A flanged wafer type check valve is a non-return valve designed to fit between two ANSI B16.5 flanges. It uses a hinged disc or split disc that opens with forward flow and closes automatically when flow reverses, preventing backflow. The "wafer" design means it has a short face-to-face dimension, making it lighter and more compact than full-flanged check valves. It's ideal for water, oil, gas, steam, and chemical applications where space and weight are constraints.

The key difference is design and installation. A swing check valve has a full body with flanged ends and a disc that swings on a hinge — it's bulkier, heavier, and requires more space. A wafer check valve (including flanged wafer type) sits between flanges, has a shorter face-to-face length, and is 30–50% lighter. Wafer check valves also tend to close faster, reducing water hammer. For most industrial applications, a flanged wafer check valve offers better value and easier installation.

We offer 2" to 24" in standard stock, with custom sizes up to 36" available. Pressure classes include Class 150, 300, 600, and 900 (PN16 to PN160). For higher pressure requirements, we can engineer solutions up to Class 2500 on request. All valves are designed per API 594 / ASME B16.34.

Yes, absolutely. Every order includes material test reports (MTRs) for body, disc, and seat materials, plus a hydrostatic and pneumatic test certificate per API 598. We also provide flange drilling templates, NDE reports (RT/UT/MT) if required, and full traceability from melt to final assembly. 100% documentation included.

For standard sizes (2"–12", Class 150/300), our lead time is 20–30 working days. For larger sizes or higher pressure classes, typically 30–45 working days. We also offer express delivery (10–15 working days) for urgent orders — just contact our sales team. Shipping to US ports takes approximately 20–25 days by sea, or 5–7 days by air for smaller quantities.

Yes, we offer free samples to qualified buyers. You pay only the shipping cost. We'll send you a fully tested flanged wafer check valve in your required size and material — no minimum order quantity (MOQ) for samples. This lets you evaluate our quality, documentation, and packaging firsthand. Request your free sample today.

We use heavy-duty plywood crates reinforced with steel strapping, with individual foam cradles for each valve. Each crate is designed for ocean freight and can be stacked. In the last 700+ shipments to North America, we've had zero damage claims. We also insure every shipment for full value.

Absolutely. Our engineering team has 15+ years of valve design experience. We can customize: end connections (special flange drilling, NPT, BW, SW), materials (Duplex, Hastelloy, Monel, Titanium), seat type (metal, soft, high-temp), spring settings, and even integrate smart position indicators. Prototypes in 15–20 days. Just send us your drawing or specification.

We accept T/T (wire transfer), L/C (irrevocable letter of credit), and Western Union for smaller amounts. For first-time US customers, we offer proforma invoice with 30% deposit, 70% against copy of shipping documents. We also have US-based representation to facilitate payment coordination. No hidden fees.