Pumps. Rotodynamic pumps. Glandless circulators. General requirements and procedures for testing and calculation of energy efficiency index (EEI)— 24 стр.
Specification for safety of household and similar electrical appliances. Particular requirements for stationary circulation pumps for heating and service water installations— 16 стр.
Pumps. Rotodynamic pumps. Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations. Non-automatic circulation pumps, requirements, testing, marking— 20 стр.
Pumps. Rotodynamic pumps. Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations. Non-automatic circulation pumps, requirements, testing, marking— 20 стр.
