Benefits and Features

• Small valve-opening pressure differential.
• Select between a metal valve seat or a soft valve seat for use with steam, water or air.
• Available in sizes up to 4 inch on some models.
• All stainless steel construction (CK3M/CK3T/CK3R also available in brass or bronze).

• Reliably Prevents Backflow

  • Check valves utilize a mechanical sealing mechanism to prevent backflow.

  • By providing a tight seal, backflow is safely avoided.

• Easy to Use

  • Compact design.

  • There are no restrictions on installation orientation (horizontal, vertical).

  • After the valve has closed, it opens again at the slightest pressure differential.

• Long Service Life

  • TLV’s unique center-guided disc (CK3MG, CKF3MG, CKF3RG) offers greater durability.

Application Areas

• Piping that requires backflow prevention.
• Locations where frequent opening and closing operation is expected.

Screwed Connection

CK3M/CK3T/CK3R: Select among 3 types of sealing surfaces, depending on the temperature and fluid requirements

Applicable Fluids	Max. Operating Temperature TMO (°C)	Sealing Surface	Model	Photo	Catalogue
Steam	220℃	Metal	CK3M		Specifications
Steam, Hot water	185℃	PTFE	CK3T
Air, water, water	90℃	Nitrile Rubber (NBR)	CK3R

CK3MG: Center-guided disc and large flow area ensure superior durability and capacity

Applicable Fluids	Max. Operating Temperature TMO (°C)	Sealing Surface	Model	Photo	Specifications
Steam, hot water, water	220℃	Metal	CK3MG		Specifications

Wafer-construction (flangeless)

CKF3M/CKF3R: Compact stainless steel check valves

Applicable Fluids	Max. Operating Temperature TMO (°C)	Sealing Surface	Model	Photo	Specifications
Steam, hot water, water	350℃	Metal	CKF3M		Specifications
Air, water, water	150℃	Fluorine Rubber (FPM)	CKF3R

CKF3MG/CKF3RG: Center-guided disc and large flow area ensure superior durability and capacity

Applicable Fluids	Max. Operating Temperature TMO (°C)	Sealing Surface	Model	Photo	Specifications
Steam, hot water, water	350℃	Metal	CKF3MG		Specifications
Air, water, water	150℃	Fluorine Rubber (FPM)	CKF3RG

Product Details

Model	Photo	Connection	Body Material	Applicable Fluids	PMO (MPaG)	Min. Opening Differential Pressure (MPa)*	TMO (°C)	Sealing Surface Material	Catalogue	Manual
CK3M		Screwed	Brass (C3604)	Steam	1.0	0.002	220	Metal	Specifications	Manual
			Bronze (CAC407)
			Stainless Steel (ASTM A351 Gr.CF8)		2.1
CK3T		Screwed	Brass (C3604)	Steam Hot water	1.0	0.002	185	PTFE
			Bronze (CAC407)
			Stainless Steel (ASTM A351 Gr.CF8)		1.6
CK3R		Screwed	Brass (C3604)	Air Hot water Water	1.0	0.002	90	NBR
			Bronze (CAC407)
			Stainless Steel (ASTM A351 Gr.CF8)		1.6
CK3MG		Screwed	Stainless Steel (ASTM A351 Gr.CF8)	Steam Hot water Water	2.1	0.001	220	Metal	Specifications	Manual
CKF3M		Wafer	Stainless Steel (ASTM A351 Gr.CF8)	Steam Hot water Water	3.0	0.002	350	Metal	Specifications	Manual
CKF3R		Wafer	Stainless Steel (ASTM A351 Gr.CF8)	Air Hot water Water	1.6	0.002	150	FPM
CKF3MG		Wafer	Stainless Steel (ASTM A351 Gr.CF8)	Steam Hot water Water	3.0	0.001	350	Metal	Specifications	Manual
CKF3RG		Wafer	Stainless Steel (ASTM A351 Gr.CF8)	Air Hot water Water	1.6	0.001	150	FPM

• PMO = Maximum Operating Pressure
• TMO = Maximum Operating Temperature

• The latest version of each product's instruction manual can be found on this page.

*When the valve has remained closed for a long period of time, the valve and the valve seat may stick, increasing the necessary minimum opening differential pressure.