Internet #203804502

Model # 1/2 SCV

0098268679946

Watts

1/2 in. Brass FPT x MPT Service Check Valve

$ 8 32
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Frequently Bought Together

Frequently Bought Together

Product Overview

This service check valve is an excellent choice to facilitate the servicing of system components without the need to drain the system. It is designed to work when installed between the system and the component. This valve is spring loaded, which allows it to open to system pressure when component is loaded, and close when component is removed, maintaining system integrity.
  • Made of solid brass for strength and durability
  • Excellent for use with expansion tanks, float vents, and pressure gauges
  • Adapts to standard pipe thread
  • Spring loaded
  • Facilitate the servicing of components under pressure
  • For boiler applications
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: 1/2 SCV
Internet #: 203804502

This service check valve is an excellent choice to facilitate the servicing of system components without the need to drain the system. It is designed to work when installed between the system and the component. This valve is spring loaded, which allows it to open to system pressure when component is loaded, and close when component is removed, maintaining system integrity.

  • Made of solid brass for strength and durability
  • Excellent for use with expansion tanks, float vents, and pressure gauges
  • Adapts to standard pipe thread
  • Spring loaded
  • Facilitate the servicing of components under pressure
  • For boiler applications
  • California residents see Prop 65 WARNINGS

Info & Guides

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Key Features

Product Overview
Key Features
This service check valve is an excellent choice to facilitate the servicing of system components without the need to drain the system. It is designed to work when installed between the system and the component. This valve is spring loaded, which allows it to open to system pressure when component is loaded, and close when component is removed, maintaining system integrity.
  • Made of solid brass for strength and durability
  • Excellent for use with expansion tanks, float vents, and pressure gauges
  • Adapts to standard pipe thread
  • Spring loaded
  • Facilitate the servicing of components under pressure
  • For boiler applications
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: 1/2 SCV
Internet #: 203804502

This service check valve is an excellent choice to facilitate the servicing of system components without the need to drain the system. It is designed to work when installed between the system and the component. This valve is spring loaded, which allows it to open to system pressure when component is loaded, and close when component is removed, maintaining system integrity.

  • Made of solid brass for strength and durability
  • Excellent for use with expansion tanks, float vents, and pressure gauges
  • Adapts to standard pipe thread
  • Spring loaded
  • Facilitate the servicing of components under pressure
  • For boiler applications
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar

Compare Similar Products
Brand Watts Watts Watts John Guest
Name 1/8 in. Brass FPT x MPT Service Check Valve 1/2 in. Brass FPT x MPT Service Check Valve 3/4 in. x 3/4 in. Lead Free Residential Dual Check Valve, Union Female NPT Inlet x Union Female NPT Outlet 1/4 in. Polypropylene Push-to-Connect Check Valve (10-Pack)
Price
$5.99
$8.32
$39.50
$76.19
Ratings (7) (7) (0) (0)
Connection FIP x MIP FIP x MIP Female Pipe Thread PTC x PTC
View Product View Product View Product View Product

Specifications

Dimensions

Inlet Diameter (In.)
1/2
Outlet Diameter (In.)
1/2
Product Depth (in.)
0.75
Product Height (in.)
1
Product Length (in.)
.75
Product Width (in.)
0.75

Details

Compatible Pipe Material
Brass
Connection
FIP x MIP
Features
Removable,Threaded
Indoor/Outdoor
Indoor
Material
Brass
Maximum Pressure (psi)
150
Maximum Working Temperature (F)
240
Product Weight (lb.)
.15lb
Returnable
90-Day
Valve Type
Check

Warranty / Certifications

Manufacturer Warranty
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.

Specifications

Dimensions

Inlet Diameter (In.)
1/2
Outlet Diameter (In.)
1/2
Product Depth (in.)
0.75
Product Height (in.)
1
Product Length (in.)
.75
Product Width (in.)
0.75

Details

Compatible Pipe Material
Brass
Connection
FIP x MIP
Features
Removable,Threaded
Indoor/Outdoor
Indoor
Material
Brass
Maximum Pressure (psi)
150
Maximum Working Temperature (F)
240
Product Weight (lb.)
.15lb
Returnable
90-Day
Valve Type
Check

Warranty / Certifications

Manufacturer Warranty
Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.

