Cast iron fittings with rubber seals are designed to connect cast iron and steel pipes in cold water supply systems at temperatures from 5 to 90°C and pressures up to 1.0 MPa (10 kgf/cm²).
By resistance to influence of ambient air temperature and humidity, the units correspond to NF, climatic category - 3, according to GOST 15150.
When released from production, all products are subject to 100% final inspection and assigned an individual serial number.

Specification
Designation |
DN | D | D1 | Dн | L | l | d | Amount n, pcs. | ||
min | max | min | max | |||||||
PFRK-50 | 50 | 160 | 125 | 60 | 65 | 220 | 17 | 38 | 18 | 4 |
PFRK-65 | 65 | 180 | 145 | 76 | 81 | 220 | 18 | 39 | 18 | 4 |
PFRK-80 | 80 | 195 | 160 | 89 | 98 | 230 | 19 | 40 | 18 | 8 |
PFRK-100 | 100 | 215 | 180 | 108 | 118 | 230 | 22 | 45 | 18 | 8 |
PFRK-150 | 150 | 280 | 240 | 166 | 170 | 265 | 24 | 65 | 22 | 8 |
PFRK-200 | 200 | 335 | 295 | 218 | 222 | 265 | 29 | 75 | 22 | 8 |
PFRK-250 | 250 | 390 | 350 | 270 | 274 | 275 | 31 | 70 | 22 | 12 |
PFRK-300 | 300 | 440 | 400 | 322 | 326 | 275 | 35 | 70 | 22 | 12 |
PFRK-400 | 400 | 565 | 515 | 424 | 429 | 335 | 40 | 115 | 26 | 16 |
PFRK-600 | 600 | 780 | 725 | 630 | 635 | 435 | 40 | 115 | 30 | 20 |