JONLOO gate valves are reliable, offering a tight shut-off and low pressure drop. The design covers a wide range of requirements to meet any customer need from general to severe service conditions. JONLOO gate valves are in compliance with the latest edition of API600 and ASME B16.34.
Size: NPS 2"~48"(DN50~DN1200)
Pressure Rating: ASME Class150~2500(PN16~PN420)
Body material:Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel
End connection:RF, BW, RTJ
Operation:Manual, Pneumatic, Electric, Hydraulic
Design and Manufacture: Cast steel gate valve to API 600(ISO 10434) or API 6D;
Cast stainless steel gate valve to API 603 or API 600.
End flange dimension: ASME B16.5 (for NPS≤24) : ASME B 16.47 series B,API605 or ASME B 16.47 series A,MSS SP-44(for NPS>24).
BW End dimension: ASME B 16.25
Face to face and end to end: ASME B 16.10.
Inspection and Test: API 598, API 600 or API 6D
Pressure-temperature rating: ASME B 16.34
Bolted bonnet, screw-in bonnet or Pressure seal bonnet types
Outside screw and yoke
Rising stem or non-rising stem, non-rising handwheel
Flexible wedge or solid wedge, fully guided
Renewable seat ring and stem backseat
Flange end : raised face or ring type joint
Main Part & Materials
|Suitable Medium||W.O.G etc.||HNO3, CH3OOH etc.||Sea Water etc.|
|Suitable Temperature||-29~425 °C||-46~340 °C||-46~340 °C||-196~427 °C||-196~427 °C||-196~427 °C||-196~427 °C||-29~220 °C|
Why Choose JONLOO Valves?
Our gate valves are designed for use in demanding oil & gas industry as well as water applications.
Our gate valves are known for being affordable and dependable because we know how important it is for you to keep your facilities and operations running smoothly. We offer the unbeatable combination of low prices, fast delivery, and strong warranties on all of our products.
How to select JONLOO valve for your pipelines?
Valve design and selection of materials are key factors when determining the different oil and gas media applications of valves. The two main things that affect the valve material selection are the strength of the valve and the corrosive media going through the valve.
Strength in a valve is its ability to withstand the internal stresses generated by containing and controlling the fluid under pressure. Strength can be measured in several ways, but the most common measure is by quantifying the metal's tensile strength. Higher pressures are reserved for the stronger steel and high alloy valves as lower pressures can use lower tensile strengths such as cast iron.
The second major consideration in choosing a valve material is its corrosion resistance. Corrosion is the breakdown of a metal due to attack by various chemical reactions. The dangers of corrosion damage are particularly high in the chemical manufacturing industry where the issues of strong chemicals, high pressures and high temperatures cross paths. The harsh acids and other compounds can sometimes eat through metals such as iron and steel in a matter of days or even hours. In valve materials, basic exterior rusting of the valve is usually secondary to the corrosion going on within the valve due to the unique characteristics of the fluid contained inside it. In addition to the fluid going through the valve, the temperature of the flow media and the operating environment are other key factors to be considered when determining materials as it relates to corrosion.