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Glass Bulb Fire Sprinkler with Check Valve
  • Glass Bulb Fire Sprinkler with Check ValveGlass Bulb Fire Sprinkler with Check Valve

Glass Bulb Fire Sprinkler with Check Valve

Model:3024
The ANKE Fire Sprinkler is a fire protection component featuring a compact body, a thermal glass-bulb assembly, and an integrated check valve. Designed for integration into compatible fire suppression equipment, this model combines a threaded inlet connection with a practical structure to support equipment assembly and application-specific fire protection requirements. Manufactured and supplied by Ningbo Kaituo Valve Co., Ltd. under the ANKE brand, the Glass Bulb Fire Sprinkler with Check Valve is intended for B2B customers, including fire protection equipment manufacturers, distributors, system integrators, and OEM buyers. Its specified M30 × 1.5 inlet thread provides a defined connection interface for equipment compatibility assessment. The Fire Sprinkler specification also identifies a gauge connection thread of M10 × 1–12.5, an integrated check valve, and no separate safety device. The outlet thread, dip tube thread, operating pressure, and thermal activation temperature should be confirmed against the manufacturer's approved technical documentation before product selection. For international procurement projects, applicable CE and TÜV certification documentation can be requested for review.

Key Features of the Model 3024 Fire Sprinkler

1. Thermal Glass-Bulb Assembly

The Fire Sprinkler features a glass-bulb(JOB) assembly intended for thermal activation in compatible fire protection equipment. The bulb is designed to respond to its specified activation temperature as part of the system's operating mechanism. The exact activation temperature and performance characteristics must be confirmed for the selected configuration.

2. M30 × 1.5 Inlet Thread

The Fire Sprinkler features an M30 × 1.5 inlet thread for connection to compatible equipment. Before installation, buyers should verify thread dimensions, sealing requirements, mating components, and the relevant assembly specifications to ensure proper compatibility.

3. Integrated Check Valve

According to the product specifications, the Fire Sprinkler incorporates a check valve. This component supports the intended one-way flow function under its designed operating conditions.

4. Compact and Practical Design

The integrated body and thermal activation assembly provide a compact configuration for equipment integration. The overall suitability of the product depends on the installation space, connection interface, operating conditions, and requirements of the complete fire suppression assembly.

5. Manufacturer and Certification Documentation

Ningbo Kaituo Valve Co., Ltd., operating under the ANKE brand, specializes in fire extinguisher valves and related fire protection components. For procurement and compliance reviews, customers can request relevant product drawings, technical specifications, quality documentation, and applicable certification records.

6. OEM and ODM Project Support

For qualified B2B projects, customers may contact ANKE to discuss technical requirements, drawing review, connection compatibility, product identification, and packaging requirements. Any proposed modification must be evaluated for manufacturing feasibility, product performance, and applicable certification implications.

Technical Specifications

Specification Model 3024
Product Name Fire Sprinkler
Model Number 3024
Inlet Thread M30 × 1.5
Gauge Connection Thread M10 × 1–12.5, subject to drawing confirmation
Check Valve Yes
Safety Device No separate safety device indicated in the supplied specification
Applicable Certifications  CE and TÜV documentation

Glass-Bulb Activation Temperature and Bulb Colour

The activation temperature is the single parameter that defines how a glass-bulb sprinkler responds, and it is not a free choice. Under the framework aligned with EN 12259-1, nominal activation temperatures for glass-bulb sprinklers commonly fall within 57 °C to 141 °C, with 57 °C, 68 °C, 79 °C, 93 °C and 141 °C among the standard ratings[reference:0]. The bulb liquid colour provides a quick visual identifier: orange for 57 °C, red for 68 °C, yellow for 79 °C, and green for 93 °C[reference:1][reference:2].

The Model 3024 page notes that the exact activation temperature must be confirmed for the selected configuration. That confirmation should come from the bulb rating marked on the sprinkler or from the dimensional drawing, not from a general assumption about the product family. A sprinkler intended for the same nominal application may be supplied with a different bulb rating depending on the ambient ceiling temperature of the protected space. The colour and the stamped rating are the two verifiable points, and both should match the specification before installation.

Inlet Assembly: Torque and the Sealing Interface

M30 × 1.5 is a metric fine parallel thread. The sealing is not achieved on the thread flanks; the joint depends on the mating seat, gasket or O-ring at the connection. Published installation torque data for sprinkler heads in the 1/2-inch and 3/4-inch NPT range commonly falls between approximately 9.5 and 27 Nm, depending on the inlet size and the wrench specification[reference:3][reference:4]. A 1/2-inch NPT sprinkler joint is typically tightened to 9.5–19 Nm, and a 3/4-inch joint to 13.4–26.8 Nm[reference:5]. Those figures apply to NPT threaded sprinklers, where the tapered thread contributes to the seal; a parallel M30 × 1.5 connection seals differently, and the torque should come from the fitting or equipment manufacturer rather than from an NPT table.

The M10 × 1–12.5 gauge connection is a separate interface on the same body. It is a metric fine parallel thread as well, and the gauge specified for the finished equipment should match both the thread and the sealing form. A gauge intended for an M10 × 1 port will not correctly engage an M10 × 1.5 port, and the two should not be adapted with a bushing in a way that changes the pressure boundary. The dimensional drawing should identify the inlet, the gauge port and the outlet or discharge interface separately to prevent cross-connection during assembly.

