PRODUCT

2 inch CI PN16/150LB wafer style butterfly valve handle operated

2 inch CI PN16/150LB wafer style butterfly valve handle operated

Product Attributes :

Size: DN25-DN1200/1"-48"

Pressure: PN10/PN16/PN25/5K/10K

Standard: Flange: DIN3202, DIN2501 PN10/PN16, Face to face: BS5155,Top Flange: ISO5211

Product Description

Wafer Style Butterfly Valve DN50–DN1200 Concentric Rubber Seated Butterfly Valve with Lever / Gear / Actuator

China wafer type butterfly valve manufacturer — compact, lightweight and economical, PN10 / PN16 rated, DN50 to DN1200 (2″–48″), with EPDM / PTFE / NBR / Buna / Hypalon seats for water, seawater, air, oil, acids and alkalis. Factory-direct price, API & ISO certified, fast global shipping.

DN50–DN1200
Size Range

PN10 / PN16
Pressure Rating

API 598
Bubble-Tight Test

150 °C
Max Temperature

Get Factory-Direct Quote in 24 Hours View All Butterfly Valves

OEM / ODM accepted · EN 10204 3.1 material certificate · Pressure tested before shipment

Seat options: EPDM · PTFE · NBR · Buna-N · Hypalon
Disc options: Al-Bronze · CF8M · ductile iron · WCB
Design: API 609 / MSS SP-67 / EN 593 · Test: API 598

Wafer style butterfly valve DN50-DN1200 with lever handle, concentric rubber seated butterfly valve for water and seawater

Wafer type butterfly valve, ductile iron body, lever operated, PN10 / PN16, DN50–DN1200.

Compact & Reliable Wafer Style Butterfly Valve for General Industrial Service

Our wafer style butterfly valve is a concentric, resilient-seated quarter-turn valve designed for on-off and throttling service in waterworks, HVAC, marine, food and general industrial pipelines. The wafer body is clamped between two standard pipe flanges (DIN PN10/16/25, ANSI B16.1, JIS 10K, BS 10 Table D/E), making it the most compact, lightweight and cost-effective shut-off valve in its class — significantly shorter face-to-face and lighter than gate, globe or ball valves.

The precision-machined disc is centered in the resilient seat, delivering bubble-tight sealing with zero leakage under shell and seal pressure tests per API 598. A wide range of seat elastomers (EPDM, PTFE, Buna-N, NBR, Hypalon) and disc materials (Al-Bronze, CF8M stainless steel, ductile iron, WCB) allows the valve to be configured for virtually any medium and temperature. Operation options include lever handle, worm gear, pneumatic actuator and electric actuator for automated process control.

Key Features of the Wafer Type Butterfly Valve

Small & Lightweight

Wafer body saves face-to-face length and weight, easy installation and maintenance anywhere in the line.

Fast 90° Quarter Turn

Compact structure with fast 90° quarter-turn open / close for quick isolation and reliable daily operation.

Minimized Torque

Low operating torque reduces effort and allows energy-saving selection of smaller pneumatic or electric actuators.

Linear Flow Curve

Flow curve tending to a straight line gives excellent regulation performance for throttling and dosing lines.

Bubble-Tight Sealing

No leakage under shell and seal pressure test per API 598, with tens of thousands of open / close cycles proven.

Wide Material Selection

EPDM, PTFE, NBR, Buna and Hypalon seats with Al-Bronze, CF8M, ductile iron or WCB discs for water, sewage, seawater, air, vapor, food, medicine, oils, acids and alkalis.

Typical Applications of Wafer Type Butterfly Valves

Six mainstream service scenarios below show how the wafer butterfly valve is configured for water, HVAC, marine, sanitary, chemical and fire-protection duties.

Water Supply & Drainage

Municipal water plants, pumping stations, reservoirs and irrigation networks. EPDM seats suit potable water, sewage and sludge lines up to DN1200.

HVAC & Building Services

Chilled water, cooling tower and condenser water circuits. Compact wafer installation saves valuable space in crowded plant rooms and risers.

Marine & Shipbuilding

Seawater cooling, ballast and bilge systems. Al-Bronze disc with Hypalon or NBR seat resists saltwater corrosion and wear in marine duty.

Food & Pharmaceutical

Sanitary process lines for CIP media, syrups and clean water, where a smooth bore, non-toxic seat and quick cleaning are essential.

Chemical & Petrochemical

Mild acids, alkalis and organic solvents handled with PTFE seat and CF8M disc, with excellent regulation performance for dosing lines.

Fire Protection & General Industry

Fire mains, compressed air, low-pressure steam and fuel oil lines in refineries, power plants and manufacturing facilities.

