Products Description

Overview

Purpose: The sprinkler retard chamber acts as a buffer, temporarily holding water from pressure surges that might trigger the alarm system.

How it works: It's connected to the alarm valve through a restriction nozzle. When a pressure surge occurs, the water enters the retard chamber. If the surge is brief, the water drains out through the restriction nozzle before it can fill the chamber enough to activate the alarm.

Sustained flow: However, if there's a sustained flow of water, like from an open sprinkler head due to a fire, the water will fill the chamber faster than it can drain out, eventually triggering the alarm system.

Key components: Sprinkler retard chambers are typically made of stainless steel or cast iron and are part of the alarm valve trim. They often include a restriction nozzle or orifice to control the drainage rate.

Features

Product Name: Sprinkler Retard Chamber

Material: Carbon Steel

Application: alarm check, wet pipe, deluge, and preaction valves in sprinkler systems

Products Description

forede® Sprinkler retard chamber with different size and standard for option:

Inlet	Outlet	Body	Bushing
1/2", NPT	3/4", NPT	Cast Iron	Cast Iron

FAQ

Q: What is sprinkler retard chamber?

A sprinkler retard chamber is a component in wet-pipe fire sprinkler systems, typically installed with an alarm check valve. It temporarily holds water that might pass through the valve due to pressure surges, preventing false alarms from being triggered by minor pressure fluctuations.

Q: Why is sprinkler retard chamber used in a sprinkler system?

It is used to delay the water flow to the water motor gong or pressure switch, ensuring that only sustained water flow from an actual sprinkler activation triggers the alarm. This helps avoid nuisance or false alarms caused by momentary pressure spikes.

Q: How does the sprinkler retard chamber work?

When a minor or brief surge in pressure occurs, the water enters the retard chamber. If the pressure stabilizes quickly, the water drains out through a small orifice. If the water flow is continuous (such as in the case of an activated sprinkler), the chamber fills and sends water to the alarm device, triggering it.

Q: Do all fire sprinkler systems require a sprinkler retard chamber?

No. Retard chambers are mainly used in wet-pipe systems with alarm check valves. They are typically not required in systems using flow switches or dry-pipe valves.

Q: What are signs of a malfunctioning sprinkler retard chamber?

Frequent false alarms.

No alarm during actual sprinkler activation.

Water leakage around the chamber.

Audible noises or delayed alarm actuation.