Check Valve Function in the Sprinkler Assembly

The integrated check valve listed for the Model 3024 is a one-way flow element, not a pressure-relief device. In fire sprinkler piping, a check valve is used to retain fluid and pressure downstream of its position during periods such as supply-side system maintenance, so that the downstream section remains charged and isolated from the source being worked on. It also prevents reverse flow through the component under normal operating conditions.

Because the Model 3024 is supplied with a check valve but without a separate safety device, the two functions should not be conflated. The check valve addresses flow direction and downstream retention; it does not vent overpressure. Where the finished assembly requires pressure relief, that function must be provided elsewhere in the system or by the equipment design, and the relief setting should be checked against the maximum allowable working pressure of the assembly. A check valve that holds pressure in the downstream section can also make that section more difficult to drain during maintenance if the isolation points are not arranged correctly, so the system designer should account for the check valve’s position in the drain-down plan.

What CE and TÜV Documentation Covers

Sprinklers fall under the Construction Products Regulation, and EN 12259-1 is the harmonised standard for sprinkler components. CE marking for a product covered by that standard involves a notified body; it is not a self-declaration that can be issued on the basis of an internal test report alone[reference:7]. A TÜV document may be a test report, a product certificate, or a factory production control certificate, and the three are not equivalent. A test report confirms that a sample met specified test criteria; a product certificate confirms ongoing conformity; a factory production control certificate addresses the manufacturing system.

For procurement review, the relevant questions are which notified body issued the document, what the scope statement covers, whether the certificate is tied to the specific Model 3024 configuration, and whether it remains valid for the production period in question. A CE declaration of performance and a TÜV test report should be read as separate pieces of evidence, not as interchangeable confirmations of the same thing.

Product Applications

The Fire Sprinkler is intended for evaluation as a component in compatible fire protection or fire suppression equipment. Its actual application depends on the system design, extinguishing medium, operating pressure, thermal activation requirements, connection dimensions, and applicable technical standards.

Quality Assurance and Compliance

We can provide this documents:

· Product technical drawings and dimensional specifications.

· Applicable material and manufacturing information.

· Inspection and testing records.

· CE declarations or certificates applicable to the specific product.

· TÜV certificates or test reports.

· Installation, compatibility, and maintenance documentation.

Why Choose ANKE?

Ningbo Kaituo Valve Co., Ltd., under the ANKE brand, manufactures and supplies fire extinguisher valves and related components for B2B customers. The company provides a point of contact for product specification review, technical coordination, and sourcing inquiries.

When evaluating the Fire Sprinkler, customers can work with the supplier to confirm connection requirements, identify the correct product configuration, review applicable documentation, and determine whether the component is suitable for the intended equipment.

Frequently Asked Questions

What is the inlet thread of the 3024 Fire Sprinkler?

The supplied product specification identifies the inlet thread as M30 × 1.5. Buyers should confirm the mating connection and sealing requirements before installation.

Does the Model 3024 have a check valve?

Yes. The supplied specification lists an integrated check valve.

Does the Model 3024 include a safety device?

The supplied specification indicates “No” for the safety device. Buyers should confirm the complete assembly's pressure-relief and safety requirements before selecting the product.

Is the Model 3024 CE and TÜV certified?

Glass Bulb Fire Sprinkler with Check ValveGlass Bulb Fire Sprinkler with Check Valve

Can the Model 3024 be customized for OEM projects?

OEM and ODM requirements can be discussed with ANKE. Customization feasibility, technical compatibility, and any effect on product approvals must be evaluated before implementation.

How can I request a quotation for the Model 3024?

Contact Ningbo Kaituo Valve Co., Ltd. with your required quantity, intended application, connection specifications, destination market, and certification requirements. Providing technical drawings or equipment details can help the supplier assess compatibility and prepare a more relevant quotation.

What activation temperature should be specified for a given installation?

The activation temperature is selected against the maximum ambient ceiling temperature of the protected space and the applicable design standard. Glass-bulb ratings from 57 °C to 141 °C are available, with 68 °C being the most common for ordinary-hazard spaces. The exact rating for the Model 3024 configuration should be confirmed from the bulb marking or drawing, not assumed from the product family.

Is the integrated check valve a substitute for a pressure-relief device?

No. The check valve controls flow direction and retains downstream pressure; it does not vent overpressure. Where the assembly requires pressure relief, that function must be provided separately and set against the assembly’s maximum allowable working pressure.

Does a TÜV test report confirm CE marking for this sprinkler?

Not by itself. CE marking for sprinklers under the Construction Products Regulation involves a notified body, and a test report is one component of the evidence, not a substitute for the notified body’s involvement. The report should be read together with the declaration of performance and the certificate scope, not in place of them.

 

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    Factory: Huilong Village, Huangjiabu Town, Yuyao City, Zhejiang Province, China

    Branch Office: Hengye Building 509, No.158 Tai'an Middle Road, Yinzhou District, Ningbo, Zhejiang, China

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