10 safety problems to be noticed when installing rubber pneumatic butterfly valve?
When installing the pneumatic butterfly valve, we still have a lot to pay attention to. If we don't pay more attention, it will definitely constitute some safety accidents. When installing the pneumatic butterfly valve of Zhenxin water pump, do we have anything to pay attention to? Xizhen Pneumatic Butterfly Valve Co., Ltd. has been engaged in rubber pneumatic butterfly valves for many years, and has rich experience in this field, so we have sorted out 10 issues to pay attention to.
1. The damping elements shall be symmetrically arranged according to the central axis of the pump unit. The plane layout of the rubber damping pad can be arranged clockwise or counterclockwise.
2. When six supporting points are used for the vibration damping elements of the unit, four of them are arranged at the four corners of the inertia block or the section steel frame, and the other two should be set on the long side line, and their positions should be adjusted so that the compression deformation of the vibration damping elements is as different as possible.
3. When rubber shock pad or damping spring shock absorber is installed for vibration reduction of horizontal pump unit, under normal circumstances, the rubber shock pad and damping spring shock absorber need not be bonded or fixed with the air, or with the inert block or steel frame.
4. When rubber shock absorber is used for vibration reduction installation of vertical water pump unit, it is better to set steel frame under the base of water pump unit and adopt anchoring installation; The section steel base and rubber shock absorber shall be fixed with bolts (with spring washers). Anchor bolts are set in the air or floor, and the rubber shock absorber is fixed in the air or floor after passing the anchor bolts.
5. The edge line of the rubber damping pad shall not exceed the edge line of the inert block; The bearing area of the section steel frame shall not be less than that of the top of the damping element.
6. The rubber damping pad is arranged in a single layer. If the frequency ratio cannot meet the request, multi-layer series arrangement can be adopted, but the number of damping pads should not be more than five layers. The model, number, area and rubber hardness of each layer of rubber vibration isolation pads set in series shall be intact and different.
7. The pad and steel plate shall be bonded with adhesive. The plane size of galvanized steel plate shall be 10mm larger than each end of rubber damping pad. Rubber damping pads bonded on the upper and lower layers of galvanized steel plate shall be staggered.
8. Before construction and installation, timely inspection shall be carried out. During installation, the static shrinkage deformation of damping elements shall not exceed the maximum allowable value.
9. When installing the water pump unit, the supporting air of the installed water pump unit shall be flat and have sufficient bearing ability.
10. The vibration damping elements of the unit shall avoid contact with acids, alkalis, organic solvents and other substances.

Metal ball cone hard sealing connection
1) Cut and peel the protective sleeve (the same connection with the metal flat gasket seal).
2) Cut the bellows (the same connection as the metal flat gasket seal).
3) Install the connecting nut into the exposed end of the bellows, and then use the special tool for bellows expansion to stop the expansion, so that the first wave bottom at one end of the bellows is about the same as the outer diameter of the front and rear wave peaks.
4) For trimming, use a hand-held grinding wheel or scissors to remove the part of the round corner of the orifice at one end of the bellows after bulging, and the edge of the orifice shall be free of burrs after trimming.
5) The conical flange shall be processed with the special tool for processing the conical flange. The corrugated end shall be processed into the conical flange, and the flange surface shall be polished with 200 # sandpaper.
6) The sealing connection is connected with various metal ball cone hard sealing joints or valves by connecting nuts.