NVD series semi-submersible vertical motor pumps

DESIGN FEATURES AND SCOPE OF APPLICATION:

• recommended for updating items associated with pumps NV, NV-E, 12 NA9x4, etc;
• principal application is handling impure water and petroleum products (and mixtures thereof) with viscosity up to 100 cSt from underground drainage vessels;
• volume content of solid inclusions in handled media up to 3%, size up to 10 mm;
• working temperature: –60° to +80°С;
• immersion depth up to 9 m;
• no need for maintenance and control, including additional protective automation;
• stationed outdoors without sheds (climatic version CT1);
• fitted with explosion-proof motor;
• immersible part and liquid end materials – 35ХМЛ (C 0.35% max, Cr, Mo) and 09Г2С (C 0.9%, Mn up to 2%, Si);
• two end face mechanical seals with an intermediate chamber filled with barrier fluid;
• control device detecting barrier fluid leakage from the chamber between the mechanical seals;
• leak-proof “dry” column with ball-bearing supports filled with lubrication;
• manufactured in accordance with TDFA.062621.100.TU specifications;
• compliant to the Customs Union Technical Regulations TR TS 004, 010, 012.

Innovative solutions and original design of the NVD semi-submersible pump are protected by the RF Patent.

included in the JSC TRANSNEFT Technical Specifications and Infrastructure Upgrade Project.

	IMMERSIBLE PARTS AND LIQUID END MATERIALS: 35ХМЛ steel (C 0.35% max, Cr, Mo); 09Г2С steel (C 0.9%, Mn up to 2%, Si).		Overall and coupling dimensions of the baseplate according to GOST 12815 DN 600…1,000 mm, standard PN 0.6 MPa, custom versions PN up to 1.6 MPA, sealing surfaces versions 1-5.