specs don't include hose connection type, can you clarify?

They sell a. Retro fit. That works with this. but what really attaches to it is r-22 /r-12 hose.

Will this work on a dehumidifier that uses R410A freon ?

Supco makes an A1 (or SA1) for 1/4, 5/16, & 3/8 line tap with a max. operating pressure of 800psi for use with all refrigerants. Operating pressure on the discharge side of an r410a compressor can approach 600psi. Supco specifies a max. operation pressure of 500psi for the BPV31 line tap so it may work on the suction side, but will it hold up on the hi pressure (discharge) side during operation? Why take a chance...The product bulletin that comes with the BPV31 states it is not for use with r410a. FYI The SA1 has a built-in Schrader Valve whereas the BPV31 does not.

can i use this on a 410a system? its on a ac on a travel trailer.

I contacted Supco on this question. They said the BPV31 can be used on the low side (suction) of a 410A system. For the high side, they recommended their "A1" valve. I did complain to Supco that none of their documentation on their web site for the BPV31 mentions nothing about not using the BPV31 on a 410A system. Hopefully they will correct this.

will this work on a rv air conditioner to recharge with refrigernt

As others have said, it will work on any AC system with the same size line as the line tap.

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Supco BPV31 Bullet Piercing Valve, Silver

Product ID: 4505762

Details

Brand
Supco
Exterior Finish
Silver
Global Trade Identification Number
Inlet Connection Type
Threaded
Item dimensions L x W x H
1.5 x 2.5 x
Material
Metal

📏Compact 1.5x2.5x3.5 inch size

🔩1/4" threaded precision fit

⚙️Durable metal construction

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Description

🔧 Upgrade your toolkit with precision and reliability!

ROBUST METAL BUILD - Engineered for long-lasting durability under pressure
COMPACT LIGHTWEIGHT - Easy to handle and install without bulk
TRUSTED REPLACEMENT PART - Genuine Supco model BPV31 for perfect compatibility
INDUSTRY STANDARD COMPLIANCE - Meets rigorous specs for reliable performance
SEAMLESS THREADED CONNECTIONS - Ensures leak-proof, secure fit every time

The Supco BPV31 Bullet Piercing Valve is a genuine, metal pressure relief valve featuring 1/4" threaded inlet and outlet connections. Compact and lightweight at just 3.2 ounces, it offers durable, leak-proof performance and meets industry standards, making it the trusted choice for professional-grade appliance repairs and maintenance.

Specifications

ASIN	B00DM8J3MI
Best Sellers Rank	#71,983 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #889 in Dryer Replacement Parts
Brand Name	Supco
Connector Type	Threaded
Customer Reviews	4.5 4.5 out of 5 stars (4,065)
Exterior Finish	Silver
Global Trade Identification Number	00687152010769, 05053197011811
Included Components	Unit^Instruction Guide
Inlet Connection Type	Threaded
Item Dimensions	1.5 x 2.5 x 3.5 inches
Item Type Name	Bullet Piercing Valve
Item Weight	3.2 ounces
Manufacturer	Supco
Manufacturer Part Number	BPV31
Material Type	Metal
Model Number	BPV31
Number of Ports	2
Outlet Connection Type	Threaded
Size	Single Unit
Specification Met	Compliant with various industry standards and specifications
Thread Size	1/4"
UPC	722651300932 733281627030 741812665420 717449096159 094700517555 741812665437 687152010769 674897878754
Unit Count	12 Count
Valve Type	Pressure Relief Valve

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₨7888

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Sri Lanka.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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