Does the valve require external power?

No, the valve is self-actuated, operating via spring force and system pressure without the need for external power.

What are the typical applications?

Ideal for chemical processing, power generation, water treatment, and pressure vessel systems requiring fail-safe protection and leak-tight sealing.

How does the normally closed mode function?

In NC mode, the valve remains sealed during normal operation. When pressure exceeds the pre-set threshold, it overcomes spring force to release excess pressure, then reseals when pressure drops.

DIN Pn80 600psi Sewage Treatment Relief Spring Slightly Opened Closed Safety Valve

Name: DIN Pn80 600psi Sewage Treatment Relief Spring Slightly Opened Closed Safety Valve
Brand: YOONAD VALVE (WUXI) CO., LTD.
SKU: 2248626235

Jiangsu, ChinaYOONAD VALVE (WUXI) CO., LTD.

US$75.00

1-149 Pieces

US$50.00

150-299 Pieces

US$20.00

300+ Pieces

Product profile

Customization

Available

Media

Water, Oil

Standard

ANSI, ISO, JIS, DIN, En593 BS5155 En1092 ISO5211

Certification

CCC, ISO, CE

Temperature

High Temperature

Connection

Flange

Pressure

Adjustable

Closed

Open

Structure

Safety

Material

Stainless, Wcb

Driving Mode

Manual

Connection Form

Flange

Valve Stem

Normal

Work Pressure

MID-Pressure (2.5MPa< Pn <6.4MPa)

Working Temperature

Medium Temperature (120°C<T<450°C)

Material of Seal Surface

Metal Hard Sealed

Valve Body

Forge Welding

Application

Industrial Usage, Water Industrial Usage, Household Usage

Structure

Safety

Seal Form

Hard Seal/Soft Seal

Transport Package

Wooden Case

Specification

customized

Trademark

Yoonad

Origin

China

HS Code

8481804090

Production Capacity

10000PCS/Year

Key features

Dual Configurable Modes: Supports both normally open (NO) and normally closed (NC) configurations for diverse system needs.

Adjustable Pressure Setting: Pre-calibrated spring tension allows precise matching to system MAWP for accurate relief control.

High Durability Materials: Constructed from stainless steel, carbon steel, or alloys with corrosion-resistant springs.

Leak-Tight Sealing: Precision-machined disc and seat ensure reliable sealing to prevent media leakage.

Self-Actuated Operation: Operates via spring force and system pressure without requiring external power.

Wide Media Compatibility: Suitable for liquids, gases, steam, and aggressive chemicals in industrial applications.

Multiple Certifications: Complies with CCC, ISO, CE standards and ANSI, JIS, DIN specifications.

Low Maintenance Design: Minimal moving parts reduce wear and lower long-term operational costs.

Company profile

Importers and ExportersExperienced TeamQuality AssuranceFast Delivery

YOONAD VALVE (WUXI) CO., LTD.

Jiangsu, China

Business Type: Manufacturer/FactoryExport Year: 2018-10-02Nearest Port: shanghai, ningboAverage Response Time: ≤4.62hTerms of Payment: T/T, D/P, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA

About Our Factory & Business Background

Address137-2901 Qingyang Road, Liangxi District, Wuxi, Jiangsu, China

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsValve, Ball Valve, Gate Valve, Check Valve, Globe Valve, Butterfly Valve, Control Valve, Stainless Steel Ball Valve, Stainless Steel Butterfly Valve, Stop Valve

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:How does the valve work?

Spring-loaded normally open/closed safety valves operate via a precision spring-and-disc mechanism, driven by system pressure to maintain safety or flow control, with two core configurable modes.

Q:What are the configurable modes?

The valve offers normally closed (NC) for overpressure protection and normally open (NO) for continuous flow or ventilation, adapting to diverse system needs.

Q:How is pressure adjusted?

Equipped with adjustable spring tension, the valve allows precise matching to the system's Maximum Allowable Working Pressure (MAWP) for accurate relief or flow control.

Q:What materials are used?

Constructed from robust materials such as carbon steel, stainless steel, or alloy steel, offering exceptional resistance to high temperatures, corrosion, and pressure fluctuations.

Q:What is the sealing mechanism?

The valve core integrates a spring-loaded disc that presses against a precision-machined seat, forming a reliable seal to prevent media leakage under standard operating conditions.