Standard Forward-Acting Rupture Disc
Product Model: ZD-017 (Economy / General Purpose)
Material: Carbon Steel holders with 316 Stainless Steel membrane (standard).
Key Feature: Cost-effective, reliable protection for non-critical or less demanding services.
Pressure Range: 1 barg to 25 barg.
Availability: Widely stocked in common sizes and pressures for fast delivery.
Typical Use: Air receivers, water systems, non-hazardous gas storage, HVAC equipment, and educational facilities.
Overview
Not every application requires exotic materials or nuclear-level documentation. For general industrial overpressure protection where the medium is non-hazardous (air, water, nitrogen) and conditions are mild, our Economy Series forward-acting disc delivers essential safety at an attractive price. Manufactured to solid industrial standards, it provides a robust and dependable solution for countless standard applications, helping facilities meet basic safety codes without unnecessary cost.
Features & Benefits
Excellent Value: Provides core pressure relief functionality at a highly competitive price point.
Rapid Availability: Popular sizes and pressure settings are maintained in stock for 24-48 hour shipment in many regions.
Proven Reliability: Simple, time-tested design ensures it performs when needed.
Easy Selection: Simplified product datasheet with clear pressure/size matrices makes ordering straightforward.
How It Works
This is the classic forward-acting, pre-scored rupture disc. Under overpressure, the stainless steel dome ruptures along its score lines, providing immediate full-bore relief. Its design prioritizes function and value over advanced features.
Specifications (Descriptive)
The most commonly requested sizes from DN25 (1") to DN150 (6") are typically available from stock. Standard burst pressures include 2, 4, 6, 8, 10 barg, etc., within the overall range. Holders are carbon steel with a corrosion-resistant paint finish. The bursting membrane is 304 or 316 stainless steel. Standard burst tolerance is ±5%. Gaskets are typically graphite or PTFE for general service. Flange ratings are ANSI 150# or PN16.
Q&A
Q: What are the limitations of the Economy Series?
A: It is not suitable for corrosive media, high cycle fatigue, cryogenic temperatures, high purity, or any service requiring specific material certifications (e.g., NACE, FDA). It is for general industrial fluids like air, water, and inert gases.
Q: Can I use this on a steam boiler?
A: No. Steam boiler safety valves and rupture discs are highly regulated and must be ASME Section I stamped and certified. This is an ASME Section VIII (pressure vessel) device and is not approved for boiler applications.
Q: How does delivery work for stocked items?
A: Contact your local ZD Safety distributor or our sales office with the desired model (ZD-017), size (DN), and burst pressure. We can confirm immediate stock levels and provide shipping options.
About ZD Safety
We believe in safety for all. Our Economy Series ensures that even standard, low-risk applications can be equipped with a quality, manufactured safety device, helping to raise the baseline of industrial safety practices globally.


