Non-rising Stem Rubber Gate Valve

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Specifications

Specifications:
Size:DN50—DN1000
Nominal Pressure: PN10/PN16
Working Temperature: -10°C~120°C
Suitable Medium: Chemicals,air,water,steam,oil, acids,salts,etc
Standards:
Design standard: DIN3352 F4/F5, AWWA C509/515, BS5163
Face to Face: DIN3202 F4/F5, BS5163
Flange Drilling: DIN2533 PN10/PN16, ANSI 125/150,JIS10K
Test Inspection: DIN3230, BS6755,API598
Materials:
Body:Ductile Iron
Disc: Ductile Iron+Rubber
Stem:Stainless steel
Sealing Ring: NBR, EPDM
O ring: NBR,EPDM

Q: What type of flange does it fit with the gate valve?: According to the welding plate flange, flange material selection of piping material.

Q: What does gate valve Z41H-40 mean?: Z - that means gate valve (the initial letter of Zha)4---- is the connection form, which means flange connection1---- form of structure, which means Plain Bar wedge type rigid single gate valveH---- sealing surface overlaying ferrous carbide (initial letter of alloy steel He)40---- nominal pressure is 40 kg, or 4.0MPa, that is, PN10 at 250 degrees Celsius, the maximum working pressure is 40 kgThe material is cast carbon steel

Q: Z45T-10 what kind of material is the gate valve?: JB/T 308 regulation3.7.4 nominal pressure of less than 1.6Mpa gray cast iron valve body material code, in the type of preparation to be omitted.So its body material is gray cast iron, the sealing surface is copper alloy

Q: What are the features and uses of the gate valve?: 1) advantages: sealing performance than the cut-off valve, the fluid resistance is small, open and close more effort, full sealing surface by the erosion of media, media flows from the restrictions, with double flow, small structure length, wide application range. 2) disadvantages: high size, open need a certain space, opening and closing time is long, in the opening and closing, the sealing surface is easy to erode and scratch, and the two sealing pairs bring difficulties to the processing and maintenance.3) use: gate valve is generally used in the caliber of DN15-1800mm pipes and equipment, and its dosage is great, mainly cutting off function, not allowed to throttle.

Q: Gate valve type Z40Y, Z40H letters - what does that mean?: According to the provisions of the JB/T 308-2004 valve type programming method:Z== gate valve4== connection: flange0== structure: wedge type elastic RAMY== sealing surface material: hard alloyH== sealing surface material: Cr13 stainless steel

Q: What's the difference between open rod gate and dark rod gate valve?: 3, dark rod valve is located inside of the body, in the process of opening and closing, stem only rotation move, the gate in the valve body lifting; the valve stem rod driven gate valve with the valve stem of the lifting drive thread in the external body, according to the direction of movement of the stem and the position of judge the gate opening and closing and position;

Q: Is the gate valve clockwise or closed?: In general, the valve is clockwise turn off, in the case of special requirements under the opening.

Q: What does gate valve do?: Like other valves, the gate valve is used to block fluid flow. Is the gate valve opening and closing parts, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle.

Q: Yes, soft sealing gate valve can reach 25 kilograms, Fujian light valve company has this type of soft sealing gate valveAnonymous browsing | 28 times: Soft seal butterfly valve seal is good, but can only withstand up to 16 pressure, or the plastic can not stand. A short period of time is OK, and it's also related to the workmanship and quality of the factory. The quality is poor.

Q: What is the difference between gate valve 41h-16c and 41w-16p?: According to the provisions of the JB/T 308-2004 valve type programming method:H== sealing surface material: Cr13 stainless steelC== body material: carbon steelW== sealing surface material: body, that is, with the same material bodyP== body material: chrome nickel stainless steel

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