TOYO’s full range of valve products

Basic Information

Manufacturer: KITZ Corporation (Japan), ISO 9001 certified

Brand: TOYO (RED-WHITE TOYO)

Applicable fluids: water, oil, air, steam

Prohibited use: flammable gases, toxic gases

Warranty: 1 year after leaving the factory

Unit: MPa, ℃ mm

Material and Product System

1. Bronze/brass valves

Type: Gate valve, globe valve, swing check valve, lift check valve, ball valve, filter, bottom valve

Pressure: 10K, Class 100/125/150/300, PN16/25

Size: 1/4 to 4 inches

Connection: Threads (Rc/NPT/BSP), Welding, Flanges

Features: Lead free version (LF), ASTM B62 material

2. Cast iron valves

Type: Gate valve, globe valve, swing check valve, clamp check valve, filter, ball valve

Pressure: 10K, Class 125, PN16

Size: 2-20 inches

Connection: flange

Features: Nylon lining, counterweight check valve

3. Ductile iron valves

Type: Gate valve, globe valve, check valve, filter, ball valve

Pressure: 10K/16K/20K

Size: 1/2-12 inches

Connection: thread, flange

Features: Bolt type valve cover, hard seal

4. Stainless steel valves (U/VA series)

Type: Gate valve, globe valve, check valve, ball valve, filter, clamp type check valve

Pressure: 10K/20K, Class 150/300

Size: 1/4-12 inches

Material: SCS14A (CF8), SCS14A (CF8M)

Features: Strong corrosion resistance, maximum temperature resistance of 425 ℃

5. Aluminum alloy/ductile iron butterfly valve

Type: Clamp type, protruding ear type

Pressure: 10K/16K/20K, Class 150/200, PN10/16

Size: 1.5-24 inches

Sealing: NBR, EPDM

Drive: handle, gear

Core specification parameters

1. Size range

Type and Size (inches)

Bronze/Brass 1/4-4

Cast iron/ductile iron 1/2-20

Stainless steel 1/4-12

Butterfly valve 1.5-24

2. Pressure level

JIS：5K、10K、16K、20K

ASME：Class 125、150、200、300、600、800

EN：PN16、PN25

3. Pressure temperature rating (key)

Bronze/brass (Class 125): 1.37MPa at 20 ℃, 0.86MPa at 200 ℃

Cast iron (10K): 1.4MPa below 120 ℃

Stainless steel (10K): 1.4MPa below 120 ℃, 1.0MPa at 300 ℃

Butterfly valve (rubber seat): EPDM up to 120 ℃, NBR up to 80 ℃

Connection method

Threads: Rc, NPT, BSP

Flanges: JIS, ASME, PN

Welding: socket welding

Clamp: Butterfly valve, check valve

Standards and Certification

Design standards: JIS B2011, JIS B2031, JIS B2032, ASME B16.34, MSS SP-80/70/71/85

Sealing: Non asbestos filling is standard configuration of bronze/cast iron

Key issues

Question 1: Which media is TOYO valve explicitly prohibited from being used for? What are the maximum safe operating temperatures for different materials?

Answer: It is strictly prohibited to use it for flammable or toxic gases; Bronze/cast iron valves have a maximum temperature of 230 ℃, stainless steel valves have a maximum temperature of 425 ℃, and rubber sealed butterfly valves have a maximum temperature of 120 ℃.

Question 2: What is the core difference between stainless steel VA series and U series? What are the corresponding pressures and scenarios?

Answer: The VA series is a flange connection, with a pressure of 10K/20K, Class 150/300, and a size of 1/2-10 inches, used for industrial corrosion-resistant conditions; The U series is a threaded connection with a pressure of 10K and a size of 1/4-2 inches, used for small civilian/light industry applications.

Question 3: What media and temperatures are suitable for NBR and EPDM seals of butterfly valves? What should be noted when selecting?

Answer: NBR is suitable for water and oil, with a temperature of * * ≤ 80 ℃; EPDM is suitable for water, steam, and air, ≤ 120 ℃ * *, and is strictly prohibited from being used for oil; The selection should match the medium and temperature to avoid premature sealing failure.