Tecofi VG6400-00 Rising Stem Knife Gate Valve
VG6400-00 is a Tecofi knife gate valve with handwheel, rising stem, stainless steel 316 (CF8M) body, wafer type between PN10 flanges, DN50 to DN600, EPDM seat (-10°C to +130°C). For waste water, pulp, chemicals, pasty, powdery, granular and abrasive media.
- Brand Tecofi
- Origin France
- Type Knife gate valve with handwheel, rising stem, wafer type
- Body Stainless steel 316 (CF8M)
- Genuine products
- Full CO/CQ
- VAT invoice
- Quote within 24 working hours
PRODUCT DESCRIPTION
Tecofi VG6400-00 Rising Stem Knife Gate Valve
VG6400-00 is a Tecofi (France) knife gate valve with handwheel, rising stem, stainless steel 316 (CF8M) body, installed between PN10 flanges. This page covers VG6400-00 only. VG4400-00 has the same rising stem but a ductile iron EN-GJS-500-7 body, 304 gate and NBR seat, rated to +80°C.
Specifications
- Size range: DN50 to DN600
- Body: Stainless steel 316 (CF8M)
- Gate: Stainless steel 316L, beveled cutting edge guided in the body
- Packing: 2 PTFE rings + 1 EPDM O-ring
- Standard seat: EPDM or metal/metal (Ref. codes in the table below)
- Connection: between PN10 flanges per EN 1092-2 and ISO 7005-1
- Maximum working pressure: DN50-250: 10 bar; DN300-450: 7 bar; DN500-600: 4 bar (valid only when installed in the direction of the arrow on the body)
- Operating temperature: -10°C / +130°C with the standard EPDM seat
- Unidirectional tightness; molded monobloc body; small retention zone; pre-formed support plates from DN50 to DN300 for mounting accessories
Dimensions, weights and order codes (Ref.)
| DN (mm) | DN (inch) | L (mm) | Kg | Ref. (Seat: EPDM) | Ref. (Seat: Metal/Metal) |
|---|---|---|---|---|---|
| 50 | 2″ | 40 | 7.5 | VG6400-00EP0050 | VG6400-00MM0050 |
| 65 | 2″1/2 | 40 | 9 | VG6400-00EP0065 | VG6400-00MM0065 |
| 80 | 3″ | 50 | 10 | VG6400-00EP0080 | VG6400-00MM0080 |
| 100 | 4″ | 50 | 11.5 | VG6400-00EP0100 | VG6400-00MM0100 |
| 125 | 5″ | 50 | 15.5 | VG6400-00EP0125 | VG6400-00MM0125 |
| 150 | 6″ | 60 | 18.5 | VG6400-00EP0150 | VG6400-00MM0150 |
| 200 | 8″ | 60 | 35 | VG6400-00EP0200 | VG6400-00MM0200 |
| 250 | 10″ | 70 | 47 | VG6400-00EP0250 | VG6400-00MM0250 |
| 300 | 12″ | 70 | 61 | VG6400-00EP0300 | VG6400-00MM0300 |
| 350 | 14″ | 96 | 117 | VG6400-00EP0350 | VG6400-00MM0350 |
| 400 | 16″ | 100 | 151 | VG6400-00EP0400 | VG6400-00MM0400 |
| 450 | 18″ | 106 | 187 | VG6400-00EP0450 | VG6400-00MM0450 |
| 500 | 20″ | 110 | 205 | VG6400-00EP0500 | VG6400-00MM0500 |
| 600 | 24″ | 110 | 292 | VG6400-00EP0600 | VG6400-00MM0600 |
Difference from VG4400-00 and VG6400-001
- Body Stainless steel 316 (CF8M), gate Stainless steel 316L, seat and O-ring EPDM; VG4400-00 has a Ductile iron EN-GJS-500-7 (GGG50) body, Stainless steel 304 gate and NBR seat and O-ring.
- Maximum working temperature with the standard seat: -10°C / +130°C (VG4400-00: -10°C / +80°C). Metal/metal seat: -10°C / +130°C.
- Packing gland: Stainless steel CF8M (GX5CrNiMo 19-11-2); VG4400-00: Ductile iron EN-GJS-400-15 (GGG40).
