Soft seal dark stem gate valve

Soft seal dark stem gate valve

Product model: Z45X

Nominal diameter: DN50~1200mm

Nominal pressure: PN1.0~2.5MPa

Working temperature: 0~120℃

Applicable medium: water

Drive mode: manual, electric, pneumatic, etc.

Flange standard: GB/T 17241.6, GB9113

Test standard: GB13927, API598


Product overview

The Non rising stem elastic seat sealed gate valve adopts a cavity free structure. The inner and outer surfaces of the valve body and bonnet are sprayed with epoxy resin, and the surface of the ram is coated with rubber, which fundamentally eliminates the possibility of corrosion. The packing is discarded at the valve stem seal and the "O" ring is used, making the bees more reliable. As required, the gate valve can be operated by operating lever, handwheel, electric and pneumatic methods. It is applicable to drinking water, water supply and drainage, sewage treatment, natural gas and gas, industry, food and other industries.


Structural features

1. The overall valve cover is designed with a dark stem, and the structure is compact; the stem nut and the gate are two-body structure, no jamming phenomenon occurs; the straight channel has no leakage cavity; the stem seal adopts an "O"-shaped sealing ring.

2. It has excellent anti-corrosion performance. The inner and outer surfaces of the shell are sprayed with epoxy resin, and the inner surface is lined with enamel when necessary.

3. The reliable hygienic epoxy resin conforms to the hygienic standard GB/T17219-1998, and the gate plate is entirely covered with rubber that conforms to hygienic inspection; the valve stem, stem nut and other parts are made of stainless steel or bronze that is not corroded by water.


Main part material

No. Name Material No. Name Material
1 Body Ductile Iron 8 Thrust pad Tin bronze
2 Gate Ductile iron covered with EPDM 9 Bushing Tin bronze
3 Bolt Galvanized 10 Bolt Galvanized
4 Sealing ring NBR 11 Axle cover Ductile Iron
5 Bonnet Ductile Iron 12 Dust cover NBR
6 Stem Stainless steel 13 Handwheel Cast iron
7 "O" ring seal NBR 14 Fastening nut Galvanized


Main external connection dimensions

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


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