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Zhejiang Dunyun Industrial Co.,Ltd
Address: No. 58th Yanbei East Road, Diankou Town, Zhuji, Zhejiang Province
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Brass Screw Fittings For Plumbing Pipe

Brass Double Male Nipple

Product Name: Brass Nipple
Type: Straight
Material: Brass
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Product Name: Brass Nipple

Type: Straight

Material: Brass

Connection: Male

Technics: Forged

Size: 1/2''; 3/4''; 1''; 1-1/4''; 1-1/2''; 2''

Surface Treatment: Natural; Nickel Plated


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Additional information:

Certificate: ISO9001: 2015; CE; ISO 14001 

Warranty time: 5 years

Offer sample: Available

MOQ: 1000pcs

OEM: Acceptable

FOB Price(Ningbo): USD 0.60 - USD 3.10

Delivery time: in 20 days after down payment

Port: Ningbo Port or Shanghai Port

Packing: ploy bag+inner box+export carton+4 packing belts

Offer samples: Yes





Valves stop (or regulate) the flow of liquids or gases. They are categorized by application, such as isolation, throttling, and non-return.

Isolation valves are used to temporarily disconnect part of a piping system, to allow maintenance or repair, for example. Isolation valves are typically left in either a fully open or fully closed position. A given isolation valve may be in place for many years without being operated, but must be designed to be readily operable whenever needed, including emergency use.

Throttling valves are used to control the amount or pressure of a fluid allowed to pass through, and are designed to withstand the stress and wear caused by this type of operation. Because they may wear out in this usage, they are often installed alongside isolation valves which can temporarily disconnect a failing throttling valve from the rest of the system, so it can be refurbished or replaced.

Non-return or check valves allow free flow of a fluid in one direction, but prevent its flow in a reverse direction. They are often seen in drainage or sewage systems, but may also be used in pressurized systems.

Valves are available in a number of types, based on design and purpose:

  • Gate, plug, or ball valves – Isolation

  • Globe valve – Throttling

  • Needle valve – Throttling, usually with high precision but low flow

  • Butterfly or diaphragm valves – Isolation and throttling

  • Check valve – Preventing reverse flow (non-return)


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