303/383 Series ASME Filter Assemblies

The Ayater 303 Series ASME Simplex Filter Assembly is engineered to meet the rigorous demands of industrial hydraulic systems, where fluid cleanliness directly impacts equipment reliability and operational longevity. Designed, manufactured, and tested in full compliance with ASME BPVC Section VIII, Division 1 standards (with optional 'U' stamp certification), this filter assembly delivers unmatched contaminant removal capabilities while ensuring safety and durability in high-pressure environments.

Unlike conventional filters that compromise on flow rate or filtration efficiency, the 303 Series integrates Ayater's advanced pleated media technology with a spin-on construction-combining the convenience of easy replacement with the performance needed to trap 99.9% of particles as small as 3μm. This makes it an indispensable component for hydraulic systems in manufacturing, construction, agriculture, and mobile equipment, where even microscopic contaminants can cause valve sticking, pump wear, and costly downtime.

Ayater's commitment to quality is embedded in every aspect of the 303 Series. Each unit undergoes strict hydrostatic testing to ensure structural integrity, with carbon steel models featuring a dual-layer zinc primer exterior and rust-preventative interior coating, while 304L stainless steel variants offer superior resistance to corrosive fluids and harsh operating conditions. The assembly's sturdy frame is built to withstand pulsations, vibrations, and pressure spikes common in industrial settings, maintaining filtration performance even under extreme operational stress.

Maximum Working Pressure: Class 150 (260 psig / 18 bar) at 200°F (93°C); Class 300 (675 psig / 46.5 bar) at 200°F (93°C)

Temperature Range: -20°F to 200°F (-29°C to 93°C); 140°F (60°C) max for water-glycol or HWCF fluids

Filtration Precision: 3μm nominal rating (99.9% particle retention efficiency)

Flow Rate Capacity: Up to 150 GPM (570 LPM)

Port Sizes: 2", 3", 4" ANSI flange connections (custom sizes available upon request)

Housing Materials: Carbon steel (with corrosion-resistant coating) or 304L stainless steel

Seal Material: Buna-N (standard); Viton® or EPDM (optional for chemical compatibility)

Element Collapse Pressure: 150 psid (10 bar)

Hydrostatic Test Pressure: Class 150 (390 psig / 26.9 bar); Class 300 (1013 psig / 69.8 bar)

Maintenance Feature: Spin-on element design with anti-drain back valve to minimize fluid loss during replacement

ASME-Certified Safety: Complies with global pressure vessel standards, reflecting Ayater's adherence to strict quality and safety protocols-backed by ISO 9001:2015 certification for our manufacturing facilities.

Corrosion-Resistant Construction: Interior and exterior protective coatings (carbon steel models) or 304L stainless steel construction ensure long service life in humid, chemical-exposed, or outdoor environments.

Tool-Free Maintenance: Spin-on element design eliminates the need for specialized tools, reducing maintenance time by 40% compared to bolt-on filters-aligning with Ayater's focus on user-centric efficiency.

Advanced Pleated Media: Ayater's proprietary pleated filtration media maximizes surface area, delivering 2x higher dirt-holding capacity than standard cellulose filters and extending element service life.

Pressure Warning Device (PWD): Standard integrated PWD alerts operators to clogged elements, preventing system pressure drops and avoiding unplanned downtime- a feature developed from Ayater's 16+ years of industrial filtration expertise.