Dixon AVAPR250F-I User manual

Brand: Dixon

Model: AVAPR250F-I

Type: User manual

This manual is also suitable for

Dixon Pressure Restriction Valves (AVAPR250F-I) are designed to restrict water pressure according to NFPA 14 guidelines for Class I and III standpipe systems. It can reduce inlet pressure to a desired level to enhance safety and comply with regulations. The valve has a restraining collar and removable pin that can be adjusted to meet specific pressure requirements, making it suitable for various applications. Additionally, it is designed for easy installation inline or at hose outlets.

Pressure Restricting Valves

Model AVAPRF250-I, 2½" x 2½", Female x Female

Combination Angle Hose & Pressure Restricting Valve

Intended Use

This pressure restricting valve should be installed per NFPA 14, Class I or III Standpipe System inline or Hose Outlet. This device

serves as a means of restricting existing high pressure at the hose outlet under ow conditions only. This valve is designed to restrict

inlet pressures from a maximum rated inlet pressure of 175 PSI, down to prescribed levels in accordance with NPFA 14. This device

features a restraining collar and yoke with removable pin that may be removed only if so specied by the local re department to

provide higher discharge pressures.

Acceptance Testing

Upon completion of system installation, each pressure restricting valve shall be tested in accordance with NFPA 14 to verify that inlet

and outlet pressures at the valve are in accordance with design and that the valve is operating correctly.

Valve Maintenance

A visual inspection of the valve body, threads and collar assembly should be conducted prior to installation and periodically to insure

there is no physical damage. The valve should also be tested and maintained in accordance with NFPA 25. If the internal parts

become damaged, the valve should be replaced with a functional equivalent.

Setting the Valve

1. Determine proper set number from chart.

2. Loosen lock screw (B).

3. Rotate control collar (C) until set number lines up with pin (A) being sure bottom of control collar (C) is against pin (A).

4. Tighten control collar lock screw (B). Valve is now ready for use.

5. To open the valve fully, pull the release pin (E) and ip the restraining yoke (D) out of the way.

6. Test after installation and periodically in accordance with NFPA 13 and/or 14, whichever is applicable, and NFPA 25.

Sheet 1 of 2 Rev B

Installation Instructions

E.C. Number: 10234, Dated: October 15, 2019Drawing No. 4600701135

E.C. Number: 10234, Dated: October 15, 2019

Dixon

325 Arbor Court

Winchester, VA 22602 USA

540-535-2181

dixonvalve.com

Readings based on ow held to 250 GPM and outlet pressures of 100, 110, 120, and 150 PSI.

Example: Inlet Pressure 120 PSI, Discharge Pressure 100 PSI - the Set Number should be 15

Sheet 2 of 2 Rev B

Model AVAPRF250-I

Setting at 250 GPM

AVAPRF250-I

Pressure Loss Across Valve at 250 GPM

Drawing No. 4600701135

Dixon AVAPR250F-I User manual

Brand: Dixon

Model: AVAPR250F-I

Type: User manual

This manual is also suitable for

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Dixon AVAPR250F-I User manual

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Dixon AVAPR250F-I User manual

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