Design Features:
1、 Ductile Iron body and bonnet for high strength and impact resistanc e . Valve Body and Bonnet Fusion bonded epoxy coating for long life corrosion protection. Straight through full bore to avoid debris traps, small flow resistance.
2、 Ductile Iron Wedge inside and outside fully rubberized with vulcanized EPDM or NBR ,suitable for potable water.
3、 Rubber bonnet gasket for longevity and protection of bonnet bolts, Isolated fasteners for corrosion protection.
4、 Stainless steel stem with rolling thread for high strength and corrosion resistance**.
5、 Back sealing facility to allow for replacement of seals under full operating pressure.
6、 Lower thrust washer to reduce friction.
7、 Ductile Iron Gland Thick Wall Casting, replaceable O rings.
8、 Dust Guard to prevent impurities from entering the stem sealing system.
9、 Brass bushing for alignment, low torque operation.
10、 Stem nut assembled downward.
11、Valve is supplied with hand wheel or bare shaft with square cap; Small operation torque, easy opening and closing.
Field of Application：
Size Range: DN40 and DN600
Maximum Temperature: 80˚C
Allowable Operating Pressure:PN10、PN16、PN25
Gate valve for use in irrigation, general utility services, HVAC and water systems
Features：
Outside stem and yoke (OS&Y)
Stem Seal with O-ring
Bolt bonnet, Full bore
Rubber encapsulated wedge, Brass Wedge Nut.
Fusion bonded epoxy coated inside and outside , blue RAL 5017 200 Micron thick
Working pressure from -1 to +16 Bar and working temperature from -10 to +80 ºC
Technical Specification：
Valve design according to EN 1171、BS5163、EN 1074-1 and 2
Face to face dimensions according to BS5163、EN 551-1 Series 13
Hydraulic test according to EN 12266、ISO5208
Standard flange drilling to EN 1092-2、ISO 7005-2
MATERIAL LIST
| Item No. | Part Name | Specification |
| 1 | Body | Ductile Iron EN- GJS- 500- 7 |
| 2 | Wedge | Ductile Iron EN- GJS- 500- 7 |
| 3 | Wedge Coating | NBR /EPDM EN 681-1 |
| 4 | Wedge Nut | Copper Alloy |
| 5 | Stem | Stainless Steel X20 Cr13 |
| 6 | O Ring Back Sealing | EPDM/NBR |
| 7 | Bonnet Gasket | NBR /EPDM EN 681-1 |
| 8 | Bonnet | Ductile Iron EN- GJS- 500- 7 |
| 9 | Packing Cork | Copper Alloy |
| 10 | O-Ring | EPDM/NBR |
| 11 | Parking O-Ring | EPDM/NBR |
| 12 | Gland Flange | Ductile Iron EN- GJS- 500- 7 |
| 13 | Yoke | Ductile Iron EN- GJS- 500- 7 |
| 14 | Stem Nut | Copper Alloy |
| 15 | HandWheel | Ductile Iron EN- GJS- 500- 7 |
