ZBSVL488; SVL488-B; SVL488-C; A42Y-16/25/40 P/R clean-system configuration Stainless Steel Safety Valve for Cleaning System

Stainless Steel Safety Valve for Cleaning System for medical equipment, clean pipelines, pressure vessels, brewing, beverage and hygienic process systems. Key selection data include DN20-DN150 according to catalog dimension table, PN16, PN25 and PN40 for A42Y P/R clean-system configuration, Low-pressure steam and clean process service, confirm by seal and material, materials, connection standard and set pressure.

Final set pressure, certified relieving capacity, material code and connection standard must be confirmed on the approved datasheet before purchase.

Technical Specifications and Selection Data

Product Model

ZBSVL488; SVL488-B; SVL488-C; A42Y-16/25/40 P/R clean-system configuration

Size Range

DN20-DN150 according to catalog dimension table

Pressure Rating

PN16, PN25 and PN40 for A42Y P/R clean-system configuration

Temperature Range

Low-pressure steam and clean process service, confirm by seal and material

Applicable Media

Steam, gas and liquid in medical, beverage, brewing and clean process systems

Connection Type

Clean-system flanged connection and selected cap configuration

Standards and Compliance

GB/T 12241, GB/T 12242 and GB/T 12243 for safety valve design, performance and test references; model coding follows the JB/T 308 valve model method where applicable.

Engineering Insight: Model Logic and Application Boundary

Model code: SVL488-B/C identify clean-system cap variants; A42Y P/R clean-system configuration provides stainless safety valve dimensions by PN rating.

Typical application: medical equipment, clean pipelines, pressure vessels, brewing, beverage and hygienic process systems

Capacity review: Main connection dimensions are listed on the source catalog page. Discharge capacity and orifice sizing should be confirmed by set pressure, medium, temperature and applicable code.

This product family should not be selected from model code, nominal size or pressure class alone. Confirm the relieving scenario, required capacity, set pressure, operating margin, temperature, back pressure and actual connection standard.

Dimensions and Selection Guide

The table below is transcribed from catalog page 051-052. Verify critical dimensions against the approved order drawing before fabrication or piping release.

Catalog page 051 – Parameter Table 1
Type / Model	Nominal Diameter (DN)	R	Two	Type / Model	are available	Approx. H

Catalog page 051 – Parameter Table 2
lnlet	Outlet	do	R	G	L	lnlet Clamp	Outlet
25 40 50	40	23	64	65	203		1 1/2"
25 40 50	65	37	80	90	230	1 1/2"	2 1/2"
25 40 50	80	46	95	100	350	2 “	3"

Catalog page 052 – Parameter Table 1
Nominal Diameter (DN)	do	Nominal Diameter (DN)	L	L1	Approx. H
20 25 32 40 50 65 80 100 125 150		25	110	95	281
20 25 32 40 50 65 80 100 125 150	1 6	32	110	95	281
20 25 32 40 50 65 80 100 125 150	20	40	115	100	285
20 25 32 40 50 65 80 100 125 150	25	50	120	1 10	295
20 25 32 40 50 65 80 100 125 150	32	65	135	120	305
20 25 32 40 50 65 80 100 125 150	40	80	160	140	394
20 25 32 40 50 65 80 100 125 150	50	100	170	135	406
20 25 32 40 50 65 80 100 125 150	65	125	205	160	511
20 25 32 40 50 65 80 100 125 150	80	150	210	190	586
20 25 32 40 50 65 80 100 125 150	100	175	255	230	601

RFQ checklist

RFQ checklist: model or valve type, DN/NPS, PN/Class, set pressure, relieving medium, operating temperature, body and trim material, inlet/outlet connection standard, cap/lever/pilot options, quantity, drawing, certificate and inspection requirements.

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: Stainless steel body and clean-service material options, typically 304/316/316L according to order. Trim and internals: Stainless steel trim suitable for clean steam, gas or liquid service. Spring and stem: Stainless or clean-service spring material according to cap type and medium.

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 051-052. Project compliance remains subject to the approved datasheet, drawing, calculation and controlled certificates for the ordered configuration.

Review material traceability, type-test scope and project certificate requirements.

ZBA46 Series Pilot Operated Safety Valves

Pilot operated safety valves for higher-pressure service requiring tighter sealing and stable set pressure performance.

ZBWA42 Series Bellows Balanced Safety Valves

Bellows balanced safety valves for back pressure applications where stable performance is important.

ZBA68 Series High Temperature Steam Safety Valves

High temperature steam safety valves for boilers, steam lines, and other elevated-temperature systems.

SVL488 Series Sanitary Safety Valves

Sanitary safety valves for hygienic process lines and cleaning systems requiring cleanable pressure protection.

FAQ

Safety Valve FAQs

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