3 inch Gate Valve

Description

Gate valve 3 inch is distinguished by the size to the gate valve, 3 inch gate valve with DN to say DN80.

What is a 3 Inch Gate Valve?

ZECO 3 inch gate valve is mainly used for fully open or fully closed switching valves. They are usually not used for throttling purposes, but for slurries, viscous fluids, etc. Gate valves feature a removable wedge that moves with the stem nut. The wedge moves perpendicular to the direction of flow. Gate valves usually have a minimum pressure drop when fully open, provide tight shut-off when fully closed, and remain relatively free of contamination buildup.

Features of 3 Inch Gate Valves

• The wedge of ZECO 3 inch gate valve are fully guided to the seats. For this purpose, ZECO 3inch gate valve is equipped with integral cast gate, which is wedged at a certain angle to the vertical center line, and its function is to close more and more tightly during the closing process. The gate is cast as a whole, machined and automatically surfacing, and has a ring groove on the surface for a better fit on the seat surface;
• ZECO won’t because of urgent orders, and ignore the production technological process, ZECO each production line workers, any steps based on by technology department common processes for production and technology department, at the same time, the engineer of the quality department is on the basis of international standards for production of every step for testing to ensure that products are qualified;
• The seat ring of ZECO 3 inch gate valve is forged and designed to reduce wear during switching and to prevent wear of the valve body and seal rings during flow;
• After welding and required heat treatment, the seat ring of ZECO 3 inch gate valve shall be thoroughly cleaned by CNC machine and inspected by inspectors before assembly is allowed.

Dimensions & Weight of Gate Valve 3 inch

Pressure Rating	Bore	Face to Face Dimension(in mm)			Weight
	(in mm)	RF	BW	RTJ	kg
CLASS 150	76	203	283	216	40
CLASS 300	76	283	283	298	52
CLASS 600	76	356	356	359	85
CLASS 900	72	381	381	384	165
CLASS 1500	69	470	470	473	182
CLASS 2500	57	578	578	584	201

Material of 3 Inch Gate Valve:

No	Part	Material
1	Body	ASTM A536
2	Seat Ring	ASTM B62
3	Wedge	ASTM A536+B62
4	Stem	ASTM B62
5	Bonnet Gasket	NBR
6	Bonnet Bolt	ASTM A193 B8
7	Bonnet Nut	ASTM A194 8
8	Bonnet	ASTM A536
9	Backseat	ASTM B62
10	Stem Packing	EPDM
11	Handwheel	KTH330-08