi/28bar 2" Chrome Plated Brass Gauge - 9006273

$26.45 ~~$27.60~~

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Harris 1000psi/70bar 2" Chrome Plated Brass Gauge - 9006274

$26.45 ~~$27.60~~

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Harris Tube Fitting 1/8” x 1/4” MNPT Stainless Steel - 9007050

$30.23

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Harris Tube Fitting 1/4” x 1/4’ MNPT Stainless Steel - 9007049

$30.23

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Harris CGA 350SS Nut - 9003033

$38.37

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Harris CGA 660SS Nut - 9003023

$40.02

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Harris CGA 330SS Nut - 9003019

$40.73

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Harris CGA 350 Stem with Check Valve - 9005735

$41.70

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Harris CGA 540SS 1/4" NPT Stem Assembly - 9005193

$44.48

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Harris CGA 590SS Nut- 9003037

$45.78

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Harris CGA 330SS 1/4" NPT Stem Assembly - 9005185

$46.13

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Harris CGA 320SS Nut - 9003062

$46.50

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Harris CGA 705SS 1/4" NPT Stem - 9005187

$47.97

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Harris CGA 540 Stem with Check Valve - 9005737

$47.98

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Harris CGA 510/580/590SS 1/4" NPT 3" Stem Assembly - 9005194

$48.78

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Harris CGA 320SS 1/4" NPT Stem Assembly - 9005188

$49.28

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Harris CGA 540SS Nut - 9003067

$50.87

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Harris CGA 660SS 1/4" NPT Stem - 9005186

$51.45

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Harris Adjustable Relief Valve RV-7250-BRS - 9100854

$53.98

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Harris Adjustable Relief Valve RV-7100-BRS - 9100853

$53.98

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Harris Adjustable Relief Valve RV-7800-CHR - 9100878

$55.61

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Harris Adjustable Relief Valve RV-7100-CHR - 9100863

$55.61

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Harris CE-52F Chrome Outlet Needle Valve - 9100927

$56.45

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Harris CGA 346 1/4" NPT 2.5" SS Stem Assembly - 9005190

$59.05

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Harris CGA 240 SS Inlet Assembly - 9100752

$70.35

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Harris Reducer Bushing 1/2” MNPT x 1/4” MNPT Stainless Steel - 9005753

$78.02

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Harris 1000psi/70bar 2" 316 Stainless Steel Gauge - 9006286

$90.54 ~~$123.28~~

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Harris CGA 300 Stem with Check Valve - 9005732

$94.33

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Harris Model G150 Single Cylinder Bench Mount Bracket - 4302654

$149.05

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Harris Adjustable Relief Valve RV-7250-SS - 9100858

$111.10

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Harris CGA 705SS Nut - 9003024

$115.88

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Harris *30” Hg-0-100psi/7bar 2" 316 Stainless Steel Gauge - 9006283

$118.11 ~~$123.28~~

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Harris 400psi/28bar 2" 316 Stainless Steel Gauge - 9006285

$118.11 ~~$123.28~~

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Harris 1/4 Turn Regulator Valve Brass - 9101385

$192.28

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Harris *30” Hg-0-200psi/14bar 2" 316 Stainless Steel Gauge - 9006284

$137.26

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Harris Model 8010 13X Replacement Cartridges OIL & WATER - 4302793

$141.37

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Harris *30” Hg-0-30psi/2bar 2" 316 Stainless Steel Gauge - 9006282

$170.35 ~~$177.82~~

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Harris Model G401 Four Cylinder Wall Mounted Bracket - 4302662

$346.10

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Harris Alarm Cable Accessory - 10' - 4300699

$233.93

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Harris Alarm Cable Accessory - 50' - 4300709

$263.93

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Harris PIGTAIL-24" Armored SS-lined SS 1/4" NPT(F) x 1/4" NPT(F) CGA 320 w/CV - 9103410

$322.60

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Harris PIGTAIL-36" Armored SS-lined SS 1/4" NPT(F) x 1/4" NPT(F) CGA 510A w/CV - 9103598

