---
product_id: 142421187
title: "Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA"
brand: "smc"
price: "12.78 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Smc"
url: https://www.desertcart.com.om/products/142421187-inline-poppet-check-valve-685-series-pp-1-2-fpt
store_origin: OM
region: Oman
---

# Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA

**Brand:** smc
**Price:** 12.78 OMR
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA by smc
- **How much does it cost?** 12.78 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/142421187-inline-poppet-check-valve-685-series-pp-1-2-fpt)

## Best For

- smc enthusiasts

## Why This Product

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

## Description

Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA 6850090. The 685 Series Inline Poppet Check Valve 1/2 FPT: The 685 Series Inline Poppet Check Valve 1/2 FPT: The 685 Series Poppet Check Valve Prevents reverse flow and incorporates a thin elastomer disc supported by a poppet that seals on the seat. Pressure in the flow direction moves the seal off the seat first before pressure builds enough to move the poppet away from the seat. The 685 Series Check Valve maximum operating pressure of 125 psi covers a wide range of air and fluid applications. The 685 Check is a compact design with a light cracking pressure high flow rate and a positive seal at very low back pressure or slight vacuum. For higher cracking pressure applications an embedded o-ring poppet is substituted for the standard elastomer disc poppet. Material Polypropylene Body & Poppet Black. Custom order: White Seal Buna-N. Custom order: Ethylene Propylene or Fluoroelastomer (Viton) Inlet x Outlet 1/2 Female NPT X 1/2 Female NPT 1/2 Female NPT x 1/2 Male NPT 1/2 Male NPT x 1/2 Female NPT 1/2 Male NPT x 1/2 Male NPT Cracking Pressure 302 Stainless Spring @ 1/3 psi. Custom order:1 3 7 psi or Hastelloy Spring @ 1/3 1 3 psi. 685 Series FP CHK 685-8F8F-B Check Valves check valve inline check valve female check valve female threaded check valve smc BUNA check valve PVC check valve 685 series check valve

Review: check valve - it worked - worked for me
Review: Great! Use for SoftWash system. - Using for SoftWash system. Works!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005VPM2AA |
| Best Sellers Rank | #62,123 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #83 in Check Valves |
| Brand | SMC |
| Date First Available | July 19, 2014 |
| Exterior Finish | Polypropylene |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | threaded |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.12 ounces |
| Item dimensions L x W x H | 3.5 x 3.27 x 1.42 inches |
| Item model number | 685 Series |
| Manufacturer | SMC |
| Material | Polypropylene |
| Maximum Operating Pressure | 125 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Outlet Connection Type | MNPT |
| Product Dimensions | 3.5 x 3.27 x 1.42 inches |
| Specification Met | ASME B16.34 |

## Product Details

- **Brand:** SMC
- **Exterior Finish:** Polypropylene
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** threaded
- **Item dimensions L x W x H:** 3.5 x 3.27 x 1.42 inches
- **Material:** Polypropylene
- **Maximum Operating Pressure:** 125 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.5 Inches
- **Outlet Connection Type:** MNPT

## Images

![Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA - Image 1](https://m.media-amazon.com/images/I/61of00AexuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ check valve - it worked
*by A***R on November 29, 2025*

worked for me

### ⭐⭐⭐⭐⭐ Great! Use for SoftWash system.
*by D***O on July 6, 2025*

Using for SoftWash system. Works!

### ⭐⭐⭐⭐⭐ Worth it
*by G***T on December 21, 2025*

Works but mine leaks a little. Could be my fault. I heard these are prone to breaking open before i purchased. Took a chance and it payed off.

## Frequently Bought Together

- Inline Poppet Check Valve 685 Series PP 1/2 FPT - BUNA
- Banjo HB050-025 Polypropylene Hose Fitting, Adapter, 1/2" NPT Male x 1/4" Barbed
- Banjo NIP050-SH Polypropylene Pipe Fitting, Short Nipple, Schedule 80, 1/2" NPT Male, 1-3/4" Length

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.om/products/142421187-inline-poppet-check-valve-685-series-pp-1-2-fpt](https://www.desertcart.com.om/products/142421187-inline-poppet-check-valve-685-series-pp-1-2-fpt)

---

*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-12*