Diaphragm Valve Series

YAJ-75

YNF Manual Diaphragm Valve

Nominal Diameter:
⌀ 12.7 — 152.4

Valve Body Material:
304/316L

Drive Type:
Manual

Sealing Materials:
EPDM / PTFE

Pressure Range:
1.0Mpa

Applicable Temperature:
-10 — 150℃

Valve Body Process
Casting / Forging

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process

Connection Method
Quick Installation / Welding 

YAJ-80

YNF Pneumatic Diaphragm Valve（Plastic Actuator）

Nominal Diameter:
⌀ 12.7 — 152.4 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-81

YNF Pneumatic Diaphragm Valve（Stainless Steel Actuator）

Nominal Diameter:
⌀ 12.7 — 152.4 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-83

YNF Pneumatic Diaphragm Valve（Stainless Steel Actuator / With Feedback）

Nominal Diameter:
⌀ 12.7 — 152.4 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YNF Pneumatic Diaphragm Valve（Stainless Steel Actuator / With Sampling）

Nominal Diameter:
⌀ 25.4×12.7
⌀ 38.1×12.7
⌀ 50.8×12.7
⌀ 63.5×12.7 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-79

YNFS Three-way Manual Diaphragm Valve

Nominal Diameter:
⌀ 12.7 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Manual 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.4 — 0.5Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-82

YNFS Three-way Manual Diaphragm Valve（Plastic Actuator）

Nominal Diameter:
⌀ 12.7 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-101

YNFS Three-way Manual Diaphragm Valve（Stainless Steel Actuator）

Nominal Diameter:
⌀ 12.7 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YNFS Three-way Manual U-shaped Diaphragm Valve

Nominal Diameter:
⌀ 19.05 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Manual 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YNF-DT Manual Multi-channel Diaphragm Valve

Nominal Diameter:
⌀ 25.4 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Manual 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YNF-DT Pneumatic Multi-channel Diaphragm Valve（Stainless Steel Actuator）

Nominal Diameter:
⌀ 12.7 — 63.5 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

I-Body Pneumatic Sampling Diaphragm Valve

Nominal Diameter:
⌀ 25.4×12.7
⌀ 38.1×12.7
⌀ 50.8×12.7
⌀ 63.5×12.7 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-87

YNFD Manual Tank Bottom Diaphragm Valve

Nominal Diameter:
⌀ 19.05 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Manual 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-89-1

YNFD Pneumatic Tank Bottom Diaphragm Valve（Plastic Actuator）

Nominal Diameter:
⌀ 19.05 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding 

YAJ-89

YNFD Pneumatic Tank Bottom Diaphragm Valve（Stainless Steel Actuator）

Nominal Diameter:
⌀ 19.05 — 101.6 

Valve Body Material:
304/316L 

Drive Type:
Pneumatic 

Sealing Materials:
EPDM / PTFE 

Pressure Range:
0.6 — 1.0Mpa 

Applicable Temperature:
-10 — 150℃ 

Valve Body Process
Casting / Forging 

Valve Body Ra Value
0.38/0.51/0.6
Optional electrolytic polishing process 

Connection Method
Quick Installation / Welding