Stanless Steel, Carbon Steel Wafer Type Single Plate Check Valves

Our Stainless Steel & Carbon Steel Wafer Type Single Plate Check Valves are engineered to deliver reliable, maintenance‑free backflow protection across a wide range of fluid‑handling applications. Designed for compact installation and high performance, these wafer check valves employ a single‐disc (or “swing”) mechanism that opens fully under forward flow and snaps shut at flow reversal, preventing potentially damaging reverse flow.

Key Features & Benefits

• Compact Wafer Design: The thin, lightweight wafer body allows installation between standard ANSI/BS/DIN flanges without requiring extra longitudinal space. This minimizes piping footprint and reduces material costs.

• Single Plate (Swing) Mechanism: A single disc mounted on a hinge pin rotates freely with minimal friction, ensuring fast response to flow changes. Its snap‐shut action protects upstream equipment from water hammer and backflow surges.

• Dual‐Material Options:

  • Stainless Steel (SS 304/316): Ideal for corrosive, hygienic, and sanitary processes (food & beverage, pharmaceuticals, desalination). Outstanding resistance to pitting, crevice corrosion, and high‐temperature environments up to 425 °C (SS 316).

  • Carbon Steel (WCB/CS): Suited for general industrial services (oil & gas, petrochemical, power generation). Offers excellent strength, toughness, and cost efficiency for temperatures up to 425 °C.

• PTFE/RTFE Soft Sealing: The valve disc seats against a precision‐molded, resilient PTFE seal ring for bubble‐tight shutoff. This low‑friction lining extends service life and ensures zero leakage in critical applications.

• Robust Hinge & Pin Assembly: Precision‐machined hinge pins (17­‑4 PH for SS valves; stainless steel for CS) and reinforced bushings deliver smooth disc movement and long‑term durability, even under cyclic loading.

• High Pressure Ratings: Available in PN 10/16/25 (for sizes DN 15–300) and ANSI Class 150/300 (for sizes ½″–12″), these valves handle a broad pressure spectrum with minimal pressure drop.

Technical Specifications

• Sizes: DN 15 (½″) up to DN 300 (12″)

• Pressure Class: PN 10/16/25; ANSI 150/300

• Body Materials: CF8/CF8M (SS 304/SS 316); WCB (Carbon Steel)

• Disc Materials: Matching body grade or optional SS 316 for enhanced corrosion resistance

• Seal Materials: RTFE/PTFE standard; optional metal‐to‐metal for high‐temperature service

• End Connections: Wafer type between flanges; optional lug style for dead‐end service

• Test Standards: API 6D, ISO 5208, EN 12266

Applications

• Water & Wastewater Treatment

• Power Generation (Steam & Cooling Water Lines)

• Oil & Gas (Refinery Piping, Offshore Platforms)

• Chemical Processing (Corrosive Liquids & Gases)

• HVAC & Fire‐Protection Systems

Why Choose Kelor Valves?

1. Premium Quality Manufacturing: Every valve is cast in certified foundries, CNC‑machined to exacting tolerances, and subjected to 100% hydrostatic and seat leakage tests.

2. Custom Engineering Support: Our application engineers help you select the optimal valve configuration—material, seal, and hinge assembly—to suit your process conditions.

3. Global Compliance: Kelor Valves single plate check valves meet or exceed international standards (API, ANSI, BS EN), ensuring interoperability in global projects.

4. After‑Sales Service: We provide comprehensive technical documentation, installation guidance, and on‑site commissioning support. Spare parts kits are stocked regionally for rapid turnaround.

Installation & Maintenance Tips

• Orientation: Install the valve with the hinge pin horizontal to ensure consistent disc seating and minimize wear.

• Flow Direction: Observe the arrow cast on the body to align with system flow.

• Periodic Inspection: Although maintenance‐free for most services, we recommend visual checks every six months. In abrasive or slurry services, more frequent inspections will extend valve life.

• Spare Parts Availability: Hinge pins, bushings, and soft seals can be replaced in‑line with minimal downtime—no special tools required.

With their space‑saving profile, swift response, and robust materials, our Stainless Steel and Carbon Steel Wafer Type Single Plate Check Valves deliver peace of mind in demanding fluid‑control systems. Trust Kelor Valves to keep your process flowing forward—never backward.