When do you need two stop valves in a boiler?

Two stop valves are required when two boilers are connected to a common steam header or when a single boiler is connected to a steam header having another steam source. In this case boiler(s) should have at least one manhole.

What does pg-58.3.2 require for two boilers?

Question: PG-58.3.2 requires, for two or more boilers connected to a common steam header, that the connection from each boiler having a manhole be fitted with two stop valves having an ample free-blow drain between them. Does this requirement apply if neither of the two boilers has a manhole?

What kind of certificate does attack boiler have?

Company ATTACK, s.r.o. is holder of the quality certificate ISO 9001 issued by the company Lloyd’s Register Quality Assurance for boiler design, development, manufacturing and service of gas and biomass boilers. In 2018 the company ATTACK was awarded by the certificate Bisnode Selected Premium Company.

Can a chimney be connected to a boiler?

Proper connection of the boiler to the chimney requires several aspects, not every house is the same height and does not have the same area. European manufacturer, exporting to all over the world.

Can a boiler be placed in an unclassified space?

July 26, 2011 All fired boilers including Anaerobic Digestion Boilers cannot be placed in spaces designated as hazardous locations due to the spark or flame ignition and standing flame during operation. These spaces are designated ‘Unclassified Locations’ in accordance with NFPA codes, standards, and recommended practices.

What kind of boiler is Walker Process Equipment heatx?

The Walker Process Equipment HeatX™ boiler is a Scotch Marine fire tube boiler and is covered by National Fire Protection Association, NFPA, Codes, Standards, and Recommended Practices. The most important of these are:

How big does a boiler have to be to be considered hazardous?

This applies to boilers with fuel input rating of 12,500,000 BTU/hr (3663 kW) or greater. Paragraph A.5.3.8.1, states: “Locations at which natural gas, propane, or fuel oil systems are installed in compliance with this code normally are not considered hazardous locations for electrical equipment as defined in NFPA 70, National Electrical Code.