VL(A)-321T -L/-T -M
| Nominal size | Rp 1/4" to 2" DN8 to DN50 |
| Nominal pressure | PN63 |
| Port | Reduced bore - L-bore - T-bore |
| Connection | BSPT female thread according to - DIN EN 10226-1 (Prefix "Rp") - former DIN 2999 - ISO 7/1 |
| Design | - ISO-Top mounting flange according to ISO 5211 - Antistatic design - 4-sided shift shaft - Hand lever with plastic cover |
| Temp. range | -10°C to +200°C (Observe pressure/temperature diagram) |
| Standard | -TA-Luft |
| - CE according to Pressure Equipment Directive 2014/68/EU | |
| - ATEX 2014/34/EU | |
| Optional* | - FDA |
| - EC 1935/2004 (Food) |
* with corresponding configuration
ISO-Top mounting flange according to ISO 5211
Suitable for mounting the hand lever as well as stem extensions. In particular, the automation of ball valves using pneumatic or electric actuators of all brands with compatible connections according to ISO 5211, as well as for accessories such as limit switches, etc., makes ball valves with ISO-Top extremely versatile in application.
Antistatic function
The ball valves in this series are equipped as standard with antistatic stems, which establish a permanent connection between the ball and the stem, as well as between the stem and the ball valve body.
As a result, any potential electrical charges are safely discharged via the body—a safety feature that is becoming increasingly important, especially for automated ball valves. The design of this function may vary depending on the type.
L- or T-bore
Whether with an L- or T-bore, the ball seals are designed to remain reliably tight under all conditions.
By default, all ball valves are equipped with stops for 90° rotations.
If required, these can, of course, be removed to allow the stems to rotate freely.
| Seals: | ||
| RPTFE | PTFE reinforced with 15% glass fibers | |
| PTFE - FDA | PTFE with FDA approval and certification | |
| PTFE - SS | PTFE reinforced with 50% stainless steel | |
| PTFE - SS - FDA | PTFE reinforced with 50% stainless steel and FDA approval | |
| PTFE - C | PTFE reinforced with 25% carbon | |
| PTFE - TFM | TFM1600 | |
| PEEK | Ball and body seals made of PEEK | |
| Body: | ||
| NA | Stem without antistatic function | |
| PRB | Pressure relief hole through the ball | |
| SD | M5 or M6 thread in stem for accessory mounting | |
| Connection: | ||
| T-G | "G" thread according to ISO 228-1 | |
| T-NPT | "NPT" thread | |
| Accessories: | ||
| M-OC | Cast hand lever type Octagon | |
| M-LD | Electro-polished cast hand lever with eyelet for | |
| locking capability, matching ISO-Top holes | ||
| SE | Stem extension 100 mm for ISO-Top | |
| Others: | ||
| FG | Food grade version (food-safe lubricants) | |
| OGF | Oil and grease-free version | |
| SF | Silicone-free version (silicone-free lubricants) | |
| OGSF | Oil, grease, and silicone-free version | |
Further options or special designs according to customer specifications are of course also possible upon consultation.
Please contact us!