Safety Guidelines For
Dupps Batch Hydrolyzors(tm)

Safety is your responsibility and ours. You are cautioned to read and understand the safety guidelines below before operating, or performing maintenance on, the equipment described in the Dupps Batch Hydrolyzor Safety Guidelines and Operating Instructions manual.

To protect your employees, follow the training suggestions, maintenance schedules and procedures, and the operating safeguards described in the manual. The operation, safety, and performance of the equipment may be materially impaired if:

• the equipment has not been operated in conformity with the instructions in this manual; or
• repairs, alterations, or replacements not provided for in the Batch Hydrolyzor manual have been made without approval of the Dupps Company.

These safety guidelines have been prepared to help equipment operators and maintenance personnel practice good safety procedures. These guidelines should be used as a supplement to other safety precautions and warnings provided in the following:

1. All manuals pertaining to the equipment, auxiliary equipment, and controls. These include manual or other publications supplied by the manufacturers of the component parts of the equipment.
2. Federal and state safety laws and regulations. See the latest edition of the Occupational Safety and Health Act (OSHA) available from the Department of Labor, Washington, DC.
3. Local safety rules and codes; and facility safety procedures.
4. Good common sense.

Warning Signs and Labels
Make certain that all warning signs and labels are kept clean and visible. All lost or damaged warning signs and labels must be replaced immediately. Replacement warning signs and labels are available from the Dupps Company.

Safety Alert Symbol
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

The safety alert symbol is used in this manual. It is also used on safety warning signs and labels that may be attached to the equipment. This symbol will always be used in combination with a signal word, DANGER or WARNING which indicates the level of severity of the potential hazard as follows:

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Operating Safety
This equipment should be operated only by qualified persons, instructed in safety and all equipment functions. Every person operating this equipment and every person working the area of this equipment must be trained to understand and use your facility's Energy Control (Lockout/Tagout) Procedures. Refresher training should be done periodically.

Do not operate the equipment with safety guards, shields, covers, and other protective devices disconnected, removed, or out of place. If a guard, shield, or cover, or other protection (i.e. electrical interlock or alarm) is removed for maintenance or repairs, install it properly before connecting the power supply to the equipment.

Maintenance Safety
Assign only trained, qualified service or maintenance personnel to perform maintenance and repair work on this equipment.

Do not perform maintenance on this equipment until you read and understand all the safety instructions. Follow your facility's Energy Control (Lockout/Tagout) Procedures when you perform maintenance and repair work on this equipment. When you perform maintenance or repair work inside a cooker or other vessel, follow your facility's procedures for working in Confined Spaces.

Performing maintenance according to recommended schedules for the equipment as set forth in the Batch Hydrolyzor manual is a further safeguard for enhanced operator and equipment safety.

After performing maintenance, install all guards, shields, covers, and other safety devices. Install all fasteners provided for attaching these devices to prevent accidental or unauthorized removal. Make sure all guards, shields, covers, and other protective devices (i.e. electrical interlock or alarm) have been installed before removing lockout protection. Be sure all safety devices are in place when the equipment is operating.

Pressure Vessel Repairs
Most insurance underwriters and boiler inspection agencies (state and local) require that pressure vessels be manufactured according to the ASME Pressure Vessel Code. The ASME Code is a set of criteria for the design and manufacture of pressure vessels.

All ASME Code pressure vessels must have a National Board number and the proper Code stamp. The Code also requires the proper Code paperwork, usually a Manufacturer's Data Report called a U-1 form.

The National Board Inspection Code (NBIC) is a set of procedures for boiler inspectors. The Code has the status of law in most states and local jurisdictions. The NBIC procedures include alteration and repair of pressure vessels. The NBIC procedures must be followed when a pressure vessel is altered or repaired to maintain the code rating on the vessel. These procedures vary depending on the nature of the work to be done and the state in which the vessel is located. They include:

1. The authorized inspector and local jurisdiction must grant approval­before the repair is made.
2. The firm making the repair must have a National Board "R" stamp; and use qualified welders and Code-approved materials.
3. The repair must be inspected as required by the authorized inspector and local jurisdiction.
4. The owner must maintain repair records.

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