Double Port Twin Spring Safety Relief 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 boasts a sophisticated design, featuring two identical safety valves mounted on a Y-shaped joint. The nominal diameter specifically refers to the inlet diameter of this Y-shaped joint, ensuring precision and compatibility.
Engineered for excellence, this valve is ideal for steam, air, and other media with operational temperatures up to ≤ 350°C. It ensures safety by automatically opening to discharge excess pressure when the internal pressure surpasses permissible limits. Once the pressure drops to the designated safe level, it automatically seals shut, guaranteeing the seamless and secure operation of your equipment or pipeline.

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

 

Onn Valve Co., Ltd. offers comprehensive after-sales services, including routine valve maintenance and troubleshooting training. Our experts provide both remote and on-site technical guidance for valve installation and operation. We ensure prompt responses to technical inquiries within 24 hours and offer an 18-month warranty period (as per national standards). Enjoy 24-hour technical support and various after-sales services free of charge during the warranty period. Additionally, we provide lifetime after-sales service and a limited supply of free replacement parts for 18 months.

Application Scope

FAQ

 

Q1: What is a safety valve?
1. The primary function of safety valves is to protect life, property, and the environment. A safety valve is engineered to open and release excess pressure from a container or device, then re-close to stop further fluid release once it reverts to a safe pressure level.
2. Safety valves serve as critical safety devices, often regarded as the last line of defense. It is crucial to ensure that they function correctly under all conditions. They are not designed for use as process valves or pressure regulators and should not be misused. Their sole purpose is to provide overpressure protection.

Q2: How does a Safety Valve work?
The operational principle of a safety valve is outlined below:
1. Opening: When system pressure surpasses the set pressure, the valve disc opens due to the combined force of the medium pressure and spring tension, thereby releasing excess pressure.
2. Staying Open: As the system pressure stabilizes within the safety valve's set pressure, the spring balances out, maintaining system pressure and keeping the valve open.
3. Closing: When the system pressure falls below the safety valve's set pressure, the spring fails to lock and seal, leading to the valve disc closing under the medium pressure, ensuring no further increase in pressure.