DIN3352-F4 NRS Brass Gland Resilient Seated Gate Valve, DN50-DN600 Features ² The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. ² Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. ² Stainless steel stem with rolled threads for high strength. ² The valve can replace stem seals under pressure. ² Full bore. ² Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.   Standard

Design standard	DIN3352 F4, EN1171
Flange drilling standard	EN1092-2 PN10/PN16
Face to face standard	EN558-1 Series 14
Hydraulic test standard	EN1074-1 and 2 /EN12266
	Seat:1.1*PN(in bar), Body:1.5*PN(in bar)

    Technical Parameters

Nominal diameter(mm)		40～600	40～600
Nominal pressure(Mpa)		1.0	1.6
Testing pressure	Shell(Mpa)	1.5	2.4
	Seal(Mpa)	1.1	1.76
Suitable temperature		-40°C～150°C
Suitable medium		Drinking water、sewage、seawater、irrigation,or other neutral liquid.

  Main Raw Material

1	Body	Ductile Iron	9	Top-nut	Brass
2	Wedge	Ductile Iron+EPDM	10	Washer	PTFE
3	Stem	Stainless steel	11	Thrust collar	Brass
4	Wedge Nut	Brass	12	Washer	PTFE
5	Bonnet	Ductile iron	13	Dust Cover	NBR
6	Bonnet gasket	EPDM rubber	14	Handwheel	Ductile Iron
7	Bonnet	Ductile Iron	15	Bonnet bolt	Steel gr.8.8
8	O-ring	EPDM rubber