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Double Union Gate Valve

Double union gate valves feature a double union design that allows for easy installation and maintenance without the need for special tools or equipment. The union connections enable quick disassembly and reassembly of the valve body, facilitating expedited maintenance and repair procedures. Double union gate valves are widely employed in plumbing systems, HVAC systems, and irrigation systems, where ease of maintenance and serviceability are essential for minimizing downtime and ensuring system reliability.

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Design Advantages

Dual Sealing: Double union design enhances sealing performance, minimizing the risk of leaks and ensuring system integrity.

Flexibility: Allows for easy disassembly and reassembly, facilitating maintenance and repairs without disrupting system operation.

Corrosion Resistance: Resistant to corrosion, making it suitable for use in harsh environments and corrosive media.

Precise Control: Provides precise control over fluid flow, enabling efficient system operation and optimization.

Wide Range of Sizes: Available in various sizes to accommodate different flow rates and system requirements.

Long Service Life: Constructed with durable materials and a robust design, ensuring a long service life with minimal maintenance.

Technical Parameters

Size	DN15-DN2000, 1/2''-80''
Pressure	PN10-PN420, Class150-Class2500
Temperature	-200℃ to 650℃
Connection type	Flange, Thread, Socket weld, Butt weld
Operation mode	Manual, Pneumatic, Electric, Hydraulic, Gear transmission

Materials

Valve Body	Forged	A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, etc
	Cast	WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc
Valve Stem		F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500, N08020, Inconel625, Incoloy825，etc
Valve Disc		A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500，Incoloy825，WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc
Seat Sealing		SS,BR,CU,AS,CS,AL,PTFE,NBR,FKM,AI203,etc

Design Standards

Valve Body	API 600, API 602, ASME B16.34, DIN 3352, BS 5163, GOST 5762, JIS B2073, GB/T 12233, etc.
Flange	ANSI B16.34, EN 1982, JIS B2210, GB/T 17241, ASME B16.42, GOST 12815, DIN 3202-1, etc.
Connection	ANSI B16.10, ASME B16.25, JIS B2212, GOST 33259, DIN 3202, etc.
Test Standards	API 598, ISO 5208, BS EN 12266, ASME B16.104, GOST 9544-2015, JIS B2003, DIN 3230, etc.

The careful selection of design standards for Double Union Gate Valve is crucial to ensure adherence to international quality and safety benchmarks. By complying with these standards, Double Union Gate Valve offer outstanding performance, longevity, and suitability across various installations and applications.

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