---
title: LOTO valves | KITZ SCT CORPORATION
description: This is the LOTO valves page for the KITZ SCT CORPORATION. As a part of the all-around valve manufacturer KITZ Group, KITZ SCT maintains an integrated system providing development, manufacture, sales, and servicing of fluid control devices and equipment such as valves for semiconductor processes.
image: https://en.kitzsct.com/hubfs/assets/images/ogp.jpg
---

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## LOTO valves

![LOTO valves](https://en.kitzsct.com/hubfs/images/products/highlight/1/img_1_001.jpg)

Valves manufactured by KITZ SCT are designed to support stringent gas requirements in markets from semiconductors to liquid crystal and LEDs. This product is a manual valve with a LOTO function, effective for customers' safe operation.

## Features

- RoHS Directive-compliant product
- 90°-open/close handle with LOTO function  
  Attach a padlock to prevent misoperation.
- Available for use in a wide range of fields, including analysis, medicine, pharmaceuticals, and so on as well as semiconductors, liquid crystal, and solar cells.
- The lineup includes a wide range of seat materials, connection methods, interior polishing grades, and so on.

## Main specifications

| **Item** | **VLD4QL** | **VLD8QL** |  |  |
| --- | --- | --- | --- | --- |
| **Manual** | **Manual** |  |  |  |
| **CVC-Male** | **CVC-Female** | **CVC-Male** | **CVC-Female** |  |
| Dimention | Height | 62.4 | 76 |  |
| Face-to-face | 57 | 70.6 | 77 | 83 |
| Cv value | 0.27 | 0.7 |  |  |
| Operating maximum pressure | 0.98MPa(G) |  |  |  |
| Operating fluid temperature range | PCTFE　-10〜80℃ |  |  |  |
| PI,PFA　-10〜150℃ |  |  |  |  |
| Exterior leak rate | 1.0 x 10-10 Pa･m3/sec or less |  |  |  |
| Interior leak rate | 1.0 x 10-10 Pa･m3/sec or less |  |  |  |
| Gas contact part surface roughness | EP (Rz 0.7 μm or less) / STD (Rz 3.2 μm or less) |  |  |  |
| Seat material | PCTFE,PI,PFA |  |  |  |
| Body material | SUS316L |  |  |  |
| Diaphragm material | Cobalt alloy |  |  |  |
| Air supply port |  - |  - |  |  |
| Operating air pressure | - |  - |  |  |
| Handle RPM | 90° | 90° |  |  |
| Packaging | EP grade: duplex, STD grade: single |  |  |  |

 

## Applicable model examples and product code list

### Applicable model examples [VLD-QL Series]

| VLD4QLS-VC-EP-316L | 1/4" | LOTO | Male CVC - Male CVC PCTFE EP |
| --- | --- | --- | --- |
| VLD4QLS-VFC-STD-316L | 1/4" | LOTO | Female CVC - Female CVC PCTFE STD |
| VLD4QLS-WC-EP-316L | 1/4" | LOTO | Butt fusion welding PCTFE EP |
| VLD4QLS-VA(P)-STD-316L | 1/4" | LOTO | Male CVC - Male CVC PFA(PI) STD |
| VLD8QLS-VC-EP-316L | 1/2" | LOTO | Male CVC - Male CVC PCTFE EP |
| VLD8QLS-VFC-STD-316L | 1/2" | LOTO | Female CVC - Female CVC PCTFE STD |
| VLD8QLS-WC-EP-316L | 1/2" | LOTO | Butt fusion welding PCTFE EP |
| VLD8QLS-VA(P)-STD-316L | 1/2" | LOTO | Male CVC - Male CVC PFA(PI) STD |

 

### Code list

![Code list](https://en.kitzsct.com/hubfs/images/products/highlight/1/img_1_002_en.png)

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