**Product Specifications**
  • Model No.: DN40-DN350
  • Material: Cast Iron
  • Pressure Rating: Low Pressure
  • Seal Type: Soft Sealing
  • Application: Regulation, Safety, Temperature Control, Flow Control
  • Usage Areas: Industrial, Water Treatment, and Household
  • Operating Temperature: Below 80°C
  • Structure Length: DIN3202f4/F5
  • Packaging: Plywood Wooden Case
  • Origin: China
  • Type: Straight-Through
  • Connection Type: Flanged
  • Actuator Type: Manual
  • Valve Stem Thread Position: Inside Gate Valve
  • Standards: DIN
  • Medium: Water, Gas, Oil
  • Flange Standard: DIN2501
  • Brand: GHL
  • Specifications: ASTM, ANSI, API, DIN, JIS
  • HS Code: 8481804090
**Product Description:** The gate valve is made of ductile iron with EPDM or NBR sealing. It features a high-strength and impact-resistant body and bonnet. The valve body and bonnet are coated with fusion-bonded epoxy to ensure long-term corrosion protection. The straight-through full-bore design minimizes flow resistance and avoids debris accumulation. The wedge inside and outside the valve is fully rubberized using vulcanized EPDM or NBR, making it suitable for potable water applications. A rubber gasket on the bonnet ensures longevity and protects the bolts from corrosion. All fasteners are isolated for added protection. The stem is made of stainless steel with rolling threads, offering high strength and excellent corrosion resistance. The valve includes a back-sealing mechanism that allows seal replacement under full operating pressure. A dust guard prevents contamination, and the valve is equipped with a handwheel or bare shaft with a square cap for easy operation. **Key Components and Materials:** - **Body and Bonnet:** Cast iron or ductile cast iron - **Disc:** Ductile cast iron with EPDM coating - **Bonnet:** Ductile cast iron - **Stem:** 2Cr13 / 420S - **Seat Material:** EPDM or Nitrile rubber - **Seal Ring:** Buna - **Bolts:** Stainless steel - **Thrust Bearing:** Tin bronze - **Dust Cover:** Buna - **Hand Wheel:** Cast iron **Technical Data Table:**
Name Materials
Valve Body Gray cast iron, ductile iron, cast steel
Gate Disc Ductile iron with EPDM or nitrile rubber coating
Hex Bolts Carbon steel
Seal Ring Buna
Bonnet Gray cast iron, ductile iron, cast steel
Valve Stem Stainless steel
"O" Ring Seal Buna
Thrust Bearing Tin bronze
Bolts Stainless steel
Pressure Cap Ductile iron, cast steel
Dust Cover Buna
Hand Wheel Cast iron
**Dimensions (in mm):**
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L 178 190 203 229 254 267 292 330 356 381 406 432 457 508
H 313 332 372 424 497 562 680 837 948 1010 1220 1280 1480 1665
H1 355 375 415 476 540 600 720 875 990 1050 1245 1310 1560
**Image:** DIN 3352 F4 Pn16 Ductile Iron Gate Valve

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