Pressure Seal Globe Valve

Pressure Seal Valves are intended for high pressure and high temperature applications for all types of fluids, except where severe coking may occur. Because of their design and materials of construction, pressure seal valves are an excellent choice for nuclear steam generating stations, industrial/chemical plants, and thermal power plants. Pressure Seal Valves offer efficiency in flow passage and sealing, weight saving, ease of installation and simplicity in maintenance.

What is Pressure Seal Globe Valve?

Pressure Seal valves are designed for high pressure, high temperature applications such as Steam-Generation Stations, Industrial/Chemical Processing Plants, Thermal Power Generating Plants, and other processing facilities throughout the world.

Product Standards of Pressure Seal Globe Valve

Specifications	Details
Design Standard	API 623, BS 1873, MSS SP-144
Pressure/Temperature Chart	ASME B16.34
Face to face Dimension	ASME B16.10
Testing Standard	API 598 / BS EN 12266, Part-1
Flange Details	ASME B16.5 UP TO 24″DIN / BS / IS / JIS
Butt-Weld End Details	ASME B16.25
Size Range	2″ – 20″ (DN50 – DN500)
ASME Class	Class 900 to 2500
Materials	A105 / LF2 / LF3 / F316 / F304 /F316L / F51 / F55 / F6a / WCB / LCB / LCC / CF8M / CF8 / CF3M / 4A / 6A / Inconel
Trims	F6a / F316 / F304 / F316L / F51 / F55 / Inconel / Stellied or hardfaced
Ends	Flange ends, Butt-weld End
Operation	Manual, Pneumatic, Electric

Features and Benefits of Pressure Seal Globe Valve

ZECO globe valve’s top and bottom-guided disc assure stem operation without side thrust caused by high pressure flow. The non-rotating stem results in lower friction of all moving parts and longer stem packing life. All these results in smooth, easy operation and tight shutoff under extreme pressures.

• ZECO proven pressure seal design to ASME B16.34.
• Live-loaded pressure seal bonnet bolting on NPS 6 and larger as a standard.
• Body – superior strength forgings / high quality castings.
• Body guided disc eliminates side thrust and provides longer disc, seat, and body life.
• Impactor handwheel for tight shutoff.
• ZECO stem seal offers a tight seal with little to no maintenance over long periods of time.
• Non-rotating stem requires lower operating torque.
• The body and disc are CoCr alloy hardfaced on seat contact and disc guiding surfaces, which provides maximum resistance to erosion and wear.
• Optional live-loading of packing extends low emission service life, especially in service with large pressure/temperature transients or frequent cycling.
• Other sizes and pressure classes are available. Contact the company for specifications.

Applications of Pressure Seal Globe Valve

• Thermal & Cogeneration Power Plant
• Nuclear Power Plants
• Chemical, Petrochemical & Other Industrial Processes

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