GKV295 The Top-Entry Tank Bottom Discharge Ball Valve is designed for clean, efficient, full-drain discharge of liquids or semi-solids from tanks, reactors, or vessels. Its top-entry design allows easy maintenance and in-line servicing, minimizing downtime.
The flush-mounted, cavity-free ball ensures zero dead space and residue-free flow, ideal for industries with high cleanliness standards such as pharmaceuticals, food, cosmetics, and specialty chemicals.
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Top-Entry Bottom Tank Discharge Ball Valve
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Size Range DN25–DN200 (NPS 1"–NPS 8")
Temperature Range Soft Seat (PTFE/EPDM): -20°C to +200°C Metal Seat: up to +800°C
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Body Material ASTM A351 CF8, CF3, CF8M, CF3M (Cast stainless steel); ASTM A182 F304, F316, F316L, F904L, F51 (Duplex stainless steel, Forged stainless steel). ASTM A216 WCB, WCC (Cast carbon steel); ASTM A350 LF2, ASTM A352 LCB (low-temperature carbon steel); ASTM A105 (forged steel). ASTM A182 F22 (Cr-Mo alloy steel); Special Alloys (Nickel-Based & High-Performance): Inconel 600, 625, 825, Incoloy 800H, Hastelloy C276, C3, C4, Monel 400, Monel K500; B463 Alloy 20; ASTM B348 Titanium Gr.2, Gr.3, Gr.5, Gr.12; ASTM B493 Zirconium R60702, ASTM B365 Tantalum R05200, R05400 (Tantalum). |
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Working Pressure 150LB - 2500LB |
Stem Material SS316, SS316L, Duplex SS, Nitronic 50 etc. |
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Face To Face ASME B16.10, EN 588-1 F4/F5, DIN 3202 F4/F5, JIS B2002
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Seat Material Standard: RPTFE; Optional: TFM1600, Tek-Fil®, UHMWPE, cavity filler, Metal Seat |
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Ball Material SS316L, Hastelloy, PTFE-coated Stainless Steel, Ceramic, F46, F51 etc. |
Body Style 1-stage |
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Design Standards ASME B16.34, ISO 15761, DIN EN 12516, MSS SP-134 |
Connection Flanged |
Top-Entry Bottom Tank Discharge Ball Valve
Description：
The Top Entry Tank Bottom Ball Valve is engineered for bottom discharge
applications in tanks, reactors, and vessels, offering flush drainage, dead-
space-free design, and easy inline maintenance.
The top entry structure allows for disassembly, inspection, and repair of internal
parts without removing the valve from the system — minimizing downtime and
ensuring sterile, efficient processing.
Key Features:
Top-entry design – allows quick inline maintenance of ball, seats, and seals
Flush-mounted outlet – ensures complete and clean drainage with zero hold-up volume
Full bore – unrestricted flow, suitable for viscous or solid-laden media
Anti-blowout stem, anti-static device, and fire-safe design (optional)
Cavity-filler seats – eliminate dead zones, ideal for sanitary or slurry service
Available with manual lever, gear operator, or actuated (pneumatic/electric) options.
Technical Details
Size: DN25–DN300 (1"–12")
Pressure: Up to Class 600 / PN100
Temperature: -50°C to +600°C (materialdependent)
End Connections: Tank pad (welded), Flanged (RF/RTJ), Clamp, or customized
Standards: API 6D, ASME B16.34, EN 12516-1
Materials:
Body / Bonnet: SS304/SS316, Alloy 20, Hastelloy C276, Duplex/Super Duplex, Titanium Gr.2
Ball: SS316/316L, chrome or ENP-coated, Hastelloy, Monel, ceramic-coated
Stem: SS316/316L, Duplex 2205, anti-blowout, optional fire-safe
Seat: PTFE, TFM1600, PEEK, cavity-filled PTFE/TFM, metal (Stellite)
Seals / Packing: PTFE, Graphite, Viton, EPDM, Kalrez, live-loaded stem packing
Highlights:
Top-entry design for easy in-line maintenance
Cavity-free, zero-dead-space ball ensures residue-free flow.
Suitable for high-cleanliness industries and harsh chemical environments
Top-Entry Bottom Tank Discharge Ball Valve | Full Drainage & Easy Maintenance
The Top-Entry Bottom Tank Discharge Ball Valve is engineered for industries that require full tank drainage, easy maintenance, and reliable sealing under demanding process conditions.
Key Feature：
Top-Entry Design: Allows direct access to internal components for
quick maintenance without removing the valve, reducing downtime and labor.
Full-Bore Flow: Optimized geometry ensures maximum flow with minimal
pressure drop, ideal for viscous, slurry, or solids-laden fluids.
Flush-Mounted Bottom Discharge: Complete drainage at the tank outlet,
minimizing residue, cleaning time, and contamination risk.
High-Performance Sealing: PTFE, PEEK, or elastomer seats provide chemical
resistance, wear protection, and temperature endurance.
Heavy-Duty Materials: Stainless steel, duplex, or special alloys for corrosion
resistance in aggressive environments.
Flexible Actuation: Supports manual, pneumatic, or electric operation,
with optional automation integration.
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GKV295 The Top-Entry Tank Bottom Discharge Ball Valve is designed for clean, efficient, full-drain discharge of liquids or semi-solids from tanks, reactors, or vessels. Its top-entry design allows easy maintenance and in-line servicing, minimizing downtime. The flush-mounted, cavity-free ball ensures zero dead space and residue-free flow, ideal for industries with high cleanliness standards such as pharmaceuticals, food, cosmetics, and specialty chemicals.
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