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Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat

The 1121 series butterfly valve is a wafer-type valve with a cast iron body, stainless steel disc and vulcanised NBR seat. It can be used to isolate or control hydrocarbon, fuel, water, natural gas, oil, compressed air and glycol systems.
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Réf.
CONF1121050
(Indicative price) €82.63
Details

Concentric cast iron butterfly valves 



Our range of concentric cast iron butterfly valves contain both wafer and lug types that can be used between flanges PN10/16, ANSI 150 up to DN600, and JIS 10K up to DN300.



The body of our butterfly valves is made from epoxy-coated GG25 cast iron (GGG40 above DN600), and our soft seats and seals are made with vulcanized EPDM or vulcanized NBR. The vulcanization of the seat increases mechanical strength, which helps avoid creeping and wrenching. EPDM can withstand temperatures from – 10 °C up to + 110°C (with a transient peak at + 130°C), whereas our vulcanized NBR seats can withstand + 80°C. Our valves can tolerate pressures of 16 bar up to DN300, and 10 bar above. Our valves are fitted with nickel-plated ductile iron or stainless steel discs that are held in place thanks to shank grooves, which help avoid mechanical slack during use. The one-piece axis is kept airtight by two levels of PTFE and NBR seals. The ISO 5211 mounting pad allows easy mounting of pneumatic or electric actuators, or manual gearboxes. These valves can be used with a wide variety of fluids, including hot and cold water, demineralized water, alcohol, lime milk, mercury, alkaline solutions, sodium hydroxide… They are also suitable for gas such as air, nitrogen, etc.


Details
Details
Option certificate 3.1 Yes
DN inches NPS 2''
DN metric 50/60
Construction standard API 609
CE risk category III Module H
Type of paint Epoxy
Paint coating thickness (µm) 80.00
EN face-to-face standard EN 558 Series 20
DIN face-to-face standard DIN 3202 Part.3 Series K1
ISO face-to-face standard ISO 5752 Series 20
Tightness test standard API 598
Type of seat Vulcanized
Notch plate Yes
Opening device Handle
Application Air conditioning / Heating
Shaft/stem matérial Stainless steel AISI 416
Lockable Yes
Square, star (mm) Square 9 mm
Torque (Nm) 16.0
DN 50
Face to Face (mm) 43.0
Fluid Hot water / Cold water / Drinking water
Kv (m³/h) 98.0
Seat NBR
Body material Cast iron
Disc material Stainless steel ASTM A351 CF8M
ISO pad 5211 F05
PS (bar) 16
Connections Between flanges PN10/16 #150
TS max (°C) 80
TS min (°C) -10
Butterfly valve design Concentric
Wafer/lug Wafer
Through shaft Yes
Warranty period 2 years
CE Yes
Handle material Aluminium

Configurations

Product Reference Price Stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN32-40 1121040 €82.62
256 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN50 1121050 €101.82
221 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN65 1121065 €108.70
416 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN80 1121080 €125.18
289 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN100 1121100 €191.00
242 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN125 1121125 €230.05
253 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN150 1121150 €305.18
271 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN200 1121200 €528.58
56 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN250 1121250 €1,031.38
109 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat lever DN300 1121300 €1,215.88
35 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat gearbox DN350 1121350 €2,465.55
9 pcs available in stock
Cast iron butterfly valve 1121 wafer CF8M disc/NBR seat gearbox DN400 1121400 €3,269.38
13 pcs available in stock