DN15-DN50 1/2 "-2" Standard Normal Temperature Manual Valve Ball Valve

DN15-DN50 (1/2"-2") standard room-temperature manual ball valves, with their "compact yet sophisticated" design, serve as the "cornerstone product" for small and medium-sized fluid control applications. While not designed for extreme conditions, they excel in routine scenarios by being "easy to use, durable, and cost-effective," making them an ideal choice for pipeline systems in residential, commercial, and industrial settings.

● Connection Thread：Internal thread
● Valve Core Type：Floating ball
● Handle Type：Straight handle
● Body Material：Brass/Stainless steel
● Core Material：Brass/Stainless steel
● Handle Material：Galvanized cast iron (economical type), Aluminum alloy (lightweight), ABS engineering plastic (insulation/anti - slip)
● Medium Type：Water (cold water/hot water), Compressed air, Hydraulic oil (non - strongly corrosive), Low - pressure steam (≤1.6MPa), Gas (natural gas/LPG, FKM seal required)
● OEM Service：Accepted
● Delivery Terms：FOB, CFR, CIF, EXW
● Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

ball valve

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Product Details

Product Formation

"DN15-DN50 (1/2""-2"") Standard Normal Temperature Manual Ball Valve" is a general-purpose fluid control component designed for small and medium-diameter pipeline systems. It features "manual operation, normal temperature applicability, and standard compatibility" as its core characteristics. Leveraging the advantages of the ball valve structure, such as low flow resistance, quick opening and closing, and reliable sealing, it achieves precise on-off control of normal-temperature fluids like water, gas, and oil. In its name, "DN15-DN50" (metric diameter) corresponds exactly to "1/2""-2"" (imperial diameter) (for example, DN15 = 1/2"" = 15mm, DN50 = 2"" = 50mm). It covers the needs of small and medium-sized pipelines in household, commercial, and industrial fields, and is a basic control component with "low cost and high reliability" in fluid systems.

KEY WORDS： Standard Manual Ball Valve，Manual Ball Valve，Standard Type Manual Ball Valve for Normal Temperature， 1/2"-2" Manual Ball Valve，Manual Ball Valve 1/2"-2" Normal Temperature Standard ，China, manufacturers, suppliers, wholesale, factory.

Other Classifed Products：

Fire Hose Categories, Fire Sprinkler System, Fire Protection Valve , Fire Hose Reel&Cabinet , Fire Foam Equipment，Fire Nozzle and Fire Monitor , Fire Hydrant , UL/FM Fire Fighting Equipment , Brass Valve Categories , Fire Extinguisher Series .

Product Features

Wide range of calibers: covering metric DN15 (1/2"), DN20 (3/4"), DN25 (1"), DN32 (1-1/4"), DN40 (1-1/2"), DN50 (2"), corresponding to imperial 1/2"-2". It is suitable for small and medium-caliber pipeline systems such as domestic water supply, heating, ventilation and air conditioning, industrial small pipelines, fire-fighting terminal equipment, etc., to meet diversified connection needs.
Good standard compatibility: strictly designed in accordance with national standards (such as GB/T 12237), American standards (ASME B16.34) and other general standards. The interface forms (internal thread, external thread, socket welding, etc.) are standardized, which have strong interchangeability with mainstream pipeline accessories and are easy to install.
Pure mechanical drive: The valve is opened or closed (fully open/fully closed) by rotating the handle 90°, with moderate operating force (small and medium-sized valves can be operated with one hand). No external power sources such as electricity or pneumatics are required, making it suitable for scenarios without power sources (e.g., outdoor use, emergency equipment, retrofitting old systems).
Clear status indication: The handle is directly connected to the valve stem. When open, the handle is parallel to the pipeline; when closed, it is perpendicular, making the operating status immediately visible and preventing misoperation. Some models feature a limit structure to prevent excessive force from damaging the valve core.

Wide temperature range applicability: Specifically designed for "room temperature" conditions (typically applicable for medium temperatures ranging from -20°C to 120°C, with adjustments based on material). Within this range, the thermal expansion coefficients of materials (such as brass, 304 stainless steel valve bodies, and EPDM/PTFE seals) remain stable, with no significant degradation in sealing performance or mechanical strength.
Excellent medium compatibility: Capable of conveying water, air, oils (non-corrosive), low-pressure steam (≤1.6MPa), and other room-temperature fluids, avoiding material failure risks under high temperature and pressure. Particularly suitable for conventional applications such as domestic water supply, HVAC circulation, and fire sprinkler systems.
Minimal flow resistance: Featuring a "full bore" or "reduced bore" design (small to medium sizes are mostly full bore), the valve body has a smooth, obstruction-free inner cavity, resulting in low pressure loss during fluid passage (approximately 1/10 of that of a gate valve of the same size), delivering significant energy-saving effects.
Quick opening and closing: Only a 90° rotation is needed to complete the action from fully open to fully closed, ensuring fast response times. This makes it ideal for scenarios requiring rapid fluid shut-off (such as emergency water cutoff or equipment maintenance isolation).
Reliable sealing: At normal temperatures, soft seals (EPDM rubber, PTFE polytetrafluoroethylene) are commonly used, with tightly fitted sealing surfaces achieving a leakage class of up to VI (bubble-tight). Some industrial-grade models are equipped with hard seals (metal + ceramic), balancing wear resistance with long-term sealing performance.
Small volume and light weight: Compared with gate valves and globe valves of the same caliber, ball valves have a simpler structure (only including valve body, valve core, valve stem, seals, and handle). The overall size is reduced by 30% to 50%, saving installation space, and is especially suitable for areas with dense pipelines (such as equipment rooms and small machine rooms).
Low maintenance cost: There are few parts (usually less than 10). Disassembly only requires loosening the connecting nut to replace the seals or valve core; manual operation has no complex transmission components (such as gears, motors), almost no mechanical wear, and a long service life.

Product Parameter

Item	Parameter Details/Description
Connection Thread	Internal thread
Valve Core Type	Floating ball
Handle Type	Straight handle
Nominal Pressure (PN)	PN16 (commonly used, corresponding to a maximum working pressure of 1.6MPa)、PN25 (high - pressure scenario, 2.5MPa)
Test Pressure	Shell test pressure: 1.5×PN (e.g., 2.4MPa when PN16)
Test Pressure	Seal test pressure: 1.1×PN (e.g., 1.76MPa when PN16)
Body Material	Brass/Stainless steel
Core Material	Brass/Stainless steel
Handle Material	Galvanized cast iron (economical type), Aluminum alloy (lightweight), ABS engineering plastic (insulation/anti - slip)
Medium Type	Water (cold water/hot water), Compressed air, Hydraulic oil (non - strongly corrosive), Low - pressure steam (≤1.6MPa), Gas (natural gas/LPG, FKM seal required)
Medium Temperature	Normal temperature: - 20℃~120℃ (EPDM seal), - 40℃~150℃ (PTFE seal)
Medium Temperature	(Note: "Normal temperature" refers to 0℃~80℃ by default, and derating is required for extreme temperatures)
Working Pressure	≤PN16 (1.6MPa), high - pressure scenarios require PN25 (2.5MPa)
Prohibited Media	Strong acid (sulfuric acid/hydrochloric acid), Strong alkali (sodium hydroxide), Particulate impurities (sand/welding slag), High - temperature molten substances

FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

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A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
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Please do not hesitate to contact us for further information!