---
title: Relief check valve(PRWseries)｜ROCKY-ICHIMARU Co., Ltd.
description: This is the Relief check valve(PRWseries) page of ROCKY-ICHIMARU Co., Ltd., which boasts the world’s top share for tire curing press valves.
image: https://www.rocky-ichimaru.co.jp/hubfs/rocky_ichimaru_co_jp/images/ogp.png
---

## Product Overview

![PRW1214](https://www.rocky-ichimaru.co.jp/hubfs/rocky_ichimaru_co_jp/images/product/fluid/valve/panel/prw/PRW1214.jpg)

Valve that releases pressure above a specified pressure while preventing backflow. Used to provide relief when the center post of the hydraulic drive center mechanism contracts during the tire curing press container closing operation.

### Download Documents

- [Catalog ](https://www.rocky-ichimaru.co.jp/en/document/download/valve)

## Product Features

### POINT Easy Valve Replacement

Conventional flanged valves require two gaskets, eight sets of nuts and bolts, and piping alignment, making them difficult to install and remove. This 2-way panel valve, on the other hand, can be easily replaced with one person because it is only fixed with two bolts.

## Main Specifications

| Fluid | Air, cold water |  |
| --- | --- | --- |
| Maximum working Pressure | Air: 0.7 MPa, Cold water: 3.2 MPa |  |
| Maximum working Temperature | 65℃ |  |
| End Connection | 1,2 Port | Panel-type (ROCKY-ICHIMARU original format) |

 

## Product Lineup

| Appearance | Model Number | Size |
| --- | --- | --- |
| ![PRW1214](https://www.rocky-ichimaru.co.jp/hs-fs/hubfs/rocky_ichimaru_co_jp/images/product/fluid/valve/panel/prw/PRW1214.jpg?width=214&height=150&name=PRW1214.jpg) | PRW1214 | DN15 |
| ![coming soon](https://www.rocky-ichimaru.co.jp/hs-fs/hubfs/rocky_ichimaru_co_jp/images/common/img_common_coming-soon.jpg?width=214&height=150&name=img_common_coming-soon.jpg) | PRW1214 | DN20、 32 |

 

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