line blind valve

The valve is a reliable isolation equipment in gas medium pipeline. It is suitable for gas, gas and powder transmission pipeline in metallurgy, chemical industry, machinery, energy and municipal engineering systems. The chain wheel type goggle valve manual driving device is mainly used on the manual goggle valve requiring long-distance operation, and is assembled and connected with other parts of the valve through the valve driving device; By pulling the hand zipper strip, the remote manual operation of the valve is realized, so that the use of the valve is more flexible and is not limited by power and air source.

1.Simplified design, ruggedly and dependably built, easy to operate and economical to maintain – are the principal advantages of the zero leakage blind valve. The blind valve will render an absolute tight shut-off in blast furnace, basic oxygen, open hearth or other gas mains. The blind valve is designed for vertical operation in a horizontal main – with rollers and other daptations provided for horizontal operation in a vertical main. 2.When in the closed position, a definite separation on each side of the goggle plate is assured – to prevent leakage of gas from one side of the blind plate to the other. Should leakage occur between the blind plate and the clamping or stationary frames (due to improper clamping, for example), leakage will be admitted to the atmosphere and not around the blin plate to the depressurized side of the valve.

1.With its superior performance, the pneumatic sector blind valve provides a safe and reliable isolation device for the automatic control of toxic, hazardous and flammable gas pipelines in metallurgy, chemical, environmental protection and other industries. 2.The pneumatic blind valve can be controlled remotely by a single unit, or by multiple units connected to the network, and can also be operated manually by the valve itself under abnormal conditions.

1.The line blind valve is permanently installed in a pipeline and is quickly interchanged between the open and closed positions. 2.The blind valve typically has a locking mechanism that loosens or tightens the blind, and a safety feature which prevents its actuation while in each position. 3.By turning the handwheel, the flange is freed and operators can turn it to their desired position, and the handwheel can be turned back to lock the flange in place. It provides an easier means of changing the blind valve and saves operators valuable time when enacting positive isolation in a system.

▷Stainless steel ring provided in valve body to prevent dust from entering expansion joint ▷Simplified design permits one man operation ▷Installation in a horizontal or vertical main ▷Goggle plate counterbalanced for ease of operation ▷Self-supporting – sufficient column strength is contained within valve structure, eliminating the need for additional support from ground ▷Self-contained alloy expansion join – face-to-face dimension never changes ▷Shipped completely assembled – ready for installation