ZBXY/ZBBPXYL系列松套式法兰泄压阀
Loose Knot Type Flanged Pressure Relief Valve for liquid, vapor and steam relief service requiring compact design, high sealing performance and high back-pressure suitability. Key selection data include Threaded and flanged sizes per catalog standard parameter table, NPT, Class 150, Class 300 and Class 600 inlet connection options by model code, Confirm by seal material, body material and service, materials, connection standard and set pressure.
最终整定压力、认证泄放量、材质代号及连接标准须以经批准的参数表为准，并在采购前予以确认。.
- Size range: Threaded and flanged sizes per catalog standard parameter table
- Pressure rating: NPT, Class 150, Class 300 and Class 600 inlet connection options by model code
- Temperature: Confirm by seal material, body material and service
- Connection: Male NPT, female NPT, Class 150/300/600 flanged inlet options
- Media: Gas, vapor, liquid, steam and high-back-pressure applications
- 图纸、试验记录和材料文件已按订购配置确认。.
技术参数与选型数据
产品型号
ZBXY/ZBBPXYL系列
尺寸范围
Threaded and flanged sizes per catalog standard parameter table
压力等级
NPT, Class 150, Class 300 and Class 600 inlet connection options by model code
温度范围
Confirm by seal material, body material and service
适用介质
Gas, vapor, liquid, steam and high-back-pressure applications
连接类型
Male NPT, female NPT, Class 150/300/600 flanged inlet options
标准与合规
ISO 4126-1, API RP 520, API Std 526, API Std 527, ASME Boiler and Pressure Vessel Code Section VIII Division 1, and ASME B16.5 flange references where applicable.
工程解析：型号逻辑与应用边界
型号代码： ZBXY = gas/vapor valve; ZBBPXYL = liquid valve; inlet connection code M/F/01/03/06 identifies NPT or flange class; material code C/S/SM/SL identifies body material.
典型应用： liquid, vapor and steam relief service requiring compact design, high sealing performance and high back-pressure suitability
排量审查： Balanced piston design compensates for back-pressure changes. Final capacity is selected by gas, vapor, liquid or steam service and set pressure.
本产品系列不应仅依据型号、公称尺寸或压力等级进行选型。请确认泄放工况、所需泄放量、整定压力、操作裕量、温度、背压及实际连接标准。.
尺寸与选型指南
Critical dimensions are configuration-specific. Use the verified specification fields below for preliminary review and request the controlled GA drawing for final piping or fabrication approval.
RFQ checklist
询价清单：型号或阀门类型、DN/NPS、PN/Class、整定压力、泄放介质、工作温度、阀体及内件材质、进出口连接标准、阀帽/杠杆/先导选项、数量、图纸、证书及检验要求。.
Failure Analysis, Manufacturing Evidence and Quality Control
Common misapplication risks: incorrect thread or connection standard, insufficient certified relieving capacity, unsuitable body or trim material, operating pressure too close to set pressure, unreviewed back pressure, and installation loads transferred to the valve.
Material review: body materials: WCB, CF8, CF8M or CF3M body material codes; full 316 stainless, Monel, Hastelloy and NACE-compliant options are available. Trim and internals: Stainless steel internal parts for corrosion resistance; optional 316, Monel, Hastelloy and NACE materials. Spring and stem: Alloy steel or stainless steel spring according to temperature range and material code.
Testing and inspection: Set pressure tolerance within +/-3 percent, overpressure and blowdown per ASME/API service, API 527 seat tightness, shell/seat test, material review and dimensional inspection according to the confirmed order.
Source and scope: product data is based on Zobai Safety Valve Product Catalog.pdf, catalog page 097-102. Project compliance remains subject to the approved datasheet, drawing, calculation and controlled certificates for the ordered configuration.
Review material traceability, type-test scope 和 project certificate requirements.
Related Products
常见问题
Safety Valve FAQs
本页涵盖的ZBXY/ZBBPXYL系列松套式法兰泄压阀包含哪些型号？
ZBXY/ZBBPXYL系列
应确认哪些尺寸、压力和温度数据？
规格：螺纹及法兰尺寸按产品目录标准参数表。压力：NPT、Class 150、Class 300 和 Class 600 进口连接选项按型号代码。温度：根据密封材料、阀体材料及工况确认。所选型号的具体组合请予以确认。.
该产品系列可处理哪些介质？
适用于气体、蒸汽、液体及高背压工况。实际流体成分和温度需进行材质与密封相容性审查。.
产品目录中的尺寸表能否用于最终制造？
仅用于初步审查。在管道或设备制造前，请根据批准的订单图纸确认关键尺寸、连接细节和方向。.
询价单（RFQ）中应包含哪些内容？
询价清单：型号或阀门类型、DN/NPS、PN/Class、整定压力、泄放介质、工作温度、阀体及内件材质、进出口连接标准、阀帽/杠杆/先导选项、数量、图纸、证书及检验要求。.