GB/T Certified Double-Port Safety Valve

• Media: Steam etc
• Certification: CCC, ISO, CE
• Temperature: Ordinary Temperature
• Connection: Flange
• Pressure: Adjustable
• Closed: Open
• Model NO.: A38H-16C-DN100-1
• Structure: Spring
• Material: Wcb
• Suitable Temperature: Below 350 Deg C
• Application: Steam Pipeline
• Pressure Range: Pn16-Pn64
• Product Structure: Spring Loaded Full Lift Type
• Color: Customizable
• Mafnufacture License: Tsf733049-2027
• Transport Package: Plywood Case
• Specification: DN50-DN150
• Trademark: ONN
• Origin: China
• HS Code: 8481400000
• Production Capacity: 48000PCS/Year

Product Description

This valve is equipped with two safety valves of the same model and specification on a Y-shaped joint, and its nominal diameter refers to the inlet diameter of the Y-shaped joint.
This valve is tailored for use with steam, air, and other media operating at temperatures up to 350°C. It is ideal for installation on various equipment or pipelines. When the internal pressure exceeds acceptable limits, the valve automatically activates to fully release excess pressure. Once the pressure decreases to a safe level, the valve closes autonomously, ensuring the continued safe operation of your systems.

Product Parameters

DN(mm)	size
	L	L1	B	DN`	do
50	200	225	165	40	2*20
80	230	270	190	65	2*32
100	235	285	220	80	2*40
150	320	375	250	125	2*65

 

Detailed Photos

 

 

 

Certifications

After Sales Service

 

Our company offers comprehensive after-sales services, including routine valve maintenance and training for troubleshooting common issues. We provide both remote and on-site technical guidance for valve review, installation, and operation. Technical consultations are answered within 24 hours. A warranty period of 18 months is provided in adherence to national standards. We offer 24-hour technical support, free after-sales service during the warranty period, lifetime after-sales service, and limited free supply of wearing parts for the first 18 months.

Application Scope

FAQ

 

Q1: What is a safety valve?
1. Safety valves are crucial for safeguarding life, property, and the environment. They are designed to automatically open and release excess pressure from a container or system and then re-close to prevent further fluid release once normal conditions are restored.
2. Safety valves act as critical protection devices, often serving as the last line of defense. It is essential to ensure they can function reliably under all conditions. Unlike process valves or pressure regulators, safety valves are solely for overpressure protection and should not be misused.

Q2: How does a safety valve work?
The working principle of a safety valve can be described as follows:
1. Open: When system pressure surpasses the set threshold, the valve disc opens due to medium pressure and spring force, allowing excess pressure to escape.
2. Keep open: As the system pressure stabilizes to the set level, the spring maintains balance, keeping the safety valve open under ongoing stress.
3. Close: When system pressure drops below the set level, the spring force is unable to lock and seal the valve, leading the valve disc to close under medium pressure, preventing further pressure increase.