MPN

RS PRO Brass Full Bore, 2 Way, Ball Valve, Threaded, BSPP 38.1mm, 40 → 30bar Operating Pressure

RS Stock No.:: 733-5148
Brand:: RS PRO

RS PRO Brass Full Bore, 2 Way, Ball Valve, Threaded, BSPP 38.1mm, 40 → 30bar Operating Pressure

Bulk discount available

Subtotal (1 unit)*

£46.56

(exc. VAT)

£55.87

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

41 unit(s) ready to ship
Plus 7 unit(s) ready to ship from another location
Plus 30 unit(s) shipping from 08 October 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 4	£46.56
5 - 9	£45.16
10 +	£43.70

*price indicative

RS Stock No.:: 733-5148
Brand:: RS PRO

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Type	Full Bore, 2 Way
	Ball Material	Chrome Plated Brass
	Attachment Type	Threaded
	Thread Standard	BSPP
	Thread Size	38.1mm
	Body Material	Brass
	Pipe Diameter	40mm
	Safe for Use With	Air, Oil, Steam, Water
	Handle Type	Lever
	Handle Material	PVC Coated Steel
	Maximum Working Pressure psi	600psi
	Maximum Working Pressure bar	41.4bar
	Operating Pressure	40 → 30bar
	Handle Colour	Red

	Select all
	Brand RS PRO
	Type Full Bore, 2 Way
	Ball Material Chrome Plated Brass
	Attachment Type Threaded
	Thread Standard BSPP
	Thread Size 38.1mm
	Body Material Brass
	Pipe Diameter 40mm
	Safe for Use With Air, Oil, Steam, Water
	Handle Type Lever
	Handle Material PVC Coated Steel
	Maximum Working Pressure psi 600psi
	Maximum Working Pressure bar 41.4bar
	Operating Pressure 40 → 30bar
	Handle Colour Red

RS PRO Brass Ball Valve - Quarter-Turn

RS PRO range of brass manual ball valves. Manual ball valves are used to operate shut off valves which control water flow and pressure. These quarter turn brass full-bore ball valves have a lever style operating handle and are suitable for high temperature hot water services in domestic, commercial and industrial applications.

Ball valves can be used for air, gases, water, steam, chemicals, petrochemical products, etc. These valves are simple to use, you move the handle by a quarter of a turn to open or close the valve.

RS PRO have a great range of brass ball valves for the control of flow which can handle various pressures and high temperatures. Available in a variety of sizes:

733-5126 - Lever handle ball valve 1/4 inch
733-5120 - Lever handle ball valve 3/8 inch
733-5139 - Lever handle ball valve 1/2 inch
733-5132 - Lever handle ball valve 3/4 inch
733-5136 - Lever handle ball valve 1 inch
733-5145 - Lever handle ball valve 1-1/4 inch
733-5148 - Lever handle ball valve 1 1/2 inch
733-5142 - Lever handle ball valve 2 inch

Features and Benefits:

High quality full port brass ball valves

Dual sealing system – valve can be operated in both directions for easier installation

Material - chrome plated brass ball for longer life

Silicone-free lubricant on all seals

Travel stops on body to avoid stress at stem

No metal-to-metal moving parts

No maintenance ever required

Handle clearly shows ball position

Operating Temperature : -40ﾟC to +170ﾟC

Operating pressure : PN40 (600 PSI) up to 2’’, PN30 (450 PSI) from 2-1/2 to 4’’; non-shock cold working pressure

Threads : ISO228 parallel female by female threads

Connections options : FxF, MxF, BSPP, NPT

Stem Configuration : Blowout-proof nickel plated brass stem, with two FPM O-rings at the stem for maximum safety

Ball seats : Pure PTFE self-lubricating, with flexible-lip design

Body : Full port to DIN 3357 for maximum flow

Quality : Hot forged sand blasted, external nickel plated brass body and cap sealed with Loctite or equivalent thread sealant; Finest brass according to EN 12165 and EN 12164 (formerly DIN 17660 and UNI 5705-65) specificationss

Typical Applications

Manual quarter turn ball valves are available in various sizes to meet a range of applications. They feature a manual hand lever and can be made from brass, stainless steel and plastic. Ball values are popular as they are reliable and durable and still close securely over long periods making them suitable for shutoff and control applications.

Applications include:
Heating systems
Water treatment
Gas flow control
Liquid flow control

FAQs

How does a manual ball valve work?

A ball valve is a type of shut off valve that controls the flow of liquids or gases by its rotary ball. The valve is open when the ball’s hole is in line with the flow and closed when the ball is rotated by a quarter turn (90 degrees) by the value handle.

What is the difference between full bore and reduced bore ball valves?

A full-bore ball valve (also known as full port) has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lover friction loss. In other words, the bore diameter has the same internal diameter as the pipe. A reduced bore valve has a smaller bore diameter than the internal diameter of the pipework it is on.

Note

Approvals apply to specific configurations only

Warning

Freezing of the fluid in the installation may severely damage the valve

Approvals

WRAS (UK)
GOST-R (Russia)
Expert Conclusion (Russia)
EAC Conforming (Russia)
UkrSepro (Ukraine)
RoHS Compliant

Ball Valves 1/4 Turn, WRC Approved, Lever Handle

Hot pressed, nickel plated brass full bore ball valves with Lever style operating handles. Suitable for oil, air, water, saturated steam or high temperature hot water services in domestic, commercial and industrial applications.

Approved to WRC standards
Red colour-coded Lever handles
Working Temperature Range (Fluid): -20 to +170°C

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