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BS5163 rising stem soft seal gate valve

Features: Size: DN50-DN300
Pressure Rating: PN16/PN25
Material: Ductile Iron/Cast Iron
Design Standard: BS 5163
Inspection Standard: EN558
Application medium: Drinking water or other neutral liquid
Application Temperature: -10C°-80C°

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What is a rising stem gate valve?

A rising stem gate valve is a fluid control valve that effectively controls the flow of fluid in a pipeline. Gate valves have the advantages of fast fluid shut-off, simplicity, reliability, and ease of maintenance. The gate valve has a flat, rectangular, or trapezoidal-shaped valve plate and is free to move within the grooves of the gate body to control the fluid in the pipeline by raising and lowering the valve plate. The rising stem gate valve is a fluid control valve that has a distinct trajectory of action, so called because the actuator such as a lever or handwheel rises and falls distinctly when opening and closing the valve.

DN	L(F4)	L(BS)	D1	D2	D3	H	N-øD
							PN10	PN16
50	150	178	99	125	165	220	4-ø19	4-ø19
65	170	190	118	145	185	240	4-ø19	4-ø19
80	180	203	132	160	200	290	8-ø19	8-ø19
100	190	229	156	180	220	330	8-ø19	8-ø19
125	200	254	184	210	250	375	8-ø19	8-ø19
150	210	267	211	240	285	420	8-ø23	8-ø23
200	230	292	266	295	340	500	8-ø23	12-ø23
250	250	330	319	355	405	610	12-ø23	12-ø28
300	270	356	370	410	460	720	12-ø23	12-ø28

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Standards&Features:

Rising stem gate valves have the following advantages:

Easy to install and maintain:

The relatively simple structure of the rising stem gate valve makes it easier to install and maintain.

Low flow resistance:

The valve does not have any internal protrusions, and the resistance of the flow pipe is relatively small.

Good sealing:

The sealing surface is flat and the sealing performance is good, there will be no air leakage, liquid leakage, and so on.

Wide range of applications:

The rising stem gate valve is suitable for a variety of media, temperatures, pressure, pipe diameter, and other occasions.

High reliability:

As it is the gate plate lifting to control the fluid flow, it will not be eroded or polluted by the medium and has a long service life.

Difference of non-rising stem gate valve and rising stem gate valve:

1. The stem of the rising stem gate valve is exposed and can be seen, while the stem of the non-rising stem gate valve is in the valve body and cannot be seen.　

2. The rising stem gate valve is driven by the threaded drive of the stem and the steering wheel, thus driving the gate up and down; the non-rising stem gate valve is driven by the rotation of the stem at a fixed point to drive the gate up and down, and the steering wheel and the stem are connected together in a relatively immobile manner when switching.　

3. The transmission thread of the non-rising stem gate valve is located inside the valve body, in the process of opening and closing the valve, the stem only does rotational movement in situ, and the naked eye cannot judge the opening and closing state of the valve; while the transmission thread on the stem of the rising stem gate valve is exposed on the outside of the valve body, which can intuitively judge the opening and closing of the gate and its position.　　

4. The height of the non-rising stem gate valve is small and the installation space is relatively small; the height of the rising stem gate valve is larger when it is fully open and requires a larger installation space.

5. The stem of the rising stem gate valve is outside the valve body, which is conducive to maintenance and lubrication; the stem of the non-rising stem gate valve is threaded inside the valve body, which makes maintenance and lubrication difficult, and the stem is susceptible to direct erosion by the medium, and the valve is easily damaged. In the scope of use, the rising stem gate valve is more extensive.

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