N.J. Admin. Code § 12:90-4.5

Current through Register Vol. 56, No. 23, December 2, 2024

Section 12:90-4.5 - Low pressure boilers

(a) Low pressure boilers shall comply with Section IV, Heating Boilers of the ASME Code.

(b) Existing low pressure boilers installed prior to the effective date of the standards referenced in (a) above may remain in use while the Bureau of Boiler and Pressure Vessel Compliance is in receipt of favorable and current inspection reports.

(c) Low pressure boilers as described in (b) above shall be converted before the next annual inspection to conform to the standards referenced in (a) above with regard to appliances, auxiliaries and safety devices.

(d) Each automatically fired hot water boiler falling within the terms of 34:7-14(a) shall have an automatic low-water fuel cutoff which has been designed for hot water boiler service when such boiler exceeds a heat input of 400,000 BTU per hour except that such low water cut off shall not be required for hot water supply boilers.

(e) When low pressure boilers are connected to a common header, the connections from each boiler having a manhole opening shall be fitted with two stop valves having adequate free-blow drains which shall be located between the stop valves.

1. One of these stop valves shall be placed as near the boiler nozzle as practicable and the other valve placed where the interconnection joins the common header.

2. Where such protection has not been provided in existing installations or where such stop valves may be omitted optionally on hot water boilers where full open internal inspection is less frequently performed, no entry shall be made through the manway for any purpose until all system boilers have been depressurized and vented.

N.J. Admin. Code § 12:90-4.5

Amended by R.1990 d.24, effective 1/16/1990.
See: 21 New Jersey Register 3247(a), 22 New Jersey Register 235(a).
Amended by R.1994 d.599, effective 12/5/1994.
See: 26 New Jersey Register 3810(a), 26 New Jersey Register 4828(a).
Amended by R.1996 d.588, effective 12/16/1996.
See: 28 New Jersey Register 4060(a), 28 New Jersey Register 5224(a).
In (d), added reference to boiler heat input.