Apollo 129FC Fire System Pressure Control ValveIndonesia Industrial Parts

Description

The Model 129FC automatically reduces high pressure in building riser pipe to a pressure that can be easily handled by the components it supplies. The normally open, spring loaded pilot, sensing downstream pressure, responds to changes in pressure and causes the main valve to do the same. The net result is a constant modulating action of the pilot and main valve to hold the downstream pressure constant.

Features

Maintains constant discharge pressure despite variations in demand or inlet pressure. Eliminates pressure fall off
Easily adjusted for discharge pressures ranging from 50-165 psi
Fully operated by line pressure; no external power source required
Soft seat for drip-tight closure
Easily cleaned, repaired and adjusted without removal from the line
Underwriters Laboratories listed, Control Number 18S5
Diaphragm assembly guided top and bottom is the only moving part of the main valve
UL / ULC Listed for pressure control service in sizes 1.5” thru 8”, globe or angle configuration
No packing glands or stuffing boxes to service
Horizontal or vertical mounting in all sizes
ANSI Flanged Class 150 or Class 300
Grooved end configuration available on 1.5” thru 6”
Screwed end configuration available on 1.5”, 2”, 2.5” and 3”
Wide range of materials available
Factory tested

Sizing

Because the 129FC can experience a wide range of flow rates-ranging from zero, when the system is not being used, to the flow required by a single sprinkler, or full system demand-prop-er sizing is important. Use the smallest available valve that is consistent with the following maximum demand chart.