Diaphragm valve | PDV Series(Pneumatic Type)

PDV series stands as the standard type of Primet diaphragm valves.
It has forged body made of SUS316L (single melt) and is compatible with various types of fitting (metal seal, double ferrule and butt weld).

Model specifications for the order request.

Specification

Size 1/4” 3/8” 1/2”
Cv value 0.27 0.65
Max.Operating Pressure 1.0MPa(G)
Operating Temp. Range -10〜80℃
External Leakage Inboard ≦3×10-12 Pa・m3 /sec Helium
Across Seat ≦3×10-10 Pa・m3 /sec Helium

Material

Part name Material
①Body SUS316L
②Seat PCTFE
③Diaphragm Ni-Co Alloy
④Actuator Aluminum

Model

Male Metal Seal

Unit(mm)
Size A B C D E F G H
1/4″ 11 65 46 58 25 30 30 Rc1/8
1/2″ 17.5 73.5 56 76 28 37 37 Rc1/8

Female Metal Seal

Unit(mm)
Size A B C D E F G H
1/4″ 11 65 46 70.6 25 30 30 Rc1/8
1/2″ 17.5 73.5 56 100 28 37 37 Rc1/8

Double Ferrule

Unit(mm)
Size A B C D E F G H
1/4″ 11 65 46 (63.5) 25 30 30 Rc1/8
3/8″ 17.5 73.5 56 (79.4) 28 37 37 Rc1/8
1/2″ 17.5 73.5 56 (86) 28 37 37 Rc1/8

Butt Weld Long

Unit(mm)
Size A B C D E F G H
1/4″ 11 65 46 89 25 30 30 Rc1/8
3/8″ 17.5 73.5 56 105 28 37 37 Rc1/8
1/2″

Butt Weld Short

Unit(mm)
Size A B C D E F G H
1/4″ 11 65 46 44.4 25 30 30 Rc1/8
3/8″ 17.5 73.5 56 55 28 37 37 Rc1/8
1/2″
※Specification are subjected to change without prior notice.