A.Y. McDonald 9702 User Manual

Certificate of Material Quality

I hereby certify the ( 9702 - 9703 ), manually operated, brass steam stops as manufactured by A.Y. McDonald Mfg. Co. contain
materials per ASTM B-584 Copper Alloy Number 84400 commonly known as 81-3-7-9 cast brass.

CHEMICAL REQUIREMENTS

* Copper 78.0 - 82.00 %

Tin 2.3 - 3.50 %
Lead 6.0 - 8.00 %
Zinc 7.0 - 10.00 %

* Nickel - 1.00 %

Iron - 0.40 %
Phosphorus - 0.02 %

*In determining copper content, copper may be computed as copper plus nickel, to the maximum nickel limit specified.

PHYSICAL REQUIREMENTS

Tensile Strength 29,000 PSI Minimum
Yield Strength 13,000 PSI Minimum

Elongation in 2 in. 18 % Minimum

The inlet and outlet of the valves are threaded per ANSI/ASME B1.20.1, i.e., inside iron pipe threads. The valves
are designed and rated for use with steam only and at working pressures of 125 PSI and a maximum temperature
of 250 degrees Fahrenheit. Each valve is tested at a minimum of 125 PSIG using air under water.

Thursday, June 30, 2005.

Andy Shea
Quality Assurance Manager
A.Y. McDonald Manufacturing Co.

S2-QA42697.doc

Certificate of Material Quality

I hereby certify the ( 9710 - 9711 ), manually operated, brass steam stops as manufactured by A.Y. McDonald Mfg. Co. contain
materials per ASTM B-584 Copper Alloy Number 84400 commonly known as 81-3-7-9 cast brass.

CHEMICAL REQUIREMENTS

*Copper 78.0 - 82.00 %

Tin 2.3 - 3.50 %
Lead 6.0 - 8.00 %
Zinc 7.0 - 10.00 %

* Nickel - 1.00 %

Iron - 0.40 %
Phosphorus - 0.02 %

*In determining copper content, copper may be computed as copper plus nickel, to the maximum nickel limit specified.

PHYSICAL REQUIREMENTS

Tensile Strength 29,000 PSI Minimum
Yield Strength 13,000 PSI Minimum
Elongation in 2 in. 18 % Minimum

The inlet and outlet of the valves are threaded per ANSI/ASME B1.20.1, i.e., inside iron pipe threads. The valves
are designed for steam use only and rated for steam working pressures of 150 PSI and a maximum temperature of
250 degrees Fahrenheit. Each valve is tested at a minimum of 150 PSIG using air under water.

Thursday, June 30, 2005.

Andy Shea
Quality Assurance Manager

A.Y. McDonald Manufacturing Co.

S3-QA42797.doc