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| Port | Ningbo |
| Packaging | wooden box |
| Lead Time | 3-5 |
| Connection | Male thread (G / NPT / BSPT optional) | Structure | Low lift (h = 1/40–1/4 d₁) |
| Bonnet | Enclosed | Body | 304 stainless steel (CF8) |
| Spring | 50CrVA | Size | DN10–DN80 (3/8″–3″), |
| Temperature | ≤ 200 °C | Media | Air, steam, corrosive gas/liquid |
The A28H-16P is an externally threaded, open-bonnet full-lift safety valve with lever, 304 SS body and 13Cr seat, PN16, for high-capacity relief of compressed air, steam and LPG — the compliant choice for gas vessels under TSG 92-2026.
Disc is spring-loaded, full-lift (lift ≥ 1/4 flow dia); on overpressure it snaps fully open and relieves at max flow area, re-seating tightly on drop — for high-capacity relief of compressible media (gas/steam/LPG). Top lever allows periodic manual lift test; open bonnet vents to atmosphere and avoids spring heat-drift. 304 SS body resists corrosion; 13Cr seat is wear-resistant and economical.
Anfeng Industrial Zone, Oubei Town, Oubei Subdistrict, Yongjia County, Wenzhou City, Zhejiang Province
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