DIN Standard Globe Valve Series
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
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product drawing
DIN Standard Globe Valve Series
Overview
The DIN Standard Globe Valve is a pipeline control component designed in accordance with German Industrial Standards (DIN). By rotating the handwheel, it drives the stem and disc to perform a vertical lifting motion along the centerline of the seat, achieving precise opening/closing and flow regulation of the pipeline. Its core design feature lies in a rigorous standardized manufacturing system. The valve body structure is designed according to DIN standards, ensuring high interchangeability and dimensional compatibility of the product. The key sealing pair of the valve typically utilizes a tapered or flat sealing structure, and employs erosion-resistant, wear-resistant materials such as hardfaced alloy or flexible graphite, effectively ensuring sealing reliability under high temperature, high pressure, and corrosive conditions. This series of valves primarily uses flange connection or butt weld connection methods. The flange connection complies with standards such as DIN 2501/2543, securing the valve to the pipeline flange with bolts and nuts for easy disassembly and maintenance; the butt weld connection complies with standards such as DIN 3239/EN 12627, forming a permanent connection with the pipeline through welding, offering excellent pressure resistance and anti-leakage performance. The primary drive mode is manual, utilizing the threaded transmission of the handwheel and stem nut to convert rotational torque into the linear motion of the stem and disc, achieving stability and self-locking during the opening and closing process. Depending on automation control requirements, actuators such as electric, pneumatic, or worm gear drives can also be optionally equipped. DIN Standard Globe Valves are widely used in general industrial pipelines for media such as water, steam, oil products, gases, and corrosive media, particularly suitable for fields like petroleum, chemical, power, metallurgy, heating, and shipbuilding, serving as critical fluid control equipment conforming to the European standard system.
Features
1、Standardized Design and High Interchangeability: Strictly designed and manufactured according to German Industrial Standards (DIN). The valve body structure, connection dimensions, and face-to-face dimensions comply with standards such as DIN 3352/2543. This ensures high universality and interchangeability of the product, facilitating selection, installation, and subsequent maintenance or replacement within DIN standard piping systems.
2、High Temperature/Pressure Resistance and Long Service Life: Optimized design for medium-high pressure and high-temperature conditions. The valve body is cast from high-quality carbon steel, stainless steel, or heat-resistant alloy steel. Sealing surfaces utilize tapered or flat hard seal structures, hardfaced with cemented carbide (e.g., Stellite). Combined with floating or guided designs for the disc and stem, this ensures minimal wear and good erosion resistance of the sealing pair during frequent opening/closing and high-temperature thermal cycling, achieving long-term reliable shut-off.
3、Low Flow Resistance Path and Anti-Vortex Design: The internal flow path of the valve body is designed based on fluid mechanics principles, utilizing an "S"-shaped or straight-through passage. The medium flows smoothly, resulting in a lower flow resistance coefficient compared to traditional globe valves. This effectively reduces system pressure loss and avoids medium stagnation or crystallization caused by vortices and dead zones, making it suitable for precision piping systems with strict requirements for pressure loss.
4、Backseat Structure and In-Line Maintenance: A backseat structure is designed at the stem and stuffing box area. When the valve is fully open, the stem tightly contacts the backseat, preventing medium leakage through the packing during valve operation. Most designs allow for in-line replacement of the packing while the valve is in the fully open position, without needing to disassemble the valve, significantly reducing maintenance costs and downtime.
5、Stem Hardening Treatment and Easy Operation: The stem surface undergoes corrosion-resistant nitriding or high-frequency quenching treatment, providing excellent corrosion and wear resistance and reducing the friction coefficient with the packing. Stem threads are precision rolled for high transmission efficiency. Operated with a handwheel or gearbox, the valve features low opening/closing torque, light operation feel, and clear opening indication.
6、Diverse Drive and Connection Options: In addition to standard handwheel operation, electric, pneumatic, or worm gear drive devices can be integrated based on automation control requirements. The primary connection method is flanged, complying with DIN 2501 standards. Other connection forms such as butt weld and socket weld can also be provided based on application requirements, meeting installation specifications and spatial constraints across various industrial fields like petroleum, chemical, power, and shipbuilding.
Dimensions & constructral diagram
DIN Standard Globe Valve Series constructral diagram
Part Name and Material List
| Name | Material |
|---|---|
| Body | cast iron, cast steel, stainless steel |
| Bonnet | cast iron, cast steel, stainless steel |
| Disc | cast iron, cast steel, stainless steel |
| Stem | SS420 |
| Stem nut | bronze |
Performance Specification Table
| Performance Specification Table | ||
|---|---|---|
| Nominal Pressure | 1.6/2.5 | MPa |
| Strength Test Pressure | 2.4/3.75 | MPa |
| Seal Test Pressure | 1.76/2.75 | MPa |
| Applicable Temperature | -10 ~ 80 | ℃ |
DIN Standard Globe Valve Series constructral diagram
DIN Standard Globe Valve overall dimension table
| size | BS EN558 | EN1092-2 PN16 | b | H | ||||
|---|---|---|---|---|---|---|---|---|
| L | D | D1 | D2 | a | n-d | |||
| DN15 | 130 | 95 | 65 | 46 | 2 | 4-14 | 14 | 180 |
| DN20 | 150 | 105 | 75 | 56 | 2 | 4-14 | 16 | 176 |
| DN25 | 160 | 115 | 85 | 65 | 3 | 4-14 | 16 | 195 |
| DN32 | 180 | 140 | 100 | 76 | 3 | 4-19 | 18 | 184 |
| DN40 | 200 | 150 | 110 | 84 | 3 | 4-19 | 19 | 192 |
| DN50 | 230 | 165 | 125 | 99 | 3 | 4-19 | 19 | 251 |
| DN65 | 290 | 185 | 145 | 118 | 3 | 4-19 | 19 | 264.5 |
| DN80 | 310 | 200 | 160 | 132 | 3 | 8-19 | 19 | 304.5 |
| DN100 | 350 | 220 | 180 | 156 | 3 | 8-19 | 19 | 350 |
| size | BS EN558 | D | EN1092-2 PN16 | a | b | H | ||
|---|---|---|---|---|---|---|---|---|
| L | D1 | D2 | n-d | |||||
| DN125 | 400 | 250 | 210 | 184 | 8-19 | 3 | 19 | 413 |
| DN150 | 480 | 285 | 240 | 211 | 8-23 | 3 | 19 | 454 |
| DN200 | 600 | 340 | 295 | 266 | 12-23 | 3 | 20 | 577 |
| DN250 | 730 | 405 | 355 | 319 | 12-28 | 3 | 22 | 740 |
| DN300 | 850 | 460 | 410 | 370 | 12-28 | 4 | 24.5 | 720 |
