Specialty Gas Accessories

Harris CGA 350SS 1/4" NPT Stem Assembly - 9005191

$41.18

View details
Harris CGA 580SS Nut - 9003036

$41.90

View details
Harris LH Manifold Union Nut - 9005725

$42.55

View details
Harris 1/2 Turn Instrument Valve Nickel Plated Brass - 9105190

$112.01 ~~$134.98~~

View details
Harris 36" Armored SS-lined SS 1/4" NPT(F) x 1/4" NPT(F) - 9005794

$223.85

View details
Harris Model 8530-FG-1" Pipeline Dry-Type Flashback Arrestor Assembly - 4300223

$1,619.00 ~~$1,999.78~~

View details
Harris Model 147-OX-1" Pipeline Dry-Type Flashback Arrestor Assembly - 4300228

$1,619.00 ~~$1,997.93~~

View details
Harris Model 1031 Annunciator Alarm System - 4300826

$1,936.87

View details
Harris CGA 510 Regulator Inlet Nut 9002972

$15.35

View details
Harris CGA 326 Chrome Nut - 9002967

$15.47

View details
Harris 1/2" NPT x 4" Brass Pipe Nipple - 9005704

$29.98 ~~$31.32~~

View details
Harris 1/2" NPT x 2" Brass Pipe Nipple - 9005707

$29.98 ~~$31.32~~

View details
Harris 1/4” MNPT x 1/2” FNPT Brass Adaptor - 9005740

$33.12

View details
Harris 1/4 Turn Instrument Valve Brass - 9101388

$149.65

View details
Harris 4000psi/280bar 2" 316 Stainless Steel Gauge - 9006287

$104.55 ~~$123.28~~

View details
Harris PIGTAIL-36" PTFE-lined braided assembly 1/4" NPT(F) x 1/4" NPT(F) Cyl 580 to MNF 580 - 9103372

$267.80

View details
Harris PIGTAIL-36" Armored SS-lined SS 1/4" NPT(F) x 1/4" NPT(F) CGA 580 w/CV - 9103422

$346.22

View details
Harris SG960 Audio/Visual Dual Remote Alarm System - 4302104

$755.87

View details
Harris Model 8530-A-1" Pipeline Dry-Type Flashback Arrestor Assembly - 4300221

$1,619.00 ~~$1,999.78~~

View details
Harris 6639-G Gasket - 9002908

$2.32 ~~$2.43~~

View details
Harris CGA 300 Chrome Nut - 9003017

$8.03

View details
Harris CGA 510P Regulator Inlet Nut - 9002974

$8.38 ~~$11.07~~

View details
Harris CGA 580M AR/HE Chrome Nut - 9003050

$9.80 ~~$10.25~~

View details
Harris CGA 540 Regulator Inlet Stem - 9005110

$11.62

View details
Harris CGA 540 1/4" NPT 2.5" Chrome Stem - 9005363

$11.72

View details
Harris CGA 510 Nut Chrome - 9002973

$11.92 ~~$12.47~~

View details
Harris CGA 540M Oxygen Nut - 9002952

$12.13

View details
Harris CGA 350 Chrome Nut - 9003012

$12.15

View details
Harris Adaptor Hose Barb 1/8” x 1/4” MNPT Brass - 9007054

$12.72

View details
Harris CGA 350 Regulator Inlet Nut - 9003006

$13.42

View details
Harris CGA 350 Regulator Inlet Stem - 9005145

$13.70

View details
Harris CGA 346 Nut Chrome - 9002970

$14.28

View details
Harris CGA 320 Chrome Nut - 9002987

$14.28

View details
Harris CGA 320 Regulator Inlet Nut- 9002986

$14.72

View details
Harris Bushing 1/4” MNPT x 1/2” MNPT Brass - 9005386

$15.70 ~~$19.55~~

View details
Harris Tube Fitting 1/4” x 1/4” MNPT Brass - 9007051

$16.53

View details
Harris CGA 346 Regulator Inlet Stem - 9000319

$16.85

View details
Harris CGA 300 1/4 NPT 3.5" Chrome Stem - 9005184

$18.53

View details
Harris CGA 510P Nut Chrome - 9000429

$19.25 ~~$20.08~~

View details
Harris CGA 350 1/4" NPT 3.5" Chrome Stem - 9005179

$19.33

View details
Harris 1/4" Hose Barb Assembly Package - 9510501

$26.52

View details
Harris CGA 326 Regulator Inlet Stem - 9005170

$19.65

View details
Harris CGA 346 1/4" NPT 3.5" Chrome Stem - 9005181

$19.77

View details
Harris 4000psi/280bar 2" Brass Gauge - 9006281

$20.24 ~~$27.60~~

View details
Harris CGA 590 Nut Chrome - 9003061

$22.09 ~~$23.03~~

View details
Harris *30” Hg-0-30psi/2bar 2" Chrome Plated Brass Gauge - 9006270

$25.88 ~~$27.00~~

View details
Harris *30” Hg-0-30psi/2bar 2" Brass Gauge - 9006276

$26.45 ~~$27.60~~

View details
Harris *30” Hg-0-100psi/7bar 2" Chrome Plated Brass Gauge - 9006271

$26.45 ~~$27.60~~

View details

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.