Ductile Iron 500X Holding Pressure /Relief Pressure Valve

Still deciding? Get samples of $ !
Request Sample

Product Description

Basic Specifications

Model NO.
500X
Certification
ISO
Temperature
Ordinary Temperature
Connection
Flange
Valve Seat
Single-Seat
Structure
Diaphragm
Material
Cast Iron
Specification
DN40-DN500
Origin
China

Product Description

Flanged Ductile Iron 500X Pressure Relief Valve for Water System
Pressure Relief Valve View 1
Pressure Relief Valve View 2
⚙️

Pressure Reducing Valve automatically reduces a higher inlet pressure to a steady lower downstream pressure, regardless of changing flow rate and/or varying inlet pressure.

This valve is an accurate, pilot-operated regulator capable of holding downstream pressure to a re-determined limit. When downstream pressure exceeds the pressure setting of the control pilot, the main valve and pilot valve close drip-tight.

Our Pressure Reducing Valves adopt the latest technologies, with fully bore design, ensuring lowest head loss when fully open. Designed with anti-cavitation features for applications with high potential for damage, it provides optimum internal pressure control through a unique trim design.

Working Mechanism & Application

Working Mechanism

Pressure Relief Function: The main valve is installed at the sluicing bypass way in parallel with main pipelines. When upstream pressure exceeds the set value of the pilot valve, the main valve opens to lower pressure, preventing water hammer and ensuring pipeline safety.

Pressure Sustaining Function: When installed in-line (series), it stays closed if upstream pressure is below the set value. It opens automatically when pressure exceeds the limit to maintain a stable upstream range, essential for city water supply and fire hydrant systems to prevent excessive pumping from branched lines.

Structural Components

The system consists of a master valve, pilot valve, guide regulating valve, needle valve, ball valve, micro-strainer, and pressure gauges. It is a conduit pipe controlled system available in diaphragm or piston types depending on diameter.

Structure Drawing 1
Structure Drawing 2
No. Component Material
1Valve BodyDuctile Iron
2Valve SeatDuctile Iron
3GasketNBR
4Sealing GlandDuctile Iron
5Valve DiscDuctile Iron
6Ball ValveBrass
7DiaphragmNBR
Detailed Dimensions
Product Setup
Production Photo 1
Production Photo 2
Final Product Inspection

Frequently Asked Questions

Can I have a sample order for the valve?
Yes, we welcome sample orders to test and check quality. Mixed samples are also acceptable.
Can you provide OEM or ODM services?
Yes, we have a specialized research and development team. Products can be manufactured according to your specific requests and designs.
What certifications and documentation can you provide?
We can provide ISO9001:2000, CE certification, DNV, LR, CCS, FM, and UL certifications. Additionally, Test Reports, Material Analysis Certificates, and Certificates of Origin are available upon request.
How do I proceed with an order for a valve?
Step 1: Share your requirements or application. Step 2: We provide a quote based on your needs. Step 3: Customer confirms samples and places a deposit. Step 4: We arrange production.
What is your standard lead time?
For samples, delivery takes 2-5 days. For mass production, the lead time is approximately 15-60 days after receiving the deposit and final approval.
What are the terms of your after-sales service?
We offer a 12-month warranty from the date of shipment. We are responsible for all quality issues, including mold quality, raw material control, and final water leakage testing.

Related Products