$603.18

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Harris BACK-UP SYSTEM, SG770-346 GEN - 4702984

$1,081.91 ~~$1,202.12~~

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Harris Manifold, 910SS2330 SGL STAT - 4700496

$1,415.00

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Harris Model 8530-FG-1/2" Pipeline Dry-Type Flashback Arrestor Assembly - 4300224

$1,528.00 ~~$1,915.83~~

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Harris Model 1031 Annunciator Alarm System - 4300824

$1,535.63

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Harris KIT, HARRIS BASIC UNIV 3 REG RESONATORLSU - 4703519

$2,940.30

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Essential Specialty Gas Accessories for Precision and Safety

Explore our comprehensive collection of specialty gas accessories at WeldingMart, designed to enhance the performance, safety, and reliability of your gas systems. Whether you're working in industrial, medical, or scientific applications, our top-quality accessories are crucial for maintaining precise gas control and ensuring operational efficiency. From gas filters and flashback arrestors to fittings and gauges, our selection includes everything you need to optimize your specialty gas equipment. Manufactured by trusted brands like Harris Products, these accessories are built to withstand demanding environments, offering durability and peace of mind. Each accessory is engineered for compatibility and ease of use, ensuring seamless integration into your existing systems. Upgrade your gas setup with our high-performance specialty gas accessories and experience superior control and safety in every application. Shop now at WeldingMart to find the best accessories for your specific gas management needs and achieve unparalleled results.

Frequently Asked Questions

What types of accessories are typically needed when setting up a specialty gas system?

A complete specialty gas setup generally requires a pressure regulator matched to the gas and cylinder, compatible hose and fittings (sized and rated for the operating pressure), check valves or flashback arrestors where required, and a flowmeter or flow control device if precise delivery rates are needed. Cylinder connection fittings are standardized by the Compressed Gas Association (CGA) — the CGA outlet number varies by gas type to prevent cross-connection.

How do I know which CGA fitting I need for my gas cylinder?

CGA fitting numbers are assigned by the Compressed Gas Association per CGA B-57.1 to prevent connecting the wrong regulator to a cylinder. Common examples: CGA 580 for non-flammable, non-oxidizing gases (argon, nitrogen, helium); CGA 540 for oxygen; CGA 510 for propane/LP; CGA 300 for CO2. The gas type and CGA number are printed on the cylinder label and the cylinder valve — match the regulator inlet to that number.

When do I need a flashback arrestor or check valve on a gas line?

Flashback arrestors are required on any fuel gas or oxygen line used with a torch for cutting, heating, or brazing. They contain a sintered metal disc that extinguishes a reverse flame and a check valve that stops reverse gas flow (backfire) from reaching the cylinder or regulator. CGA standard TB-3 covers hose line flashback arrestors. Both the torch end and the regulator end should be protected for maximum safety.

Can I use standard welding hose for specialty gas applications?

Not always. Welding-grade hose (Grade T per CGA E-1) is rated for oxygen and standard fuel gases. Specialty gases may require specific hose materials for compatibility — for example, some gases attack nylon or require stainless steel tubing rather than rubber hose. Always check the gas supplier's MSDS and the hose manufacturer's compatibility chart for the specific gas being used.

How often should specialty gas regulators and accessories be inspected?

Regulators and accessories should be visually inspected before each use for damaged gauges, cracked hoses, worn fittings, or contamination. A full leak-check with soapy water should be performed after any connection change or at least annually. CGA E-4 (Standard for Gas Pressure Regulators) covers inspection and maintenance criteria. Regulators that show erratic pressure behavior, creep, or leakage should be taken out of service and serviced by a qualified technician.

Do specialty gas accessories need to be dedicated to a single gas, or can they be used across multiple gases?

In general, regulators, hoses, and fittings should be dedicated to a single gas service. Cross-contamination between gases — especially fuel gases and oxygen — is extremely hazardous. Regulators and hoses that have been used with oil or hydrocarbon gases must never be used with oxygen. Even inert gas accessories should be clearly labeled for the specific service to prevent accidental cross-connection.