Safety Valve
Safety Valve
Safety Valve
Safety Valve
Safety Valve

Stainless Steel Crosby Hydraulic Pressure Safety Relief Valve

JN-SFTV23-1003-3
Size: DN15–DN100.
Grade: SS304/SS316.
Standard: DIN, ANSI, ISO.
Working pressure: up to 40 bar.
Test pressure: 1.5× rated pressure.
Temperature Range: -20°C to 200°C.
PTFE seals: high chemical resistance.
Viton seals: excellent oil and heat resistance for hydraulic systems.
Quantity:
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Stainless Steel Crosby Hydraulic Pressure Safety Relief Valve

Stainless Steel Crosby Hydraulic Pressure Safety Relief Valve is a high-performance overpressure protection valve designed forhydraulic oil pipelines and high-pressure fluid systems. It is typically installed at the pump outlet, pressure vessel connection, or critical control node where pressure spikes are most likely to occur. At this position, it functions to automatically release excess hydraulic pressure, stabilize system operation, and prevent damage to pumps, cylinders, and pipelines. Built with stainless steel construction, it ensures durability in demanding environments. Types includespring-loaded type, pilot-operated type, adjustable set-pressure type, and high-capacity discharge type,meeting various industrial hydraulic protection requirements.

Compared with ordinary safety valves,Stainless Steel crosby valve is specifically engineered for high-pressure hydraulic oil systems,offeringmore precise set-pressure control, faster response to sudden pressure spikes, and superior sealing stability under continuous load conditions.Standard safety valves are generally designed for steam, gas, or low-viscosity fluids, while our valve is optimized for hydraulic media with higher density and system back pressure requirements. Compared with other manufacturers, our products feature high-grade stainless steel construction, precision CNC machining, strict pressure calibration testing, enhanced fatigue-resistant spring systems, and customizable pressure ranges, ensuring longer service life, improved operational reliability, and safer hydraulic system protection.

 

Accessories

 Component & Material Table
  • Valve Body: Stainless steel 304 / 316 / 316L (for corrosion resistance)
  • Bonnet/Cap: Stainless steel 304 / 316
  • Valve Disc / Poppet: SS316 or hardened stainless steel
  • Spring: Stainless steel 304 / 17-7PH alloy steel
  • Seat: SS316 with precision-machined sealing surface
  • Sealing Elements: PTFE / Viton (FKM) / EPDM
  • Adjustment Screw: Stainless steel with anti-loosening lock nut
Product Parameter Details
  • Material：Body and internal components in SS304 / SS316L; spring in stainless steel; seals in PTFE, EPDM, or Viton; all materials suitable for hygienic processes.
  • Structural Form：Spring-loaded pressure relief with integrated vacuum breaker; optional combined pressure/vacuum structure; dead-leg-free sanitary design; optional insulated or jacketed body.
  • Pressure Rating：Low to medium pressure range (e.g., 0.1–10 bar adjustable); vacuum protection sensitivity calibrated per tank requirement; factory pressure tested.
  • Function：Automatic overpressure release and vacuum compensation; surge protection; tank deformation prevention; sterile process safety assurance.
  • Grade Level：Sanitary grade for food, beverage, dairy, and pharmaceutical; optional industrial chemical grade.
  • Specification Standards：DIN, SMS, ISO, 3A, ASME BPE clamp or flange standards for global hygienic pipeline compatibility.
  • Certification / Registration：Optional FDA-compliant seals, 3A certification, material traceability, pressure testing and safety compliance documentation.
  • Installation Direction：Typically installed vertically on tank tops; horizontal installation optional depending on design; drainage-friendly configuration.
  • Customization：Adjustable pressure settings, customized sizes, special seal materials, connection types, and sample-based OEM production available.
Stainless Steel Crosby Hydraulic Pressure Safety Relief Valve
 
Feature (F)、Advantage (A)、Benefit (B)
  • Raw Material:
  • F:Premium 304/316L stainless steel hygienic valve body; precision-balanced pressure disc; FDA-approved EPDM/PTFE/FKM sealing components
  • A:Outstanding corrosion and oxidation resistance; hygienic-grade material purity; stable performance under pressure fluctuation
  • B: Ideal for food, beverage, dairy & pharmaceutical tank systems; protects product integrity and prevents secondary contamination
  • Processing Technology:
  • F:Internal electrolytic polishing (Ra ≤ 0.6 μm); CNC-machined valve seat; fully enclosed spring chamber; crevice-free sanitary design
  • A: Smooth surface reduces residue buildup; accurate pressure response; enhanced structural durability; compatible with CIP/SIP cleaning
  • B: Minimizes cleaning downtime; improves production efficiency; ensures long-term stable protection of storage vessels
  • Structure Feature:
  • F: Dual-function design integrating positive pressure relief & vacuum breaker; spring-loaded overpressure mechanism; gravity-assisted vacuum plate; clamp or welded connection optional
  • A: Automatic response to sudden pressure surge or vacuum formation; precise resealing after discharge; compact hygienic configuration
  • B: Prevents tank rupture or collapse; stabilizes internal vessel pressure; supports safe continuous process operation
  • Core Accessory Feature:
  • F: Calibrated stainless steel compression spring; precision-guided pressure stem; reinforced seat alignment structure
  • A:Accurate set-pressure control; fast opening under surge conditions; consistent resealing without leakage
  • B:Enhances safety reliability; reduces pressure fluctuation risk; extends equipment lifespan and lowers maintenance frequency
  • Seal Ring Feature:
  • F:High-elastic sanitary-grade sealing ring with steam-resistant formulation; anti-aging & wear-resistant structure
  • A: Excellent airtight performance; stable elasticity after repeated sterilization cycles; wide temperature adaptability
  • B:Suitable for -20℃~150℃ working environments; prevents gas or vapor leakage; maintains safety compliance in hygienic processing systems
 
Stainless Steel Crosby Hydraulic Pressure Safety Relief Valve
 
Connection Type: Sanitary clamp, flange (DIN / ANSI / SMS / ISO), threaded, or welded connections for tank and pipeline installation.
Manufacturing Process: CNC precision machining, sanitary welding, laser cutting, precision turning, and forming processes to ensure dimensional accuracy and smooth sealing surfaces.
Surface Treatment: Mechanical polishing, mirror polishing (Ra≤0.8μm or Ra≤0.4μm optional), electrolytic polishing, passivation, or matte industrial finish.
Raw Material Processing: Forged stainless steel body, precision casting components, rolled plate forming, or solid bar machining depending on pressure requirements.
Operation Method: Automatic spring-loaded operation standard; optional pneumatic-assisted or manual test lifting mechanism available.
Seal Material Options: PTFE, EPDM, Viton (FKM), Silicone, and FDA-compliant hygienic sealing materials.
Sealing Structure: Center soft sealing design standard; optional metal hard sealing or dual-seal structure for enhanced pressure and vacuum protection performance.
 
 
 

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