HEIMEIER return valve, housing made of corrosion-resistant, dezincification-resistant gunmetal. Heating circuit connection, external thread G 3/4, conical sealing, in conjunction with compression fittings for plastic, copper, precision steel, or multi-layer pipes. With shut-off and fine adjustment via double cone without stroke limitation. No change in presetting when opening or closing. Screw cap with flat seal. Permissible operating temperature TB 120 deg. C. Permissible operating overpressure PB 10 bar. Make: IMI Heimeier, Design: Gunmetal, straight-through form, manifold-side connection: internal thread Rp 1/2, Item No. 0402-02.000
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