Bidirectional pressure butterfly valve, bidirectional pressure flange butterfly valve

Bidirectional pressure butterfly valve, bidirectional pressure flange butterfly valve

Valve type: Bidirectional pressure butterfly valve
Valve models: DS373H, DS343H
Size specifications: DNm50-1400m
Installation form: clamp type, flange type
Pressure rating: 1.0-6.4MPa
Main materials: cast steel WCB, carbon steel CS, stainless steel 304, 316, etc,
Product nameplate: Pudie

The bi-directional pressure butterfly valve and bi-directional pressure flange butterfly valve adopt the "inclined elliptical butterfly plate radial dynamic balance sealing system" to reliably achieve zero leakage of butterfly valve sealing, which is a high-tech new product with truly international leading level. After mass production, this product has created good economic and social benefits, and has been widely selected by users both domestically and internationally, and is highly welcomed.
Structural characteristics of bidirectional pressure butterfly valve and bidirectional pressure flange butterfly valve
During the opening and closing process of the butterfly valve, there is no friction or jamming between the sealing ring of the butterfly plate and the sealing surface of the valve seat. The pressure angle on the sealing surface is greater than the friction angle. The butterfly valve adopts a "radial dynamic balance sealing system" design, which has extremely low resistance to the opening of the butterfly plate. During the opening and closing process, the sealing surface of the butterfly plate can be quickly completed at various points along the 360 ° circumference, with point by point contact and point by point disengagement, achieving a fast and accurate sealing action that automatically matches the closing contact. The all metal hard sealed butterfly valve adopts an integral metal seal for the sealing surface, and after high-precision machining, the elliptical section sealing ring is formed with the valve seat metal sealing surface to form a sealing pair. This sealing structure does not produce plastic deformation under high pressure, and there is no stamping stress, welding stress, elastic annealing, or biting brittle fracture phenomenon at high or low temperatures. It completely solves the problem of leakage caused by the unreasonable sealing surface structure of traditional butterfly valves and greatly improves the reliability of valve sealing performance.
Scope of application for bidirectional pressure butterfly valve and bidirectional pressure flange butterfly valve
This valve is suitable for use as a closed-loop sealing device, throttling device, and regulating device in pipelines with high, medium, low, high, and low temperatures. Widely used in industries such as petroleum, chemical, metallurgical, mining, electricity, energy, transportation, farmland, hydropower, and construction. Especially suitable for working conditions with strict sealing, such as gas pipelines, and also applicable to corrosive media such as water, steam, oil, air, electricity, dust, acid, etc.

Double directional pressure butterfly valve, double directional pressure flange butterfly valve picture:

Main external connection dimensions

Technical drawings for bidirectional pressure butterfly valve and bidirectional pressure flange butterfly valve:

After sales ordering:
1: To inquire about ordering products, please provide the product category, model, specifications, material type, pressure rating, technical requirements, and also provide old product drawings to customer service personnel for accurate quotation and supply cycle,
2: Pudie Company implements the three guarantees of product quality for all products sold, including return, replacement, and warranty during the warranty period,
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