Product Description:

Features: ZSTZ upright sprinkler made ​​of copper alloy frame, thermal glass balls, seals and other components, compact structure, beautiful appearance.

1. the head frame is made of high-quality copper, graded forging molding, high strength, corrosion resistance, surface polished chrome plated.

 2. splash plate should be facing upright installation. Necessary and upright collector hood combination installation.

the main technical parameters:

1.nominal diameter: 15mm, 20mm,
2.Connection thread: R1 / 2, R3/42,
3.Flow coefficient: K = 80 ± 43,
4.nominal operating temperature: 57 ℃, 68 ℃, 79 ℃, 93 ℃
5.rated working pressure: 1.2MPa,
6.factory seal test pressure: 3.2MPa.100% detection
7. the amount of water spray nozzle down: 89%
8.a special response (indicated by T) using Φ5mm glass ball, response time factor: 50