Industrial check valves

Swing Type Flanged Industrial Non-Return Check Valve — 19ч21р / 19с53нж

Automatically blocks pipeline flow reversal instantly. Solid self-actuating mechanical lever-disc protection for municipal pump chambers, extraction systems, and storage basins.

DN
Ду15 ~ Ду1000
PN
Ру1.0 ~ Ру6.4 МПа
Temperature
≤ 400°C
Material
Premium Ductile Cast Iron / Medium Alloy Carbon Steel
Reference standard
ГОСТ 13252

Configuration features

  • Gravity-assisted soft automatic closure avoids clatter damage
  • Can be mounted securely in vertical rising as well as horizontal spans
  • Thick fluid walls absorb downstream pipeline vibration surges

Verification before ordering

This page describes a base model configuration. Before purchase, engineering must verify the medium, design pressure and temperature, flow direction, body and trim materials, flange execution, face-to-face dimension and actuator requirements. The published ranges do not mean that every combination of DN, PN, material and temperature is available simultaneously. The exact execution, production lead time and acceptance-document schedule are fixed in the technical quotation. Export projects also require agreement on applicable standards, testing, material traceability and destination-market regulatory requirements.

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Industry applications

Engineering resources