Refinery Safety Valve Series: A and TA model families Refinery Safety Valve Series

Refinery Safety Valve Series for petrochemical and refinery pressure vessels requiring vessel pressure control and full discharge when pressure exceeds set point. Key selection data include Model-series dependent, including A and TA type dimension tables, Catalog model table covers set-pressure ranges approximately 0.03-4.2 MPa and related pressure classes, Standard refinery service ranges up to 300 deg C and high-temperature ranges above 300 deg C to 550 deg C by model, 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

Refinery Safety Valve Series: A and TA model families

尺寸范围

Model-series dependent, including A and TA type dimension tables

压力等级

Catalog model table covers set-pressure ranges approximately 0.03-4.2 MPa and related pressure classes

温度范围

Standard refinery service ranges up to 300 deg C and high-temperature ranges above 300 deg C to 550 deg C by model

适用介质

Gas or liquid with stable back pressure, non-corrosive or slightly sulfur-corrosive refinery media

连接类型

Flanged refinery safety valve designs, including A and TA structures

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： A and TA model series identify refinery safety valve structures and set-pressure/temperature ranges; final model is selected from the catalog model table.

典型应用： petrochemical and refinery pressure vessels requiring vessel pressure control and full discharge when pressure exceeds set point

排量审查： Discharge capacity depends on A/TA model series, set pressure and medium. Use catalog model table and safety valve discharge calculation for sizing.

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 043-045. Verify critical dimensions against the approved order drawing before fabrication or piping release.

Catalog page 044 – Parameter Table 1
型号	公称通径（DN）	LI	Column 4	Column 5	G1	Column 7	Column 8	g2	Column 10	Column 11	Column 12	Column 13	. d	Column 15
D40AI TAI D40AI5F40.TAI5F40.A2J16TA2 」 16A2H40TA2H40A3L16TA3L16	100	99	1 1 5	85	57	160	125	100		1 9	16	4 4	4.18	327 424.5
D40AI TAI D40AI5F40.TAI5F40.A2J16TA2 」 16A2H40TA2H40A3L16TA3L16	120	107	145	1 1 0	75	160	125	100		20	16	4 8	4.18	363.6 433.5
D40AI TAI D40AI5F40.TAI5F40.A2J16TA2 」 16A2H40TA2H40A3L16TA3L16	150	139	160	125	92	195	160	135	14	22	20	46130	46252	409 539.5
D40AI TAI D40AI5F40.TAI5F40.A2J16TA2 」 16A2H40TA2H40A3L16TA3L16	150	139	160	125	87	195	160	135	14	22	20	46130	46252	409 539.5
D40AI TAI D40AI5F40.TAI5F40.A2J16TA2 」 16A2H40TA2H40A3L16TA3L16	160	147	195	160	133	215	180	155		22	20	8 8	8.18	487 652
A3K40TA3K40 6A4PI TA4P16A4N40TA4N40A6R5 5.TA6R5 5A6Q16TA6Q16	160	149	195	160	120	215	180	155	1 4	24	20	46252	8.18	489 654
A3K40TA3K40 6A4PI TA4P16A4N40TA4N40A6R5 5.TA6R5 5A6Q16TA6Q16	200	176	215	180	153	280	240	210	1 3	22	24	8 8	8.23	596 789
A3K40TA3K40 6A4PI TA4P16A4N40TA4N40A6R5 5.TA6R5 5A6Q16TA6Q16	200	182.5	230	190	149	280	240	210	17.5	26	24	46257	8.23	639.5 832.5
A3K40TA3K40 6A4PI TA4P16A4N40TA4N40A6R5 5.TA6R5 5A6Q16TA6Q16	230	228	280	240	195	335	295	265		24	26	46257	46379	757 976
A3K40TA3K40 6A4PI TA4P16A4N40TA4N40A6R5 5.TA6R5 5A6Q16TA6Q16	230	228	280	240	189	335	295	265		24	26	46257	46379	775 986

Catalog page 045 – Parameter Table 1
Senes	型号	公称通径（DN）	Nominal Pressure (PN)	Nominal Pressure (PN)	Code	dO Diameter Size	Area cm2	Temperatu Operatlng deg C re

Catalog page 045 – Parameter Table 2
Nominal Pressure (PN)	Nominal Pressure (PN)	25 0x50.78 ( 1 )	x2.00 ( 1	8.54 50x	80 ( 2 5 ).31	19 80.62 x	100Spring12 ( 3.) 56NO.	40 100.69x	150 28 ( 4.26 )	103 150.82x	200 72 ( 6.35 )

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: Refinery-service carbon steel, alloy steel or stainless body according to A/TA model family and corrosion/temperature requirement. Trim and internals: Hard alloy trim and refinery-service internals selected by temperature, pressure and corrosion condition. Spring and stem: 50CrVA spring for standard service; stainless or coated fluoroplastic/304 spring options for corrosive service where specified.

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 043-045. 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.

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常见问题

Safety Valve FAQs

What models are covered by this Refinery Safety Valve Series: A and TA model families Refinery Safety Valve Series page?