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Provide unidirectional flow and tight shut-off for liquids and gases with high reliability. When differential drops below cracking pressure*, valve shuts off. (Not for use as relief valve.)

Materials: 316 Stainless Steel: body, cover, poppet and cover gland. 300 Series Stainless Steel: spring Standard O-ring: Viton, for operation to 500° F (260°C). Buna-N or Teflon available for 250°F (121°C) or 400°F (204°C) respectively; specify when ordering.

*Cracking Pressure: 20 psi (1.38 bar) ±30%. Springsmore
Unit of Measure

Fits Connection Type

QS750

Pressure Rating

15000 psi1034.20 bar

Orifice

0.516 in13.11 mm

Rated Cv

4.70

A - Length

6.40 in162.56 mm

B - Length

5.50 in139.70 mm

C - Length

1.03 in26.16 mm

D - Typical Hex

1.5 in38.1 mm

HEX

1.88 in47.75 mm

Tubing Engagement Depth

1.00 in25.4 mm

Note

Dimension HEX is distance across flats.