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Ductile Iron Non Rising Stem Flange Type Gate Valve

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Product Origin:China Shipping Port:Xiamen Lead Time:15-20days Payment:TT, LC Size::DN50 - DN200 Material::Ductile Iron Working Pressure::1.6MPa Type::Flange Non Rising Stem Gate Valve

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Detailed introduction

There is no upward movement of the stem in a non-rising stem type. The valve disk is threaded internally. The disc travels along the stem like a nut when the stem is rotated. You can see the image. In this type of valve, stem threads are exposed to the flow medium. Therefore, this design is used where space is limited to allow linear stem movement, and the flow medium does not cause erosion, corrosion, or wear and tear to stem material. This type of valve also known as insider screw valve.

Gate Valve Applications

Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services.

Some special gate valve is used in slurry and powder product also such as knife gate valve

Advantages of Gate Valve

Gate valve provides good pressure drop during operation

Most of the gate valve can be used as bi-directional

They are suitable for high pressure and temperature application and required less maintenance

Product Parameter

DN	L	H	H1	W	C	n-D50	E	T	F
50	178	233	123	203	125	4-φ19	165	19	3
65	190	233	93	203	145	4-φ19	185	19	3
80	203	270	100	203	160	8-φ19	200	20	3
100	229	322	110	203	180	8-φ19	220	20	3
125	254	355	125	280	210	8-φ19	250	20	3
150	267	401	143	280	240	8-φ19	285	20	3
200	292	516	170	330	295	8-φ23	340	21	3
250	330	638	203	382	355	12-φ23	406	26	3
300	356	717	230	420	410	12-φ28	460	26	4
350	381	844	260	420	470	16-φ28	520	26.5	4
400	406	935	282	420	525	16-φ31	580	28	4