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DELCO 304/316L Stainless Steel Manual Knife Gate Valve With Rising Stem, Abrasion Resistant Full Bore Valve for Slurry Sewage Pipeline Control

Broad Range: Sizes DN50-DN600 (2”-24”), 1.6-6.4Mpa pressure, -38℃ to 1100℃ temperature.
Optimal Flow: Minimal pressure drop when fully open.
Durable Seal: Features a PTFE Metal hard seal for reliable shut-off.
Corrosion-Resistant: Stainless Steel（valve body）
Versatile Connections: Flanged end connections (ANSI/GB/DIN/GIS/NF/BS).
Flexible Actuation: Manual rising stem, adaptable to Electric or Pneumatic.

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Product Details

Dimension

Knife gate valves excel in on-off and isolation tasks within systems containing high levels of suspended solids. Their design particularly suits them for managing challenging substances like slurry, viscous fluids, corrosive liquids, and abrasive materials. Offering minimal pressure drop when fully open, these valves are easy to operate, lightweight, and cost-efficient.

Operating effectively in harsh environments, knife gate valves typically feature a sharp blade for cutting through dense fluids. Their utility shines in wastewater applications, where corrosion poses a significant challenge. Therefore, optimizing the manual knife gate valve design for slurry management and utilizing acid-proof stainless steel for the knife enhances durability against corrosion. Consequently, this reduces the need for frequent maintenance or replacement.

Note: These valves feature hard seals exclusively.

Technical Parameters of Valve：

Size	DN50~DN600 (2”~24”)	Pressure Range	1.6~6.4Mpa
Temperature	-38℃~1100℃	Sealing Material	PTFE Metal Seal
End connection	Flange	Flange Drilling	ANSI/ GB/ DIN/ GIS/ NF/ BS
Main Materials	Stainless Steel	Actuation	Manual, Electric,or Pneumatic

manual knife gate valve structure size diagram

Note: M-螺纹孔(threaded hole)

DN	L	D	D1	D2	M	d	Number of Holes	H
DN50	50	160	125	100	16	18	4	265
DN65	50	180	145	120	16	18	4	285
DN80	52	195	160	135	16	18	4	350
DN100	52	215	180	155	16	18	8	375
DN125	52	245	210	185	16	18	8	440
DN150	62	280	240	210	20	23	8	475
DN200	62	335	295	265	20	23	8	570
DN250	70	390	350	320	20	23	12	705
DN300	70	440	400	368	20	23	12	790
DN350	90	500	460	428	20	25	16	875
DN400	90	565	515	482	20	25	16	930
DN450	95	615	565	532	20	25	20	1060
DN500	105	670	620	585	20	25	20	1160
DN600	115	780	725	685	24	30	20	1350

1	2	3	4	5	6	7	8	9	10	11	12	13	14
Valve Body	Valve Seat	Gate Plate	Packing	Bolt	Support	Support Plate	Double - ended Bolt	Nut	Packing Press Strip	Valve Stem	Valve Stem Nut	Lock Nut	Handwheel

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Offering Industry-Oriented Valve Solution For You

DELCO VALVE CO., LTD not only controls the quality in real time, but also zero tolerance for problems is the pursuit of high quality. Workers must undergo rigorous training and strict assessment before they can take up their jobs.

the knife gate valve is packed and shipped

Industry-Specific Expertise

We deliver tailored valve solutions for diverse sectors, meeting their unique operational and regulatory needs.
Engineered for Performance

Our valves are built for durability, precision, and efficiency, optimizing your system's performance and longevity.
Guaranteed Compliance & Safety

We ensure high standards and certifications, providing reliable and safe solutions that protect your assets and personnel.
Expert Support & Customization

Benefit from our technical expertise and customization options, ensuring perfect valve integration and optimal functionality for your specific application.