ZBA48SH-16/25/40/64/100 C/I/V; ZBA48TH-100; ZBA48SB-160 High Temperature and High Pressure Spring Full Lift Safety Valve

High Temperature and High Pressure Spring Full Lift Safety Valve for high-temperature steam equipment and pipelines requiring full-lift overpressure protection. Key selection data include DN25-DN250, confirm by model and pressure class, PN16, PN25, PN40, PN64, PN100 and selected high-pressure variants, C type up to 425 deg C; I type up to 510 deg C; V type up to 550 deg C, 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。.

技术参数与选型数据

产品型号

ZBA48SH-16/25/40/64/100 C/I/V; ZBA48TH-100; ZBA48SB-160

尺寸范围

DN25-DN250, confirm by model and pressure class

压力等级

PN16, PN25, PN40, PN64, PN100 and selected high-pressure variants

温度范围

C type up to 425 deg C; I type up to 510 deg C; V type up to 550 deg C

适用介质

蒸汽

连接类型

Flanged inlet and outlet

标准与合规

安全阀设计、性能及试验参考遵循 GB/T 12241、GB/T 12242 和 GB/T 12243；适用时，型号编制遵循 JB/T 308 阀门型号编制方法。.

工程解析：型号逻辑与应用边界

型号代码： A48SH/TH/SB identify high-temperature high-pressure spring full-lift safety valve variants; C/I/V identify material or temperature class.

典型应用： high-temperature steam equipment and pipelines requiring full-lift overpressure protection

排量审查： 主要连接尺寸列于源目录页面。排量及流道尺寸应根据整定压力、介质、温度及适用规范进行确认。.

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

The table below is transcribed from catalog page 35. Verify critical dimensions against the approved order drawing before fabrication or piping release.

Catalog page 035 – Parameter Table 1
Nominal Pressure (PN)	公称通径（DN）	do	公称通径（DN）	L	L1	Approx. H
6/25/40 1	25	15	32	110	95	395
6/25/40 1	40	25	50	120	1 10	418
6/25/40 1	50	32	65	135	120	525
6/25/40 1	50	32	80	135	120	525
6/25/40 1	80	50	100	170	135	675
6/25/40 1	100	65	125	205	160	748
6/25/40 1	100	65	150	205	160	748
6/25/40 1	150	100	200	230	210	1 135
6/25/40 1	200	125	250	290	310	1230
6/25/40 1	250	150	300	350	320	1285
64/100	40	25	50	135	120	518
64/100	50	32	65	160	130	625
64/100	50	32	80	160	145	600
64/100	80	50	100	175	160	740
64/100	100	65	125	220	200	920
64/100	100	65	150	220	200	920
64/100	150	90	200	280	280	1 128
64/100	200	125	250	300	295	1350
64/100	250	150	350	370	390	1440
ZBA48TH-100	50	32	80	160	145	580
ZBA48SB-160	80	40	150	215	210	820

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: High-temperature carbon/alloy steel or stainless material selected by C/I/V service code. Trim and internals: High-temperature trim with hard alloy sealing surface for steam service. Spring and stem: High-performance spring selected and tested for high-temperature service.

Testing and inspection: Set pressure calibration, shell strength test, seat tightness/leakage test, reseating/blowdown check, dimensional inspection and material verification can be supplied according to the confirmed standard and order requirements.

Source and scope: product data is based on Zobai Safety Valve Product Catalog.pdf, catalog page 35. 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.

ZBA46系列先导式安全阀

适用于需要更严密密封和稳定整定压力性能的高压工况的先导式安全阀。.

ZBWA42系列波纹管平衡式安全阀

适用于背压工况、且稳定性能至关重要的波纹管平衡式安全阀。.

ZBA68系列高温蒸汽安全阀

适用于锅炉、蒸汽管线及其他高温系统的高温蒸汽安全阀。.

SVL488系列卫生级安全阀

用于卫生工艺管路及清洗系统的卫生级安全阀，满足可清洁的压力保护要求。.

常见问题

Safety Valve FAQs

What models are covered by this ZBA48SH-16/25/40/64/100 C/I/V; ZBA48TH-100; ZBA48SB-160 High Temperature and High Pressure Spring Full Lift Safety Valve page?