Questions & Answers

which direction does the flow go? Male end towards female or vice versa?

Asked by: Guppy
Not applicable. The device is not a check valve. The device is mislabeled.
Answered by: DEEP9
Date published: 2018-06-05

How much differential pressure is required to open the valve in the forward direction?

Asked by: Possum
Not applicable. The device is not a check valve. The device is mislabeled. There is no forward direction.
Answered by: DEEP9
Date published: 2018-06-05

Flow direction AND THREAD?

What is the flow direction? From female to male or from male to female? FPT x MPT means NPTFxNPTM, right?
Asked by: Bobby
From Watts Installation Instructions: Installation Instructions Watts Service Check Valves, Model SCV, facilitate the servicing of system components without the need to drain the system. They install between the system and the component. As the component is threaded into the service check valve the spring loaded valve opens to system pressure. As the component is removed, the valve closes, maintaining system integrity while the component is being inspected. (See other side for installation instructions) Flow is from Female (FPT) to Male (MPT) when a component is attached. When component is removed, the valve closes and holds flow in check. A typical installation might be in between a Pressure tank and an Air separator in a How Water Supply circuit piping. The benefit is the Sppuly Line (Pressure Tank) pressure is maintained when the Air Separator is removed for service.
Answered by: techmanhou
Date published: 2018-09-02

Is it threatened both sides, and which side flow?

Asked by: Nguyen
They are Female thread on the inlet and Male thread on the outlet
Answered by: WattsWater
Date published: 2019-02-13
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Customer Reviews

1/2 in. Brass FPT x MPT Service Check Valve is rated 2.7 out of 5 by 7.
Rated 1 out of 5 by from From the discussion it sounds like the device CANNOT BE USED AS A CHECK VALVE. The device is used... From the discussion it sounds like the device CANNOT BE USED AS A CHECK VALVE. The device is used as a SERVICE VALVE and is NOT A CHECK VALVE since it cannot be used as one. This in turn means THE DEVICE IS MISLABELED. I'm looking for a check valve and don't need it and if I were looking for a service valve the label would suggest it was not the right part. The correct label is probably "Service & Maintenance Valve"
Date published: 2018-06-05
Rated 1 out of 5 by from When you install a fitting into the female of the valve the fitting locks the check mechanism of ... When you install a fitting into the female of the valve the fitting locks the check mechanism of the valve in the open position rendering it useless. If you back the fitting off so that the check will work, the valve will leak under pressure.
Date published: 2017-02-28
Rated 5 out of 5 by from Purchaser mds, does NOT understand how this check valve works. A device screwed into the female f... Purchaser mds, does NOT understand how this check valve works. A device screwed into the female fitting is SUPPOSED to open the check valve, and KEEP it open, so that there is flow in and out of the device. REMOVING the device from the female fitting, while leaving the male fitting screwed in place CLOSES the check valve, and hence the flow. HE WANTS TO DEFEAT THE FUNCTION OF THE VALVE! Ah,...BLISS!
Date published: 2017-09-05
Rated 1 out of 5 by from The 1/8 in MPT x FPT check valve would not... The 1/8 in MPT x FPT check valve would not work with a 1/8 in nipple screwed in. The nipple held the check valve open so I had to make a new longer body to make it work. I am a machinist so it was only an annoyance but someone without a lathe and tools to make this part it would be impossible.
Date published: 2018-05-23
Rated 1 out of 5 by from Not all brass. Plastic inside, includes the sealing portion that holds an oring. Then another par... Not all brass. Plastic inside, includes the sealing portion that holds an oring. Then another part of the plastic is a large flat that disallows screwing anything into female thread. Super strong spring, way more than 0.5 psi. Maybe 30-50psi (if you could screw anything into it!!! This is an air bleed, manually operated. Garbage!!
Date published: 2017-11-21
Rated 5 out of 5 by from Wish I had discovered this check valve years ago. Works great! Now no draining water from system ... Wish I had discovered this check valve years ago. Works great! Now no draining water from system to change expansion tank.
Date published: 2018-03-06
Rated 5 out of 5 by from To be used only where male fittings are utilized When used as described above the value works great...
Date published: 2017-09-04
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