GRACO 237540 – Low Pressure Ball Valve, 1/2″ Tube Fitting x 3/8 NPSM(M), Stainless Steel, Catalyst &

GRACO 237540 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 1/2″ OD Tube x 3/8″ NPSM(m), 500 PSI

Low pressure ball valve designed for finishing applications, featuring stainless steel and PTFE construction for compatibility with catalyst, waterborne, and other finishing materials. Engineered with multiple connection options to meet specific application needs.

Features:

Use for on/off fluid control. Allows safer system operation by permitting relief of fluid pressure or isolation of components from pressure during maintenance. Ball vales must be used in the fully open or closed position. Do not throttle the valve – it could cause premature seal failure.

Stainless steel and PTFE materials are compatible with catalyst, waterborne, and other finishing materials

Many different connection options to meet your specific needs

Additional Specifications

Max Working Pressure: 35 bar (500 PSI)

Material: Stainless steel and PTFE

Series: C

Cavity Type: Closed Cavity

Fitting Standard: npsm threaded ends meet SAE J516 fitting recommendations

L1 Recommended Straight Length: 1-3/16″

L2 Absolute Minimum Straight Length: 31/32″

Connection Type: compression nut on one end, threaded on other end

Handle Type	Lever
Inlet Size (in)	1/2
Inlet Thread Type	Tube End
Maximum Working Pressure (MPa)	3.5
Maximum Working Pressure (psi)	500
Outlet Size (in)	3/8
Outlet Thread Gender	Male
Outlet Thread Type	NPSM
Seal Material	PTFE
Type	Ball Valve

Features

Stainless steel and PTFE materials compatible with catalyst, waterborne, and other finishing materials

Multiple connection options to meet specific needs

35 bar (500 PSI) pressure rating

Ball valve design for reliable flow control

Applications

Finishing applications

Catalyst material handling

Waterborne coating systems

Other finishing material applications

Compatible Equipment

carbon steel tubing ASTM A-179 or equivalent

stainless steel tubing ASTM A-269, ASTM A-213 or equivalent

Related Parts

237528 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 1/4″ NPT(m) x 1/4″ NPT(m)

237529 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 1/4″ NPT(m) x 3/8″ npsm(m)

237530 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ NPT(m) x 1/4″ NPT(m)

237531 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ NPT(m) x 3/8″ NPT(m)

237532 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ NPT(F) x 3/8″ NPT(F)

237533 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ npsm(m) x 3/8″ NPT(m)

237535 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ NPT(F) x 3/8″ npsm(m)

237537 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ OD Tube x 3/8″ OD Tube

237538 – Low Pressure Ball Valve Compatible w/ stainless steel, Catalyst & Waterborne Materials, 3/8″ OD Tube x 3/8″ NPT(m)

Part of GRACO’s swivels and valves product line within the finishing accessories category. Instruction manual reference: 307628 Part of the 316 Series Stainless Steel ball valve family. Features closed cavity design for low-pressure applications. Shipped fully assembled with compression nut finger tight. Do not disassemble before installing. Tubing must be softer than ferrules for leak-free installation. Tubing hardness requirements: carbon steel Rb 72 or less, stainless steel Rb 80 or less.

Reference Manuals

345020 (Page 75) Finishing Accessories

307628 (Page 1) Low-Pressure Ball Valves and