What are the available size and connection options?

Sizes range from DN150 to DN250, featuring flanged inlet and outlet connections.

What is the average lead time for production?

The lead time is within 15 workdays during the off-season and one month during the peak season.

Temperature Reducing Devices

Name: Main Safety Relief Valve for Power Plant Boilers/Pressure Containers/Temperature Reducing Devices
Brand: Goole Valve technology Co., Ltd.
SKU: 2085889605

Zhejiang, ChinaGoole Valve technology Co., Ltd.

US$1.00

1 Piece

Product profile

Customization

Available

Pressure

Pn40

Structure

Used Together with Ga49h-16 Impulse Safety Valve

Model NO.

GAA49H

Material

Wcb

Size

DN150-250

Connecting Type

Flanged Inlet& Outlet

Medium

Steam, Air

Medium Temperature

Below 425 Deg C

Usage

Overpressure Protection Device

Application

Power Plant Steam Turbine Pipelines

Transport Package

Plywood Case

Specification

CE, SGS, TUV

Trademark

GOOLE, OEM

Origin

Wenzhou, Zhejiang, China

HS Code

8481400000

Production Capacity

10000PCS/Year

Key features

High Wear Resistance: Sealing surface uses Fe-Based Cr-Ni Stainless Steel overlay welding for erosion resistance.

Precise Pressure Control: Prevents pressure from exceeding allowable maximum values to ensure equipment safety.

Robust Material Construction: Constructed from WCB material to withstand high-pressure industrial environments.

Versatile Application: Suitable for power plant boilers, pressure vessels, and temperature reducing devices.

Flexible Sizing Options: Available in DN150-250 sizes with flanged inlet and outlet connections.

Efficient Structure: Works with Ga49h-16 impulse valve to drive piston for automatic opening and closing.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Goole Valve technology Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-07-09Nearest Port: Ningbo, ShanghaiAverage Response Time: ≤7.42hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, DDP, DAP

AI-Powered supplier vetting

SummaryThe supplier manufactures specialized equipment for oil refining and chemical production and also conducts hardware product manufacturing, research and development, sales, and related services. It reports ISO 9001 and ISO 14001 certification, two production lines, six to ten quality-control staff, and six to ten years of total R&D engineer experience. The supplier offers broad customization, OEM, and ODM services, with documented inspection, corrective-action, complaint-handling, and traceability procedures. Export experience is stated as 15 years, with 51%–70% of total sales from exports and self-operated import/export rights. However, it has no overseas agents or branches, warehouses, showrooms, or SDK availability; it also reports no new products in the past year and no valid manufacturing-capacity contract with related subcontractors. Customer cases are not specifically provided.

Supplier typeThe stated business scope includes manufacturing and sales of specialized equipment for oil refining and chemical production, hardware product manufacturing, hardware R&D, and ferrous metal casting. The company description also covers material purchasing, production, inspection, delivery, and after-sales service, indicating a manufacturer with integrated related operations.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 certifications. These are explicit certifications relevant to quality and environmental management systems.

After-Sales capabilityThe supplier states that its operations include after-sales service and has clear, followed procedures and records for handling customer complaints and corrective and preventive actions. However, it reports no overseas agents or branches and offers overseas services in zero countries, which limits directly evidenced overseas service coverage.

Production capacityThe supplier operates two production lines, maintains six to ten quality-control staff, has in-stock service capacity, and uses documented inspection, supplier assessment, corrective-action, complaint-handling, quality-assurance, and material-traceability procedures. Nevertheless, it reports no valid contract with associated subcontractors for manufacturing capacity, creating a documented weakness in subcontracting governance.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also provides OEM services for well-known brands and ODM services, demonstrating broad stated customization and manufacturing-design support.

Product Q&A

Q:What is the primary function of the A49H main safety valve?

It prevents pressure from exceeding the allowable maximum value in power plant boilers, pressure vessels, and temperature reducing devices to ensure safe operation.

Q:What material is used for the sealing surface?

The sealing surface is made of Fe-Based Cr-Ni Stainless Steel via overlay welding, providing strong resistance to wear and erosion after thermal treatment.

Q:How does the valve operate structurally?

When medium pressure rises, the impulse valve opens, driving the piston to descend and the main valve to open. When pressure normalizes, the impulse valve closes, and the main valve disc automatically closes.

Q:What are the installation requirements for this valve?

It must be installed vertically at the highest position, fastened on a gallows to support back-seat force, with exhaust pipes free of extra prestress and equipped with drainage to avoid water hammer.

Q:What is the maximum medium temperature for this valve?

The valve is designed for media with temperatures below 425 degrees Celsius.