• CKD LGD1*/LGD2* Air Operated Valve for Process Gas (Metal Diaphragm)
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CKD LGD1*/LGD2* Air Operated Valve for Process Gas (Metal Diaphragm)

CKD LGD1*/LGD2* Air Operated Valve for Process Gas (Metal Diaphragm)

CKD LGD1*/LGD2* forged-body metal diaphragm air-operated valve for inert and process gas, NC or NO, 1/4 in and 1/2 in JXR-equivalent or bite fittings.

Key features

  • Forged SUS316L body, Ni-Co alloy metal diaphragm and PCTFE seat
  • Seat and external leakage 1.0x10^-10 Pa m3/s (He) or less
  • Connections: JXR male/female equivalent (connectable to VCR) or bite fittings (Swagelok equivalent)
  • NC (1) or NO (2) actuation; pilot port M5
  • Order example: LGD11-4RM

Specifications

Fluid Inert gas, process gas
Operating pressure 1.3x10^-6 Pa(abs) to 0.99 MPa(G)
Fluid / ambient temperature 5 to 80 C
Pilot pressure NC 0.4-0.6 MPa, NO 0.4-0.5 MPa
Pilot port M5
Wetted materials SUS316L, Ni-Co alloy, PCTFE
Mass 0.23 kg (LGD1), 0.57 kg (LGD2)
Source CKD Korea catalog CB-03-1SK-9, p. 1220-1222
LGD11-4RM Size: 1/4 in | Action: NC | Connection: 1/4 in JXR male equiv. | Cv: 0.3
LGD11-4R Size: 1/4 in | Action: NC | Connection: 1/4 in JXR female equiv. | Cv: 0.3
LGD11-4S Size: 1/4 in | Action: NC | Connection: 1/4 in bite fitting | Cv: 0.3
LGD12-4RM Size: 1/4 in | Action: NO | Connection: 1/4 in JXR male equiv. | Cv: 0.3
LGD12-4R Size: 1/4 in | Action: NO | Connection: 1/4 in JXR female equiv. | Cv: 0.3
LGD12-4S Size: 1/4 in | Action: NO | Connection: 1/4 in bite fitting | Cv: 0.3
LGD21-8RM Size: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in JXR male equiv. | Cv: 0.7
LGD21-8R Size: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in JXR female equiv. | Cv: 0.7
LGD21-6S Size: 1/2 in (3/8 in) | Action: NC | Connection: 3/8 in bite fitting | Cv: 0.65
LGD21-8S Size: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in bite fitting | Cv: 0.7
LGD22-8RM Size: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in JXR male equiv. | Cv: 0.7
LGD22-8R Size: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in JXR female equiv. | Cv: 0.7
LGD22-6S Size: 1/2 in (3/8 in) | Action: NO | Connection: 3/8 in bite fitting | Cv: 0.65
LGD22-8S Size: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in bite fitting | Cv: 0.7
Process Gas ValvesCKD
14 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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CKD LGD1*/LGD2* Air Operated Valve for Process Gas (Metal Diaphragm)

Brand CKD·Process Gas Valves

Available part numbers (14)

LGD11-4RM, LGD11-4R, LGD11-4S, LGD12-4RM, LGD12-4R, LGD12-4S, LGD21-8RM, LGD21-8R, LGD21-6S, LGD21-8S + 4 more — see full table ↓

How to order

Send the CKD part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
LGD11-4RMSize: 1/4 in | Action: NC | Connection: 1/4 in JXR male equiv. | Cv: 0.3
LGD11-4RSize: 1/4 in | Action: NC | Connection: 1/4 in JXR female equiv. | Cv: 0.3
LGD11-4SSize: 1/4 in | Action: NC | Connection: 1/4 in bite fitting | Cv: 0.3
LGD12-4RMSize: 1/4 in | Action: NO | Connection: 1/4 in JXR male equiv. | Cv: 0.3
LGD12-4RSize: 1/4 in | Action: NO | Connection: 1/4 in JXR female equiv. | Cv: 0.3
LGD12-4SSize: 1/4 in | Action: NO | Connection: 1/4 in bite fitting | Cv: 0.3
LGD21-8RMSize: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in JXR male equiv. | Cv: 0.7
LGD21-8RSize: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in JXR female equiv. | Cv: 0.7
LGD21-6SSize: 1/2 in (3/8 in) | Action: NC | Connection: 3/8 in bite fitting | Cv: 0.65
LGD21-8SSize: 1/2 in (3/8 in) | Action: NC | Connection: 1/2 in bite fitting | Cv: 0.7
LGD22-8RMSize: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in JXR male equiv. | Cv: 0.7
LGD22-8RSize: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in JXR female equiv. | Cv: 0.7
LGD22-6SSize: 1/2 in (3/8 in) | Action: NO | Connection: 3/8 in bite fitting | Cv: 0.65
LGD22-8SSize: 1/2 in (3/8 in) | Action: NO | Connection: 1/2 in bite fitting | Cv: 0.7

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