---
product_id: 25295685
title: "Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT"
brand: "control devices"
price: "$54.70"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/25295685-control-devices-st25-1a175-st-series-brass-soft-seat-asme
store_origin: EC
region: Ecuador
---

# 175 psi preset relief pressure 250°F max operating temperature 1/4" NPT Vibra-Seal thread lock Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT

**Brand:** control devices
**Price:** $54.70
**Availability:** ✅ In Stock

## Summary

> 🛡️ Safety that’s set and forget—engineered for peace of mind

## Quick Answers

- **What is this?** Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT by control devices
- **How much does it cost?** $54.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/25295685-control-devices-st25-1a175-st-series-brass-soft-seat-asme)

## Best For

- control devices enthusiasts

## Why This Product

- Trusted control devices brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Temp Ready:** Operates seamlessly up to 250°F for demanding environments
- • **Secure Thread Lock:** Vibra-Seal technology prevents leaks and loosening
- • **Durable Brass Build:** Corrosion-resistant brass body ensures longevity
- • **Certified Safety Assurance:** ASME rated with UV and NB marks for trusted compliance
- • **Precision Pressure Control:** Preset at 175 psi for reliable system safety

## Overview

The Control Devices ST25-1A175 is a brass soft seat safety valve preset to 175 psi, featuring a 1/4" male NPT inlet with Vibra-Seal thread lock for leak prevention. Designed for high-temperature applications up to 250°F, it combines corrosion-resistant materials with ASME safety certification, ensuring dependable pressure relief and compliance in professional systems.

## Description

Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT

## Features

- Relief pressure preset to 175 psi with flow rate of 157 cfm
- 1/4 NPT threaded inlet connection with Vibra-Seal thread lock
- Brass construction and music wire spring for corrosion resistance
- 250 F maximum temperature for use in high temperature applications
- ASME safety rated with UV and NB marks

## Product Details

- **Material:** Brass
- **Brand:** Control Devices
- **Item dimensions L x W x H:** 2 x 1 x 1 inches
- **Exterior Finish:** Stainless Steel,Steel,Zinc
- **Inlet Connection Size:** 0.25 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** MNPT
- **Maximum Operating Pressure:** 175 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.25 Inches

## Images

![Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT - Image 1](https://m.media-amazon.com/images/I/813iSzR37YL.jpg)

## Frequently Bought Together

- Control Devices ST25-1A175 ST Series Brass Soft Seat ASME Safety Valve, 175 psi Set Pressure, 1/4 Male NPT
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**Shop now:** [https://www.desertcart.ec/products/25295685-control-devices-st25-1a175-st-series-brass-soft-seat-asme](https://www.desertcart.ec/products/25295685-control-devices-st25-1a175-st-series-brass-soft-seat-asme)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-01*