- Flange standard: EN 1092-2 and ISO 7005-1; VG4400-00: EN 1092-2 and DIN 2501.
- Body test pressure (DN50-250 / DN300-450 / DN500-600): 15.4 / 12.6 / 7.2 bar; VG4400-00: 15 / 10.5 / 6 bar. Seat test pressure is the same: 11 / 7.7 / 4.4 bar.
- Rising stem (the stem moves with the gate): overall height H at DN50 is 348 mm, while VG6400-001 (non-rising stem) is 291 mm.
Optional seat materials (maximum temperature per the datasheet): white NBR -10/+80°C, EPDM -10/+130°C, silicone -10/+170°C, FPM (Viton type) -10/+170°C, PTFE +4/+170°C (minimum working pressure 1 bar), CSM (Hypalon type) +4/+80°C.
Applications
Per the datasheet: water treatment networks, pulp and paper industry, chemical plants, winemaking, cement works, pneumatic transport, storage. Fluids: water, sewage, pulp, pasty products, powdery, granular, fibrous, abrasive and crystallizing media. Flow regulation of pasty or abrasive fluids is possible with a deflector installed.
Standards / Certification
Manufactured according to the requirements of European directive 2014/68/EU (pressure equipment), module H. Option: conformity to ATEX directive 2014/34/EU. Flanges per EN 1092-2 and ISO 7005-1 (ISO PN10); pressure tests per EN 12266-1, DIN 3230 and ISO 5208. Other product approvals: on request.
Installation
Mounted between two flanges, in the direction of the flow arrow on the body; tightness is unidirectional. Face-to-face dimension (L) is to the Tecofi standard.
What to send for a quote
- Valve code (VG6400-00), DN and seat type (NBR/EPDM or metal/metal)
- Working pressure and temperature
- Medium (waste water, pulp, powder, granules, chemicals…) and flow direction
- Operation (handwheel) or accessories to be fitted
- Quantity
CAD replies with a quote within 24 working hours.
Technical documentation (datasheet)
TECHNICAL SPECIFICATIONS
Specifications of Tecofi VG6400-00 Rising Stem Knife Gate Valve
| PARAMETER | VALUE |
|---|---|
| Model | VG6400-00 |
| Brand | Tecofi |
| Origin | France |
| Type | Knife gate valve with handwheel, rising stem, wafer type |
| Body | Stainless steel 316 (CF8M) |
| Gate | Stainless steel 316L |
| Seat | EPDM or metal/metal |
| Packing | 2 PTFE rings + 1 EPDM O-ring |
| Connection | Wafer, between PN10 flanges (EN 1092-2 and ISO 7005-1) |
| Size range | DN50 to DN600 |
| Working pressure | DN50-250: 10 bar; DN300-450: 7 bar; DN500-600: 4 bar |
| Operating temperature | -10°C / +130°C (standard EPDM seat) |
Specifications may vary with the ordered configuration. Contact a CAD engineer for sizing to your actual operating conditions.
OTHER CODES IN THE RANGE
Same series
FAQ
Frequently asked questions about VG6400-00
How does VG6400-00 differ from VG4400-00 and VG6400-001?
VG6400-00 has a stainless steel 316 (CF8M) body, a stainless steel 316L gate and a EPDM seat, rising stem. VG4400-00 differs in body, gate and seat material (NBR); VG6400-001 differs in stem type (non-rising). See the difference section above.
What DN range and pressure does VG6400-00 cover?
DN50 to DN600, wafer type between PN10 flanges. Maximum working pressure: DN50-250: 10 bar; DN300-450: 7 bar; DN500-600: 4 bar.
What temperature can VG6400-00 take?
With the standard EPDM seat: -10°C to +130°C. Optional seats (EPDM, silicone, FPM, PTFE, CSM) have their own maximum temperatures listed in the datasheet.
What media is VG6400-00 used for?
The datasheet lists water, sewage, pulp, pasty, powdery, granular, fibrous, abrasive and crystallizing fluids, in water treatment, paper, chemical, cement and pneumatic transport applications.
What do I send for a VG6400-00 quote?
Send the valve code, DN, seat type (NBR/EPDM or metal/metal), pressure, temperature, medium and quantity. CAD replies with a quote within 24 working hours.
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