Are the stainless steel ball valves approved for use with propane or natural gas?

NO!

Boshart Industries stocks three lines of stainless steel ball valves: SSBV304, SSBV1000, & SSBV2000 series.

These S.S. ball valves are NOT SUITABLE for use in a propane (LP) or natural gas (NG) system!

For use in a propane or natural gas system the valves must be third party certified by CSA to one or more of the gas approvals. In addition, the valve body MUST have the proper corresponding gas approval marking molded into the casting. If the valve does not have the mark, it cannot be used in these systems.

Gas Approvals & Markings

All gas valves must be 3rd party certified to the applicable standard that covers the intended application. The CSA logo has replaced the older CGA and AGA markings. The CSA logo must have the C or US logo to indicate it was tested to the Canadian or US standard. Most valves will have both the C and US markings below the log as detailed below.

Glossary of Approvals & Markings on Valves

Below is a brief description of each of the rating marks on the gas valves.

1/2G or 1/2 PSI Mark

■ Signifies 1/2PSIG rating for appliance manufacturers use

■ ANSI Z21.15 (USA) CGA 9.1 CAN

"American National Standard/Canadian Gas Association Standard for Manually Operated Gas Valves For Appliances, Appliance Connector Valves and Hose End Valves"

■ Temperature range of 0°C to 51.5°C (32°F to 125°F)

■ Must include manufacturing date (YY/MM)

■ Intended to be used as part of a gas fired appliance

■ Not for use in building piping systems

5G Mark

■ Signifies 5PSIG rating for inline valves

■ Standard 3.88 (USA) & CR91-002 (CAN) Manually Operated Gas Valves for Use on Piping

■ CR91-002 Temperature range between -40°C to 52°C (-40°F to 125°F)

■ Standard 3.88 Temperature range between 0°C to 51.5°C (32°F to 125°F)

125G or BRS125G Mark

■ Signifies 125PSIG rating for United States

■ ASME B16.33 Standard Manually Operated Metallic Gas Valves for Use in Gas Piping Systems Up to 125psig sizes 1/2" to 2"

■ Temperature range between -20°F to 150°F

CGA3.16 or CAN-3.16 Mark

■ Signifies 125PSIG rating for Canada for Outdoor Use

■ CAN/CGA-3.16 Standard Lever Operated Non-Lubricated Gas Shut-Off Valves

■ Suitable for continuous use over the temperature range of -30°C to 65°C (-22°F to 149°F)

WOG (Water-Oil-Gas) rating does not cover combustible gases such as propane (LP) or natural gas (NG)!

The WOG rating has not been a good description and there is movement within the industry to the more descriptive CWP (Cold Working Pressure). Regardless of what it is called, it remains a limitation of the pressure valve only.

For valves with gas certification see 0832 / 0832R, 0833, 0834, 0835 / 0835TP, 0825 / 0825NL & 0827 / 0827NL series.