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Forged Brass Key Operated Lock Ball Valve DN15‑DN50, Anti‑Tamper Water Ball Valve for Household Control

Forged Brass Key Operated Lock Ball Valve DN15‑DN50, Anti‑Tamper Water Ball Valve for Household Control

This forged brass lockable ball valve adopts high‑quality forged brass body with female thread connection. It can only be opened and closed with dedicated key to avoid unauthorized operation for household pipeline management. Ball‑type structure provides straight‑through flow channel, low flow resistance and easy operation with excellent sealing performance. Pressure rating PN16, suitable for cold and hot water. Widely used in residential property, heating system, tap‑water pipeline, household and municipal plumbing projects. Available in DN15‑DN50.

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Product Description

Technical Specifications
- Pressure Rating: Rated for system pressures up to 16 bar (PN16)
- Fluid Compatibility: Optimized for clean water and mild, non-aggressive fluids
- Thermal Range: Suitable for continuous operation between 0°C and 100°C
- Thread Fitting: Manufactured to ISO 228 / GB/T 7307 connection standards
- Control Mechanism: Operated via manual lever or optional magnetic lock feature
Product Advantages
- Heavy-Duty Construction: Forged brass body delivers superior structural integrity and extended resistance against wear.
- Tamper-Resistant Security: Integrated key-lock mechanism safeguards against unapproved adjustments and accidental operation.
- Unrestricted Flow: Full-port interior design minimizes friction loss and pressure drops, enabling seamless quarter-turn shutoff.
- Streamlined Assembly: Precision internal threading ensures tight seals and quick, hassle-free pipe integration.
- Versatile Sizing: Available in sizes ranging from DN15 to DN50 to fit standard HVAC, municipal, and residential supply lines.
DN

Thread

Length L (mm)

Height H (mm)

Weight (kg)

15

1/2"

60

45

0.15

20

3/4"

65

50

0.22

25

1"

75

60

0.32

32

1‑1/4"

85

65

0.45

40

1‑1/2"

95

70

0.60

50

2"

110

80

0.85

DN	Thread	Length L (mm)	Height H (mm)	Weight (kg)
15	1/2"	60	45	0.15
20	3/4"	65	50	0.22
25	1"	75	60	0.32
32	1‑1/4"	85	65	0.45
40	1‑1/2"	95	70	0.60
50	2"	110	80	0.85

Precision Valve Manufacturing

Professional Valve Manufacturer | Integrated Manufacturing

Raw Material Inspection

Qualified brass are selected. Alloy composition is checked by spectrometer to guarantee pressure‑resistance and dezincification‑resistance performance.

Hot Forging Die‑Casting for Blanks

Heated brass material is formed into valve body blanks by hot forging or die‑casting. Remove flash and burrs to obtain dense valve blanks.

CNC Machining

Our CNC machining equipment provides precise and consistent processing of valve components. Critical dimensions, threads and sealing surfaces are strictly controlled to ensure accurate assembly and reliable sealing performance.

Surface Treatment

Brass Valve will Deburring and polishing. Passivation or nickel/chrome plating is applied to improve anti‑corrosion property and avoid copper oxidation.

Assembly &Pressure Testing

Every valve undergoes strict pressure testing before shipment. Body and seat tests are performed according to applicable standards and customer specifications to verify pressure resistance and sealing reliability.

Quality Inspection

Our quality control team conducts comprehensive inspections throughout the production process. Finished valves are checked for dimensions, appearance, materials, pressure performance and overall quality before final approval and shipment.

What is the working pressure of this brass ball valve?

Rated pressure is PN16, suitable for conventional tap water, heating and fire‑fighting water pipelines.

What thread standard does this valve adopt?

It is BSPP NPT internal thread According to your request , commonly used for plumbing projects. Custom thread requirements can be discussed.

What medium can this brass ball valve handle?

Yes, it has WRAS & CE certification, qualified for potable‑water pipeline application

Can I get certificates for tender submission?

Yes, certification documents can be provided upon request for project bidding

What sizes are available?

Complete size range DN15‑DN50 to meet different project demands.