DCF-F2 Series — Full Model Range
Certified "Ex db" flameproof protection with an IP67 rating — built to withstand an internal ignition without transmitting it to the surrounding atmosphere, for dust collection in Zone 1/2 hazardous areas from −40°C to +60°C.
Full Model Range
Ambient temperature −40°C to +60°C · Ex db IIC T6 Gb · IP67 · A2-70 fasteners
| Type | Model No. | Size (Inch) | DN Size | Ex-Proof Grade |
|---|---|---|---|---|
| Right-Angle | DCF-F2-2L-B | 3/4″ | DN20 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-20 | 3/4″ | DN20 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-25 | 1″ | DN25 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-40S | 1.5″ | DN40 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-50S | 2″ | DN50 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-62S | 2.5″ | DN65 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-76S | 3″ | DN80 | Ex db IIC T6 Gb |
| Right-Angle | DCF-F2-Z-102S.B | 3.5″ | DN90 | Ex db IIC T6 Gb |
| Male Thread | DCF-F2-ZM-20 | 3/4″ | DN20 | Ex db IIC T6 Gb |
| Male Thread | DCF-F2-ZM-25 | 1″ | DN25 | Ex db IIC T6 Gb |
| Male Thread | DCF-F2-ZM-40S | 1.5″ | DN40 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-25 | 1″ | DN25 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-40S | 1.5″ | DN40 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-50S | 2″ | DN50 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-62S | 2.5″ | DN65 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-76S | 3″ | DN80 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-102S.B | 3.5″ | DN90 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-Y-102S | 4″ | DN100 | Ex db IIC T6 Gb |
| Submerged | DCF-F2-YQ-76S | 3″ | DN80 | Ex db IIC T6 Gb |
| Submerged | DMY-F-II-80 | 3″ | DN80 | Ex db IIC T6 Gb |
| Straight-Through | DCF-F2-T-25SG | G1″ | DN25 | Ex db IIC T6 Gb |
| Straight-Through | DCF-F2-T-40SG | G1½″ | DN40 | Ex db IIC T6 Gb |
| Straight-Through | DCF-F2-T-50SG | G2″ | DN50 | Ex db IIC T6 Gb |
Product Standards
Certifications
🔍 Click to enlargeProduct Certification
DCF-F2 series · DCF-F2 series (Z/Y/T/ZM/2L-B variants, 20-115S sizes) · DMY-F2-II-80
| Certificate No. | 2024322307006147 |
|---|---|
| Issued by | Shanghai Inspection and Testing Institute of Instruments and Automation Systems Co., Ltd. (SITIIAS) |
| Issued | 2024-08-20 |
| Valid until | 2029-08-19 |
| Standards | GB/T 3836.1-2021, GB/T 3836.2-2021, GB/T 3836.31-2021 |
🔍 Click to enlargeProduct Certification
DCF-F2 Series (2L-B / Z / Y / YA / YQ / ZM / T variants) · DMY-F2-II-80
| Certificate No. | GYB25.1975X |
|---|---|
| Issued by | Shanghai Inspection and Testing Institute of Instruments and Automation Systems Co., Ltd. (NEPSI - National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation) |
| Issued | 2025-06-12 |
| Valid until | 2030-06-11 |
| Standards | GB/T 3836.1-2021, GB/T 3836.2-2021, GB/T 3836.31-2021, JB/T 5916-2013 |
Technical Drawings
🔒 Dimensions available on inquiryDMY-F2-II-80
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 240 mm |
| Seat height 1 | 🔒 |
| Seat height 2 | 🔒 |
| Seal bore | Ø85.5 mm |
| Inner step | 88 mm |
+14 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-102S.B(special O-ring)
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 254 mm |
| Flange thickness | 🔒 |
| Seat height 1 | 🔒 |
| Seat height 2 | 43 mm |
| Inner bore | Ø103 mm |
+15 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-102S.B(standard O-ring)
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 🔒 |
| Flange thickness | 27 mm |
| Seat height 1 | 🔒 |
| Seat height 2 | 43 mm |
| Inner bore | Ø103 mm |
+15 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-102S
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 255 mm |
| Flange thickness | 27 mm |
| Lip | 6.5 mm |
| Seat height 1 | 🔒 |
| Seat height 2 | 🔒 |
+18 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-25
| Overall height | 🔒 |
|---|---|
| Mounting spacing | 130 mm |
| Seat height 1 | 🔒 |
| Seat height 2 | 🔒 |
| Lip | 13 mm |
| Outlet bore | Ø35 mm |
+7 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-40S
| Overall height | 223 mm |
|---|---|
| Mounting spacing | 130 mm |
| Seat height 1 | 41 mm |
| Seat height 2 | 🔒 |
| Lip | 🔒 |
| Outlet bore | 🔒 |
+8 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-50S
| Mounting spacing | 185 mm |
|---|---|
| Overall height | 🔒 |
