Forged steel valves with the following considerations

Forged steel valve often overlooked issue of the amount of grease. Grease gun refueling, operators of low-temperature valve selection valve and grease coupling method, the grease job. There are two forged steel gate valve situation: on the one hand, less fat less grease, sealing surface accelerated wear due to lack of lubricant. On the other hand, excessive grease, resulting in waste. That there is no according to valve type category, the valve sealing capacity of different calculations. Can be calculated valve size and type of seal capacity, and then injected into a reasonable amount of grease.
Forged steel gate valve pressure often overlooked. Operation in the grease, the grease pressure regulated half free floating ball type steam drain valve of a peak and valley changes. Low pressure safety valve, seal leakage or failure, the pressure is too high, the injection port valve manufacturer blocked, the lipid hardening seal or sealing ring and the valve ball, valve plate locking. Resin injection pressure is usually too low, grease into the valve chamber over the bottom, generally occurs in a small gate. The grease flow control valve pressure is too high, hand check insulation valve check greasing the mouth, such as lipid remote control float valve hole blocking satisfied feeling spring closed with a condition for replacing the spanner; another plunger valve is a lipid hardening, to use the cleaning fluid, repeated failure to soften the seal fat, and injection new grease replacement. In addition, the seal type and sealing materials, also affected the grease seal pressure, different forms have different injection pressure, in general, hard sealing grease injection pressure is higher than the soft seal.
Forged steel globe valve the valve in the switch attention to a problem. Ball valve maintenance in the open position when the general state, under special circumstances, choose to close. All other valves can not be punished in order to open spaces. Forged steel valve in the conservation must be in a closed state, to ensure that the grease seal along the trenches filled with ring, if the open position, sealing grease flow directly into the cavity or valve, resulting in waste. The valve greasing, the grease effect often ignore the problem. Operation pressure grease, grease, the switch position are normal. But to ensure that the valve greasing effect, and sometimes need to open or close the valve, lubricating effect on the inspection, confirmed that the ball valve or gate surface lubrication uniform.
Forged steel check valve should pay attention to problem of pressure relief valve and a plug of sewage. Pressure test valve, gas valve chamber sealed chamber and the water temperature rises due to step-up, when to conduct the sewage grease relief, in order to facilitate the smooth progress of the grease. Grease the sealing cavity was full of air and water replacement. Timely relief valve chamber pressure drop, and guarantee the safe use of the valve. After greasing, be sure to tighten the wire blocking the sewage and pressure relief, to prevent the accident. Grease, fat even pay attention to the problem. Normal greasing, the grease away from the nearest exit out of holes in first out fat and grease, and then to the low end is the high point, successive, fat. If not by law or not fat, prove the existence of plug, Qingtong processing.