Fire Fighting Gate Valves NRS Type-Flanged Ends

Description

Fire Fighting Gate Valves NRS Type-Flanged Ends

 

 

 

DIMENSIONS (MM/INCH)
SIZE	mm	50	65	80	100	125	150	200	250	300
	inch	2″	2-1/2″	3″	4″	5″	6″	8″	10″	12″
L	mm	178	191	203	229	254	267	292	330	356
	inch	7	7.5	8	9	10	10.5	11.5	13	14
H	mm	279	279	305	324	394	428	537	640	723
	inch	10.98	10.98	12.01	12.76	15.51	16.85	21.14	25.2	28.26
D	mm	305	305	305	305	305	305	305	305	305
	inch	12.01	12.01	12.01	12.01	12.01	12.01	12.01	12.01	12.01

Product Description

The valves disc is rubber-packed to get excellent sealing effect by the rubber’s resilient deformation. Non-rising resilient seated gate valves solve the problem in general gate valves such as leakage, rusting etc. and saves installation space. It is used widely in tap water industry, sewage treatment, shipping construction, petroleum, chemicals, food, pharmacy, textile, electric power, metallurgy and energy system’s pipeline to adjust and shut off fluids.

Characteristics:
1. The seal is designed with dustproof ring plus three “O”-seal ring, reliable sealing, on-line replaceable.
2. Both gate and aluminum bronze bearing are in in aid design good self lubrication, high strength and can have the aluminum bronze bearing replaced without need to replace the gate integrally, after a long time use.
3. Rubber wrapped gate anti-corrosion, good tightness.
4. Advanced surface treatment, coated with non-toxic epoxy resign static powder, anti-corrosion, pollution-free, can be used drinking water pipeline.
5. The body is designed without gate slot, the smooth passage will not get impurities filling up , more applicable for sewage working condition.
6. The integral seal works raliably. For the high pressure seal, leaving zero leakage under1.5 times nominal pressure and ,for the low pressure one ,under 0.02Mpa.

Additional information

Size	DN50-300
Pressure	200/250/300PSI
Body	Ductile Iron, A536 65-45-12
Wedge Disc	Ductile Iron EPDM coated
stem	stainless steel AISI 304/420
Bonnet	Ductile Iron A536 65-45-12