Wafer Type Marine Butterfly Valve

Size: 2″ (50mm) to 16″ (400mm)
Connection: Wafer – Between BS4504 PN10/16, ANSI 150 & JIS 5/10/15
Liner: EPDM | NBR | Viton
Operation: Lever | Gearbox | Pneumatic, Electric or Hydraulic Actuator

Wafer type Marine Butterfly Valve

Wafer type Marine Butterfly Valve with type approval by Lloyds, DNV, B.V, ABS, and GL. Available with the ductile iron body and Ali-bronze or stainless steel disc.

Al Bronze Wafer type marine butterfly valve drawing1

Al-Bronze Wafer type marine butterfly valve drawing

Wafer type Marine Butterfly Valve Standard

Valve Standard: MSS SP-67
API 609 Category A
BS EN593/BS5155
Nominal diameter: 1.5″-48″/DN40-DN1200
Working pressure: 10Bar/16Bar
Face-to-face: API 609 Table 1
ISO 5752 Series 20
EN 558 Series 20 (DIN 3202 T3 K1)
BS 5155 Series 4
Flange accommodation: ANSI B16.1 Class125/150
DIN 2501 PN6/10/16
EN1092-2 PN6/10/16
JIS B2220 5K/10K
Top Flange: ISO5211
Tightness check: API 598
ISO 5208,


Wafer type Marine Butterfly Valve Material

1-Body: Cast Iron, Ductile Iron or Cast Steel

2-Stem: Stainless Steel

3-Disc: DI or WCB with galvanized steel, Stainless Steel, Bronze

4-Gear: Ductile Iron


6-Busing: PTFE

7-O ring: NBR

8-Pin: Stainless Steel

The Service Temperature for Seat Material:

Rubber Seat Material Service Temperature range ℃ Kind of Fluid
NBR 0-70 sea water, fresh water, bilge, ballet, liquefied gas, lubricating oil, fuel oil, cargo oil, hydraulic oil
CR 0-70 air
EPDM 0-120 sea water, fresh water, acid gas
FKM 0-90 cargo oil

Wafer type Marine Butterfly Valve Valve Data

Ali-Bronze Wafer Type Marine Butterfly Valve Data

*The size is for 10K for your reference.
Please note that the above specifications are “general specifications” that pertain to the majority of our products. These specifications should only be used for general, informational purposes. The measurement/size of the goods delivered may be different from the data in the above table, please check with us when order placed.


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