CCC certified smoke exhaust valve PYF SDc-k

1、 Product Definition

Installed at the end of each branch pipe (smoke inlet) of the mechanical smoke system, it is usually in a closed state and meets the requirements of air leakage. In case of fire or when smoke exhaust is needed, the valve is manually and electrically opened to provide smoke exhaust function. Valves with decorative openings or those that have undergone decorative treatment are called exhaust vents.

Smoke exhaust valves are generally composed of valve bodies, blades, actuators, and other components.

2、 Model Description

PYF ①② - (A+250) × B A: nominal width of valve 250: actuator position B: nominal height of valve

① - Product control mode W: Temperature sensor control automatic shutdown S: Manual control shutdown

Dc: Electric control electromagnet is turned off Dj: Electric control motor is turned off

Dq: Electric pneumatic mechanism closed

② - Product function code F: with air volume adjustment function Y: with remote reset function

K: Equipped with position signal feedback function after valve opening and closing in place

For example:

PYF-SDC-K - (1250+250) ╳ 800 indicates that it has signal feedback functions for manual opening, electric solenoid opening, and valve opening.

3、 Product Features

1. Low leakage and good airtightness;

2. Strong anti-corrosion performance and long service life;

3. Flexible opening and closing of valves, accurate position feedback signals;

4. Good fire resistance integrity.

4、 Performance parameters

1. Nominal pressure: ≤ 300Pa at ambient temperature;

2 Applicable media: air (smoke);

3 Leakage rate: a: At ambient temperature, the static pressure difference before and after the valve blade is 300 ± 15Pa,

Leakage per unit area ≤ 500m³/(m²)；

4. Fire resistance time: ≥ 1.5 hours (GB/T15930).

5、 Appearance of smoke exhaust valve

6、 Specification and size of smoke exhaust valve

Combination valve is a valve combination that has obtained the fire 3C certificate, and the combined valve meets the ventilation area (interface requirements);

When placing an order for a combination valve, the installation method of the valve (pipeline type, wall type, or other) must be informed;

In order to maintain consistency with the installation dimensions of the user, the company's products will not drill holes on the flange unless otherwise specified by the user.