Henan Lianghe Pipeline Equipment Co.,Ltd
                                                                                                           
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23 Years
Since 2003
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DN200 8 Inch Non-Rising Stem Ductile Iron Gate Valve with 400mm Length and 335mm Flange Diameter

Price Negotiable
Price: $19.8-$308
MOQ: 1 set
Delivery Time: 5-12 word days
Brand: Lianghe
Product Description
DN200 8 Inch Non-Rising Stem Resilient Seated Gate Valve
DN200 8 Inch Non-Rising Stem Resilient Seated Ductile Iron Handwheel Flanged Gate Valve product image
Gate valves control media flow by lifting the gate open and lowering it closed. The straight-through unobstructed passageway provides minimal pressure loss. The clear bore allows pig passage for pipe cleaning procedures, unlike butterfly valves. Available in various sizes, materials, temperature and pressure ratings, and gate/bonnet designs.
Close-up view of DN200 gate valve handwheel and flange connection
Concealed Stem Gate Valve Advantages
Triple O-ring seal: Valve stem uses triple O-ring seals for easy operation without leakage
Flat bottom valve seat: Prevents debris and sludge accumulation, ensures fluid channel remains unobstructed
Full rubber coating: Complete rubber coating enhances sealing performance and extends service life
Lightweight construction: Made from ductile iron, lighter than traditional gate valves
Corrosion resistance: Non-toxic epoxy resin coating suitable for drinking water and sewage systems
Gate Valve Installation Guidelines
Install according to design specifications for position, height, and direction with secure connections
Manual valve handles on insulated pipelines should not face downward
Pre-installation inspection required with nameplate compliance to GB 12220 standard
Handwheels, handles, and transmission mechanisms should not be used for lifting and must be protected from impact
Follow manufacturer instructions for valves with driving mechanisms
Non-Rising Stem Gate Valve Technical Specifications
Technical drawing and dimensional diagram of non-rising stem gate valve structure
DN NPS (INCH) L D D1 Z-φD
50 2" 250 160 125 4-18
65 2 1/2" 265 180 145 4-18
80 3" 280 195 160 8-18
100 4" 300 215 180 8-18
125 5" 325 245 210 8-18
150 6" 350 280 240 8-22
200 8" 400 335 295 12-22
250 10" 450 405 355 12-26
300 12" 500 460 410 12-26
350 14" 550 520 470 16-26
400 16" 600 580 525 16-30
Additional technical diagram showing gate valve components and assembly Gate valve application and installation illustration
Frequently Asked Questions
Can you make the product as per client's requirement?
Yes, we can manufacture according to your exact specifications.
What are your payment terms?
T/T (30% deposit, 70% balance before delivery) or L/C at sight.
Where is your nearest loading port?
Shanghai, Qingdao or Tianjin, China.
How can you guarantee the quality or any warranty?
If quality issues occur during use, products can be returned or handled according to customer requirements.
Do you accept small quantity order?
Yes, we accept small quantity orders.
What is your shipment and delivery time?
By sea or air. Typically 7 to 14 days for delivery, depending on order quantity.
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Company Henan Lianghe Pipeline Equipment Co.,Ltd
Location Pipeline Industrial Park, Gongyi City, Henan Province, China
Contact Person Kelly

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