By resistance to influence of ambient air temperature and humidity, the gate valves correspond to NF, climatic category - 3, according to GOST 15150.
The gate valve bears a marking:
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on the front side of the body, in cast metal - working pressure, working temperature, nominal diameter, material of body parts;
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on the reverse side of the body, in cast metal - trademark of the manufacturer, year of manufacture, frame for gluing a self-destructive plate containing the factory serial number and the Euro-Asian conformity sign;
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on the flywheel - an arrow indicating the rotation direction when closing and opening the valve.
When released from production, all products are subject to 100% final inspection and assigned an individual serial number.

Габаритные, присоединительные размеры, мм | |||
Обозначение параметра | Тип задвижки | ||
МЗВГ-50 | МЗВГ-80 | МЗВГ-100 | |
DN | 50 | 80 | 100 |
D | 165 | 200 | 220 |
D1 | 125 | 160 | 180 |
D0 | 140 | 200 | 200 |
L | 150 | 180 | 190 |
B | 118 | 160 | 188 |
d | 18 | 18 | 18 |
n | 4 | 4 | 8 |
H | 323 | 406 | 463 |
h | 240 | 306 | 353 |