Manufacturer:  Fushiman Co.,LTD.
Model: PMD31

• The direct-acting pressure reducing valve ensures stable operation.
• Since it adopts a primary pressure balance method, the secondary pressure is hardly affected by fluctuations in the primary pressure.
• The valve body uses synthetic rubber, ensuring good sealing performance when the valve is closed.
• If the flow rate is low, please use the PPD41B-3 type pressure reducing valve (nominal diameter 15–25).

Specifications and Materials

Note (1): Normally, the PPD41B-3 type pressure reducing valve is used (for economic reasons), but if its capacity is insufficient (when it reaches the maximum flow limit), this valve is used instead.

Remarks:

1. The valve casing can also be made of cast bronze or stainless steel cast bronze. In this case, ASME Class 150 can also be manufactured.
2. The connection parts can be made without rubber or brass if required.
3. Products exceeding the secondary pressure setting range can also be manufactured.

Performance

Note (2): For gases other than air, divide by √G (where G is the specific gravity of the gas, with air as 1).

Cv Value

Structure and Dimensions

Nominal Diameter 15–50	Nominal Diameter 65–100	Nominal Diameter 125・150

Dimensions and Mass

(mm, kg)

Disassembly and Maintenance Space Required

(mm)