A protective tooling for installing anti-fugitive fillers

Abstract

Disclosed is a protective tooling for installing anti-dissipation filler. The protective tooling for installing the anti-dissipation filler comprises a soft bush, the soft bush is lined inside a valvecover hole, the inner diameter of the soft bush is smaller than that of the valve cover hole, the soft bush is provided with a grasping part which is located outside the valve cover hole, the grasping part facilitates the axial disconnection of the soft bush from the valve cover hole, a valve rod is loaded into the soft bush, and the soft bush is provided with a parting face, and the soft bush isdetached from the valve rod through the parting face after the soft bush is detached from the from the valve cover hole in the axial direction. The protective tooling for installing the anti-dissipation filler has the beneficial effects that the soft bush is adopted, the inner diameter of the soft bush is less than the inner diameter of valve cover hole, and when the valve rod is installed, zerocontact between the valve rod and the valve cover hole can be ensured, so that the valve rod is prevented from being scratching to ensure the sealing; the soft bush can be conveniently removed from the valve rod after installing on the valve rod, thus reducing the opening and closing torque of the valve rod; and after removing the soft liner, the valve rod can be applied to severe working conditions such as high temperature and high pressure, and the range of application is wider.

Description

Technical field [0001] The invention relates to a protective tool for installing a valve. Background technique [0002] At present, with the continuous improvement of the country's environmental protection requirements, more and more valve users have put forward requirements for the fugitive leakage of the valve. The anti-fugitive packing is just a kind of sealing that can reduce the fugitive leakage of the valve stem. technology. [0003] Ordinary packing is installed between the valve stem and the stuffing box one by one or in groups after the valve stem is installed. However, in order to make the packing fit closely, reduce the gap and improve the sealing performance of the packing, Enhance anti-emission performance; when installing anti-emission packing, install the packing into the stuffing box first, and then use the inner hole of the packing as a guide to position, and screw the valve stem into the packing from the lower part of the bonnet, so that the valve during i...

AI Technical Summary

Problems solved by technology

[0003] Ordinary packing is installed between the valve stem and the stuffing box one by one or in groups after the valve stem is installed. However, in order to make the packing fit closely, reduce the gap and improve the sealing performance of the packing, Enhance anti-emission performance; when installing anti-emission packing, install the packing into the stuffing box first, and then use the inner hole of the packing as a guide to position, and screw the valve stem into the packing from the lower part of the bonnet, so that the valve during installation The stem rubs against the inner hole of the bonnet and is easily pulled by the inner hole of the bonnet. Once the stem is pulled, the seal will fail and leakage will occur

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