| Flange thickness | 25 mm |
| Lip | 7 mm |
| Seat height 1 | 🔒 |
| Seat height 2 | 🔒 |
+16 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-62S
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 240 mm |
| Flange thickness | 🔒 |
| Lip | 🔒 |
| Seat height 1 | 35 mm |
| Seat height 2 | 44 mm |
+17 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-76S(special O-ring)
| Mounting spacing | 🔒 |
|---|---|
| Overall height | 🔒 |
| Flange thickness | 🔒 |
| Seat height 1 | 35 mm |
| Seat height 2 | 43 mm |
| Inner bore | Ø89.5 mm |
+16 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Y-76S(standard O-ring)
| Overall height | 254 mm |
|---|---|
| Inlet flange height | 🔒 |
| Neck height | 35 mm |
| Flange thickness | 43 mm |
| Neck diameter | 🔒 |
| Body diameter | 🔒 |
+16 more dimensions
🔒 Dimensions available on inquiryDCF-F2-YA-76S
| Neck diameter | 🔒 |
|---|---|
| Mid diameter | Ø187.5 mm |
| Flange diameter | Ø220 mm |
| Bolt circle diameter | Ø220 mm |
| Base height | 🔒 |
| Mounting spacing | 🔒 |
+8 more dimensions
🔒 Dimensions available on inquiryDCF-F2-YQ-76S(standard O-ring)
| Overall height | 🔒 |
|---|---|
| Inlet height | 41 mm |
| Flange thickness | 🔒 |
| Neck diameter | 🔒 |
| Body diameter | Ø158 mm |
| Flange diameter | Ø182 mm |
+12 more dimensions
🔒 Dimensions available on inquiryDCF-F2-YQ-76S(special O-ring)
| Overall height | 240 mm |
|---|---|
| Inlet height | 41 mm |
| Flange thickness | 56 mm |
| Neck diameter | 🔒 |
| Body diameter | 🔒 |
| Flange diameter | 🔒 |
+12 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-20
| Overall height | 🔒 |
|---|---|
| Diaphragm cover diameter | Ø80 mm |
| Inlet height | 20 mm |
| Inlet face height | 22 mm |
| Outlet height | 🔒 |
| Base width | 🔒 |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-25
| Overall height | 171 mm |
|---|---|
| Inlet height | 24 mm |
| Inlet face height | 🔒 |
| Outlet height | 27 mm |
| Base length | 🔒 |
| Bolt spacing | 🔒 |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-40S
| Overall height | 230 mm |
|---|---|
| Inlet height | 🔒 |
| Inlet face height | 🔒 |
| Outlet height | 🔒 |
| Base length | 131 mm |
| Bolt spacing | 75 mm |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-50S
| Overall height | 241 mm |
|---|---|
| Inlet height | 🔒 |
| Inlet face height | 🔒 |
| Outlet height | 🔒 |
| Base length | 180 mm |
| Bolt spacing | 100 mm |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-62S
| Overall height | 🔒 |
|---|---|
| Inlet height | 49 mm |
| Inlet face height | 37 mm |
| Outlet height | 37 mm |
| Base length | 🔒 |
| Bolt spacing | 🔒 |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-76S
| Overall height | 🔒 |
|---|---|
| Inlet height | 🔒 |
| Inlet face height | 38 mm |
| Outlet height | 🔒 |
| Base length | 220 mm |
| Bolt spacing | 120 mm |
+2 more dimensions
🔒 Dimensions available on inquiryDCF-F2-ZM-20
| Overall height | 198 mm |
|---|---|
| Inlet pipe outer diameter | Ø27 mm |
| Inlet pipe seat | 🔒 |
| Inlet pipe bore | Ø20 mm |
| Inlet pipe chamfer | 🔒 |
| Outlet pipe outer diameter | 🔒 |
+9 more dimensions
🔒 Dimensions available on inquiryDCF-F2-ZM-25
| Overall height | 233 mm |
|---|---|
| Inlet pipe outer diameter | 🔒 |
| Inlet pipe seat | 🔒 |
| Inlet pipe bore | 🔒 |
| Inlet pipe chamfer | 3×30° |
| Outlet pipe outer diameter | Ø34 mm |
+9 more dimensions
🔒 Dimensions available on inquiryDCF-F2-ZM-40S
| Overall height | 284 mm |
|---|---|
| Inlet pipe outer diameter | 🔒 |
| Inlet pipe seat | 🔒 |
| Inlet pipe bore | 🔒 |
| Inlet pipe chamfer | 3×30° |
| Outlet pipe outer diameter | Ø48 mm |
+9 more dimensions
🔒 Dimensions available on inquiryDCF-F2-Z-20-C(304)
| Overall height | 160 mm |
|---|---|
| Diaphragm cover diameter | Ø78 mm |
| Inlet height | 🔒 |
| Inlet offset | 20 mm |
| Base length | 🔒 |
| Base width | 🔒 |
+1 more dimensions
Knowledge Base
DCF-F2 is the flameproof (Ex db) valve family. The letter after F2 gives the body style — Z right-angle, ZM male thread, Y immersed, T straight-through — the number is the size code, and a material suffix -C (304 stainless), -D (316 stainless) or -E (copper/zinc-limited alloy) can be added to any model. The full model and size list is in the SKU table on this page.
Flameproof (Ex d) pulse valves are offered from DN25 upward; DN20 and DN25 flameproof valves are available only from Xiechang. The dedicated flameproof cable connector uses a G1/2" thread.
