Fushiman PPD41B/PPD41B-3 Pressure Reducing Valves (High-Pressure Gas Equipment Certified Product)

Manufacturer: Fushiman Co.,LTD.
Model: PPD41B/PPD41B-3

Model	Nominal Diameter	Primary Pressure	Secondary Pressure Range	Maximum Operating Temperature	Body Material	Connection
PPD41B	15〜25	MAX. 4.0MPa	0.6～3.0MPa	80℃	SUS	Flange
PPD41B-3	15〜25	MAX. 2.0MPa	0.03～1.6MPa	80℃	SUS	Flange

Specifications, Materials, and Performance

Model		PPD41B			PPD41B-3
Specifications	Fluid	Air, Nitrogen			Air, Nitrogen
	Nominal Diameter	15	20	25	15	20	25
	Primary Side Pressure MPa	0.7 – 4.0			0.05 – 2.0
	Secondary Side Pressure Range MPa	0.6 – 1.6	1.3 – 2.3	2.0 – 3.0	0.03 – 0.15	0.1 – 0.7	0.6 – 1.6
	Temperature ℃	0 – 80			0 – 80
	Pipe Connection	Flange JIS 40K Flat Face			Flange JIS 10K Full Face or JIS 20K Flat Face
Main Component Materials	Valve Box	Stainless Steel			Stainless Steel
	Lower Cover	Stainless Steel			Stainless Steel
	Spring Protection Tube	Stainless Steel			Cast Steel
	Valve Body & Stem	Stainless Steel (Valve Contact Surface with Teflon Coating)			Stainless Steel (Valve Contact Surface with Synthetic Rubber Coating)
	Diaphragm	Synthetic Rubber			Synthetic Rubber
Performance	Minimum Differential Pressure Setting	0.1 MPa			0.02 MPa
	Offset	Approx. 10% of Maximum Set Pressure			Below 10% of Maximum Set Pressure
	Shut-off Pressure Rise	Approx. 0.1 MPa			0.02 MPa or Less
	Minimum Adjustable Flow Rate (Air)	3 m³/h (Standard Condition)			1 m³/h (Standard Condition)
	Valve Seat Leakage	Below 0.05% of Rated Flow			Below 0.01% of Rated Flow
	Cv Value(2)	1.8	2.6	3.9	1.8	2.6	3.9

Notes:

For gases other than air, divide by √G (G: specific gravity of the gas, with air as 1).
There is a maximum flow rate. Please refer to page 23 or page 24 for Cv values.

Remarks:
The above specifications and materials represent standard values. We will consider individual adjustments based on your usage conditions.