First, the dark rod soft seal gate valve Product Overview
The
soft seal gate valve with no cavity structure, the valve body cover the
inner and outer surface epoxy coating, the gate surface covered with
rubber, so fundamentally eliminate the possibility of corrosion occurs,
the valve Discard the filler at the rod seal and use "O" ring, making
the bees more reliable. According to need, this valve can be operated
lever, hand wheel, electric and pneumatic operation. For drinking water,
water supply and drainage, sewage treatment, natural gas and gas,
industrial and food industries.
Second, the dark bar soft sealing valve structure features
1,
overall rising stem valve cover design, compact structure; stem nut and
two gate structures, no jamming phenomenon; straight channel, leaving
no leakage cavity; stem is sealed with "O" ring.
2, with excellent corrosion resistance, the shell, the outer surface
of the epoxy coating, lining the inner surface when needed enamel; bolts
with hex bolts, the top of the plastic seal.
3, Reliable hygienic epoxy meets hygienic standard GB / T17219-1998,
the gate covers the whole rubber in conformity with hygienic inspection;
the stem, stem nut and other parts adopt stainless steel or bronze
which is not corroded by water until the material is reached.
Third, the dark rod soft seal the main parts of the valve material
| Serial number | name | material | Serial number | name | material |
| 1 | Body | Ductile iron | 8 | Thrust pad | Tin bronze |
| 2 | gate | Ductile iron coated EPDM | 9 | Sleeve | Tin bronze |
| 3 | bolt | Galvanized | 10 | bolt | Galvanized |
| 4 | Sealing ring | NBR | 11 | Shaft cover | Ductile iron |
| 5 | cap | Ductile iron | 12 | Dust cover | NBR |
| 6 | Valve stem | stainless steel | 13 | Handwheel | cast iron |
| 7 | "O" ring | NBR | 14 | Tighten the nut | Galvanized |
Fourth, the dark rod soft seal gate valve main dimensions of the connection
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 |
| HA | 313 | 332 | 372 | 424 | 497 | 562 | 680 | 837 | 948 | 1010 | 1220 | 1280 | 1480 | 1665 |
| HC | 355 | 375 | 415 | 476 | 540 | 600 | 720 | 875 | 990 | 1050 | 1245 | 1310 | 1560 | 1750 |