Wafer Style Butterfly Valve Specifications

Parameter	PN10 (1.0 MPa)	PN16 (1.6 MPa)
Nominal pressure (MPa)	1.0	1.6
Nominal diameter (mm)	50–1200 (2″–48″)	50–1200 (2″–48″)
Shell test pressure (MPa)	1.5	2.4
Seal test pressure (MPa)	1.1	1.76
Applicable temperature	Up to 150 °C (depending on seat material)
Applicable medium	Water, sewage, sea water, air, vapor, food, medicine, oils, acids, alkalis, etc.
Flange standard	DIN PN10 / PN16 / PN25; ANSI B16.1 150LB; JIS 10K; BS 10 Table D / E
Operating mode	Manual lever handle, worm gear, pneumatic actuator, electric actuator

Large sizes DN350 and above are normally supplied with worm gear or actuator operation because of the higher operating torque.

Design & Manufacturing Standards

Item	Standard
Design & manufacture	MSS SP-67, API 609, EN 593
Flange connection	DIN PN10/16/25, ANSI B16.1, BS 4504, ISO PN10/16, JIS B2212 / B2213, BS 10 Table D / E
Face to face dimension	API 609, ISO 5752 Series 20, BS 5155
Test & inspection	API 598, ISO 5208

Material of Construction (Parts List)

No.	Part Name	Material
1	Body	Cast iron / ductile iron / Al-Bronze
2	Disc	Al-Bronze / CF8M / ductile iron / WCB
3	Seat	EPDM / PTFE / Buna / NBR / Hypalon
4	Stem	Carbon steel / SS316 / SS304
5	Bushing	PTFE / lubricating type
6	O-ring	EPDM / PTFE / Buna / NBR / Hypalon
7	Pin	SS316 / SS416 / SS304

PTFE seats offer superior chemical resistance; EPDM suits water and steam service; NBR / Buna is recommended for oils and fuels; Hypalon performs well with oxidizing acids and seawater. Contact our engineers for material selection guidance.

Available Configurations: Lever, Gear, PTFE Lined and Stainless

Lever Handle

Manual quarter-turn lever, typically DN50–DN300.

Worm Gear

Geared operation for DN350–DN1200 and high torque duty.

PTFE fully lined wafer butterfly valve for acids alkalis and chemical process lines

PTFE Lined

Fully lined body and disc for acids, alkalis and solvents.

Stainless Steel

CF8M / SS316 disc for sanitary and corrosive media.

Why Buy Wafer Butterfly Valves from Us

Experienced butterfly valve manufacturer and supplier in China with OEM / ODM support
Seat and disc material combinations for water, seawater, oil, steam and chemicals
Flange standards DIN / ANSI / JIS / BS, face-to-face per API 609
Extended neck for insulation, epoxy or nylon coating, rubber lining options
Pneumatic or electric actuator with limit switch box and positioner
Large diameter DN800–DN1200 for waterworks and infrastructure projects
Every valve pressure tested before shipment, EN 10204 3.1 certificate available

Request a Quotation

Send us your valve data sheet

Tell us nominal diameter, pressure rating, flange standard, medium, temperature and operation type. Our technical team replies with drawings, material certificates and a factory-direct quotation within 24 hours.

Single replacement valve or bulk supply for an EPC project — both are welcome.

Frequently Asked Questions (FAQ)

What is a wafer style butterfly valve?

A wafer style butterfly valve is a quarter-turn valve with a thin, disc-shaped body that is sandwiched between two pipe flanges and secured by long through-bolts. It is the most compact and economical butterfly valve design, suitable for on-off and throttling service in water, air, oil and mild chemical lines.

Which seat material should I choose — EPDM, NBR, PTFE or Hypalon?

EPDM is best for water, sewage and steam (up to 150 °C); NBR / Buna-N for oils, fuels and hydrocarbons; PTFE for aggressive acids, alkalis and solvents; Hypalon for oxidizing chemicals and seawater. Tell us your medium and temperature and we will recommend the right combination.

What sizes are available for this wafer butterfly valve?

The nominal diameter range is DN50 to DN1200 (2 inch to 48 inch), rated PN10 or PN16 (equivalent to 150LB class). Large diameters are typically supplied with worm gear or actuator operation for easy torque handling.

What is the difference between wafer type and lug type butterfly valve?

Wafer type is clamped between two flanges — lighter, shorter and cheaper, ideal for general shut-off. Lug type has threaded lugs allowing dead-end service and removal of one side piping. For bidirectional dead-end applications choose lug type; otherwise wafer offers the best value.

Can the valve be automated with pneumatic or electric actuators?

Yes. We supply the valve with double-acting or spring-return pneumatic actuators, or electric actuators with 4-20mA modulation, limit switch box and positioner — including fail-safe configurations for critical process lines.

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