Fully Welded Ball Valve

Waits is a large valve manufacturer, and fully welded ball valve is one of the products we can provide. Since the valve seat of this product is composed of carbonized Teflon sealing ring and disc spring, it has strong adaptability to changes in pressure and temperature and will not leak within the marked pressure and temperature range. In gas transmission projects in the Middle East and heating projects in Northern Europe, fully welded ball valves are widely used.

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Product Description

Fully welded ball valve is a commonly used ball valve product. It can use oil pressure or pneumatic force to control the rotation of the ball to open and close and adjust the flow rate. In terms of performance, it is corrosion-resistant, reliable in sealing, easy to open and close, and has a wide range of flow regulation. Therefore, it is widely used in the fields of petroleum, chemical industry, natural gas, papermaking, water treatment and electricity.
The fully welded ball valve produced by Waits has excellent performance, compact structure, easy operation and long service life, all of which have passed our strict quality inspection system. During use, you can select the model according to factors such as media and operating conditions, and maintain the operating status of the ball valve through correct installation and operation, as well as subsequent regular inspection and maintenance. If you encounter problems, or want to know more about the product or the latest factory price, you can contact us at any time for communication and service support.

Implementation Standards

Design standards	API 6D ISO14313, DIN 3357-1
Flange standards	ASME B16.25, EN 12627
Connection methods	BW
Testing and acceptance	API598, API6D, EN 12266 -1
Structural length	ASME B16.10, DIN3202,
Pressure and temperature ratings	ASME B16.34、
Fireproof test	API607, API6FA
Low leakage standards	ISO 15848-1, API 622
Anti-corrosion design	NACE MR 0103, NACE MR 0175

Application

Size	NPS1/2～NPS56 DN15～DN1400
Pressure range	150LB～2500LB、PN6～PN420
Temperature range	；-40°C ~ +600°C
Application range	Tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electricity, shipbuilding, metallurgy, energy system, etc.
Drive mode	Turbine, pneumatic, electric
Valve body/valve bonnet	ASTM A105/ LF2, ASTM A182 F304/ F316/ F304L/ F316L
Valve core	ANSI304, A105/ENP
Valve stem	F6A F304 F316 F51 F53 Monel K500
Valve stem nut	Copper Alloy
Packing	PTFE, PPL, RPTFE, Devlon, TEFLON

Performance Features

The fully welded ball valve adopts a fully welded valve body structure and a proprietary valve seat (multiple sealing structure). Both designs help avoid leakage. The valve stem is designed to prevent blowout. If improper operation is encountered, the valve stem can be prevented from shooting out of the valve body.
The valve is equipped with fireproof and anti-static devices to effectively prevent fire. Grease injection valves are provided at the valve seat seal and the valve stem seal. When the sealing surface is damaged and causes leakage, sealing grease can be injected for emergency repair. Vent valves and drain valves are provided at the upper and lower parts of the valve body cavity to ensure safety, reliability and convenience.
Direct buried valves can be provided. Operators do not need to enter the well. They can use a T-handle on the well, which is convenient and safe. A relief valve structure can be set for easy management and safety.
About the valve seat piston effect: 1. Both upstream and downstream are single piston effect valve seats, that is, DBB function; 2. Both upstream and downstream are double piston effect valve seats, that is, DIB-1 function; 3. The upstream is a single piston effect valve seat, and the downstream is a double piston effect valve seat, that is, DIB-2 function.

Fully Welded Ball Valve