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D371X-150LB American Standard Lug Type Butterfly Valve

D371X-150LB American Standard Lug Type Butterfly Valve

  • Model:D371X-150LB/D371F-150LB
  • Specification:DN50-DN600
  • Temperature:≤80℃
  • Medium:Water and water-like media
  • Pressure:150LB
  • Connection method:Wafer
  • Driving method:Manual, worm gear, electric, pneumatic
  • Material:Cast iron, ductile iron, stainless steel + rubber lined, PTFE lined
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D371X-150LB American Standard Lug Type Butterfly ValveOverview

Overview
The D371X-150LB American Standard Butterfly Valve is a wafer-type butterfly valve designed in accordance with the U.S. standard 150pound pressure rating. The valve controls fluid flow by rotating a disc 90° around the stem inside the valve body. Its centerline symmetrical design ensures uniform contact between the disc and seat. The disc sealing is typically achieved with rubber or elastic polymer materials, which form a bidirectional seal through compression deformation. This valve is widely used in industrial applications such as petroleum, chemical, and power industries, and is particularly suitable for fluid control in pipeline systems conforming to American standards (ANSI/ASME).

Product Drawing ofD371X-150LB American Standard Lug Type Butterfly Valve

D371X-150LB American Standard Lug Type Butterfly ValveCharacteristic

Features

1、American Standard Pressure Rating: Strictly complies with ANSI/ASME B16.34 standard with a pressure rating of 150LB. Suitable for American standard pipeline systems, ensuring safety and reliability under corresponding operating conditions.

2、Bidirectional Soft Seal Design: Utilizes elastic soft materials such as rubber or PTFE as the sealing ring. Bidirectional sealing is achieved by compression during disc rotation, offering low leakage in the closed state and excellent sealing performance.

3、Compact Wafer-Type Structure: Adopts a wafer-type connection, featuring short face-to-face dimensions, small volume, and light weight. Facilitates installation in confined spaces, making it especially suitable for retrofit projects or densely arranged piping.

4、Smooth and Flexible Operation: Can be equipped with a handle, worm gear, or pneumatic/electric actuator. Manual operation allows quick opening and closing—90° rotation completes full open or close—with low required operating torque.

5、Corrosion-Resistant Material Options: The valve body can be made from materials such as cast steel or stainless steel. The lining and disc can be selected from different anti-corrosion materials according to medium characteristics, making it suitable for water, oils, gases, and mildly corrosive media.

6、Easy and Economical Maintenance: Simple in structure, easy to disassemble, with straightforward replacement of wear-prone parts (e.g., sealing rings), resulting in low maintenance costs and a long service life.

D371X-150LB American Standard Lug Type Butterfly Valvestructure principle

D371X-150LB American Standard Lug Type Butterfly Valve Structural Drawing

Parts List and Material Specification

名称Name材料Materials
蜗轮箱Worm Gear Box球墨铸铁Ductile Iron
蜗杆Worm (Shaft)碳钢(调质处理)Carbon Steel (Quenched & Tempered)
蝶板Disc碳钢(衬丁腈橡胶)Carbon Steel (Lined with NBR)
阀杆Stem铬不锈钢(304/316)Chromium Stainless Steel (304/316)
阀座Seat丁腈橡胶 / 三元乙丙橡胶Nitrile Rubber (NBR) / EPDM
螺栓Bolt碳钢(镀锌)/ 不锈钢Carbon Steel (Galvanized) / Stainless Steel
阀体Body铸铁、球墨铸铁、不锈钢+衬胶、衬氟Cast iron, ductile iron, stainless steel + rubber lining, fluorine lining


D371X-150LB American Standard Lug Type Butterfly Valvetechnology parameter

Performance Specification Table

性能规范表Performance Specification Table
公称压力Nominal Pressure (PN)150LBMPa
强度试验压力Shell Test Pressure1.5times
密封试验压力Seat Test Pressure1.1times
适用温度Operating Temperature Range≤80


D371X-150LB American Standard Lug Type Butterfly Valvestandard size

D371X-150LB American Standard Lug Type Butterfly Valve Overall Dimension Drawing

D371X-150LB American Standard Lug Type Butterfly Valve overall dimension table

规 格(mm) Specifications (mm)连接尺寸Connection Dimensions
H1Hn-ΦdΦDLAB
PN10PN18PN10PN16
DN50632644--164--1612512542148136
DN65952724--164--1614514545148136
DN801022774--168--1616016045148136
DN1001242808--168--1618018052148136
DN1251393028--168--1621021055148136
DN1501493198--208--2024024056148136
DN2001814458--2012--2029529561193263
DN25021046912--2012--2435035566193263
DN30024653012--2012--2440041077210263
DN35027952612--2016--2440047077210263
DN40030563110--2416--27515525102250377
DN45036584020--2420--27565595114260377
DN50037168520--2420--30620650130215269
DN60045780820--2720--33725770152334269