German D+P valve D+P model D+P price

D+P valves serve an on/off function. They are commonly installed at the inlets and outlets of cold and heat sources, equipment inlets and outlets, and pipeline branches (including risers), and can also be used as drain valves and air vent valves. Common shut-off valves include gate valves, globe valves, ball valves, and butterfly valves. Gate valves can be classified into rising stem and non-rising stem, single wedge and double wedge, as well as wedge-shaped gate and parallel gate types. Gate valves do not provide tight shutoff, and large-diameter gate valves are difficult to open; the valve body size is small along the flow direction, resulting in low flow resistance, and gate valves have a wide range of nominal diameters. Globe valves are classified into straight-through, angle, and DC types based on media flow direction, with rising stem and non-rising stem variants. Globe valves provide better shutoff tightness than gate valves, have a longer valve body, higher flow resistance, and a maximum nominal diameter of DN200. The core of a ball valve is a perforated sphere. When the valve stem is actuated so that the sphere's opening aligns with the pipeline axis, it is fully open; rotating 90° results in full closure. Ball valves have certain regulation capabilities and provide relatively tight shutoff. The core of a butterfly valve is a circular disc, which rotates around a vertical axis perpendicular to the pipeline axis. When the plane of the disc is aligned with the pipe axis, it is fully open; when the disc plane is perpendicular to the pipe axis, it is fully closed. Butterfly valves have a short body length and low flow resistance, but are more expensive than gate valves and globe valves. The core of a butterfly valve is a circular disc, which rotates around a vertical axis perpendicular to the pipeline axis. When the plane of the disc is aligned with the pipe axis, it is fully open; when the disc plane is perpendicular to the pipe axis, it is fully closed. Butterfly valves have a short body length and low flow resistance, but are more expensive than gate valves and globe valves.

D+P valve related accessories

There are valves and fittings, both used for pipeline connection or control systems; valves and fittings cannot exist independently but are complementary. Valve fittings are available in carbon steel and stainless steel, as well as PVC, or other materials. The first two are the most commonly used. In recent years, with the improvement of people's living standards, the demand for processed food has increased accordingly. This has driven the rapid development of food machinery, leading to a boom in the production of stainless steel sanitary valve fittings. When people refer to valve fittings, they mostly mean stainless steel sanitary grade.

D+P valve specification precautions

Acceptance follows HG 20202-2000 "Code for Construction and Acceptance of Degreasing Engineering". Before assembly, each component is wiped with clean precision filter paper; selecting dead corners of the components, if the filter paper does not change color, it is considered qualified. 1) The valve model should indicate the required national standard number. If it is an enterprise standard, relevant explanations for the model should be provided. 2) The valve working pressure must be ≥ the pipeline working pressure; without affecting the price, the pressure the valve can withstand should be greater than the actual working pressure of the pipeline. 3) For valve manufacturing standards, the applicable national standard number should be specified; if it is an enterprise standard, enterprise documents should be attached to the procurement contract.

D+P valve common faults

During continuous use, the rubber elastomer in butterfly valves may experience tearing, wear, aging, perforation, or even detachment. Traditional hot vulcanization processes are difficult to adapt to on-site repair needs, requiring specialized equipment, consuming significant thermal and electrical energy, and being time-consuming and labor-intensive. Nowadays, polymer composite material methods are gradually replacing traditional methods, with the Fushilan technology system being the most widely applied. Its products possess superior adhesion and excellent wear and tear resistance, ensuring that repairs achieve or even exceed the service life of new components, significantly reducing downtime.

Weidou Intelligent Technology specializes in selling German D+P valves, D+P safety valves, D+P globe valves, D+P control valves, D+P solenoid valves, D+P ball valves, D+P proportional valves, D+P diaphragm valves, D+P butterfly valves, D+P hydraulic transmission valves, D+P check valves, D+P pressure reducing valves, D+P relief valves, D+P sequence valves, D+P balance valves, D+P throttle valves, D+P directional control valves, all original imports from Germany. We welcome inquiries and orders from users.