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A41 Series Spring-Loaded Micro-Opening Safety Valve with H8 Bore Precision, Ra
A41 Series Spring-Loaded Micro-Opening Safety Valve with H8 Bore Precision, Ra
Specifications
Surface Roughness :
Ra<0.4μm
Bore Precision :
H8
Max Flow :
160 l/min (customizable)
Brand Name :
Guoyue
Place of Origin :
Jiangsu, China
MOQ :
1 piece
Nominal Pressure :
1.6 MPa, 4.0 MPa, 6.4 MPa (PN16, PN40, PN64)
Barrel Material :
45#, 42CrMo, or 27SiMn
Max Pressure :
21 Bar (customizable)
Certification :
CE
Model Number :
customized
Packaging Details :
Standard Export Package
Delivery Time :
12~60 days depends on products type
Payment Terms :
T/T
Supply Ability :
2500 Ton/Tons Per Year
Description
A41 Series Spring-Loaded Micro-Opening Safety Valve
Overview

The A41 Series (A41H, A41F, A41Y) is a professional-grade Spring-Loaded Micro-Opening Safety Valve designed for superior overpressure protection. Engineered for reliability in piping systems and pressure vessels, these valves automatically release excess pressure to ensure the safety of your equipment and personnel.

Widely used across industries including power generation, chemical processing, oil & gas, and HVAC, the A41 series is the trusted choice for air, water, steam, and corrosive media.

Key Features & Benefits
  • Automatic Overpressure Protection: High-precision spring mechanism ensures immediate opening at set pressure and tight sealing once safety levels are restored.
  • Micro-Opening Design: Provides stable and controlled pressure relief, preventing sudden system shocks.
  • Enclosed Bonnet: Prevents leakage of the medium into the atmosphere, ensuring a clean and safe working environment.
  • Durable Construction: Available in Carbon Steel (WCB) and Stainless Steel (CF8/CF8M) for maximum longevity in harsh environments.
  • Corrosion Resistant: Special PTFE sealing and stainless steel internals are available for handling aggressive chemicals.
  • ISO/CE Certified Quality: Manufactured under strict quality control standards to meet international safety requirements.
Technical Specifications
Model Series Breakdown
Series Material Max Temp Recommended Media
A41H Carbon Steel (WCB) ≤ 300°C Air, Water, Steam, Oil
A41Y Stainless Steel (CF8/CF8M) ≤ 200°C Corrosive Acids, Alkalis, Chemicals
A41F Specialized Alloys -40°C to +80°C LPG, Natural Gas, Cryogenic Fluids
Performance Data
  • Nominal Pressure (PN): 1.6 MPa, 4.0 MPa, 6.4 MPa (PN16, PN40, PN64)
  • Set Pressure Range: 0.1 MPa to 6.4 MPa (Adjustable via spring)
  • Discharge Coefficient: Optimized for micro-opening performance
  • Reseating Pressure: ≥ 85% of Set Pressure
  • Sealing Pressure: 90% of Set Pressure
Main Parts & Materials
Part Name A41H Material A41Y Material A41F Material
Body / Bonnet WCB CF8 / CF8M WCB / LCB
Disc / Seat 13Cr Steel 304 / 316 Stainless 304 / 316 + PTFE
Stem 13Cr Steel 304 / 316 Stainless 304 / 316 Stainless
Spring 50CrVA (Coated) 50CrVA (Coated) 50CrVA (Plastic Coated)
Sealing Surface Metal-to-Metal Metal-to-Metal PTFE / Soft Seal
Dimensions

Standard connection: Flanged (ANSI, DIN, or JIS available upon request)

Sizes range from DN25 to DN200

Reference dimensions available upon request

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A41 Series Spring-Loaded Micro-Opening Safety Valve with H8 Bore Precision, Ra<0.4μm Surface Roughness, and 21 Bar Max Pressure

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Product Detail
Surface Roughness :
Ra<0.4μm
Bore Precision :
H8
Max Flow :
160 l/min (customizable)
Brand Name :
Guoyue
Place of Origin :
Jiangsu, China
MOQ :
1 piece
Contact Supplier
A41 Series Spring-Loaded Micro-Opening Safety Valve with H8 Bore Precision, Ra

Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd

Verified Supplier
1 Years
jiangsu, wuxi
Since 2022
Business Type :
Manufacturer
Main Products :
Custom Hydraulic Cylinder, Hydraulic Cylinder, Double Acting Hydraulic Cylinder
Total Annual :
20Million-50Million
Employee Number :
>50
Certification Level :
Verified Supplier
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