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Product Specifications:
| Item | Instrumentation Check Valve |
| 3-a Compliance | Not Rated |
| Application | Fixed Cracking Pressure, General Purpose |
| Application - Valves | Fixed Cracking Pressure, General Purpose |
| Body Material | Stainless Steel |
| Check Mechanism | Poppet |
| Connection Size - Side 1 | 12 mm |
| Connection Size - Side 2 | 12 mm |
| Connection Type | Let Lok x Let Lok |
| Connection Type - Side 1 | Let-Lok |
| Connection Type - Side 2 | Let-Lok |
| Cracking Pressure | 0.33 psi |
| Flow Coefficient (cv) | 1.68 |
| For Media | Chemicals, Gas, Oil, Water |
| Hex Size | 1" |
| Includes Counterweight | No Counterweight |
| Length | 3.031" |
| Max. Pressure | 3000 psi |
| Max. Pressure (cwp) | 3000 psi |
| Max. Temp. | 375°F |
| Max. Water Pressure | 3000 psi |
| Mechanism And Body Design | Inline Spring |
| Media Temperature Range | -10°F to +375°F |
| Min. Temp. | -10°F |
| Mounting Orientation | Horizontal, Vertical |
| Operating Temperature - Maximum | 375°F |
| Overall Length | 3.03" |
| Pipe Size, Tube Size | 12 mm |
| Poppet Material | Stainless Steel |
| Poppet Material Grade | Grade 316 |
| Seal Material | FKM |
| Seat Material | Stainless Steel |
| Seat Material Grade | Grade 316 |
| Silent Check | Standard |
| Spring Material | Stainless Steel |
| Spring Material Grade | Grade 302 |
| Temp. | -10°F to +100°F |
| Vacuum Service Rating | Not Rated |
| Valve Body Style | Inline |
| Valve Series | H400 Series |
| Valve Ways | 2-Way |
Shipping Info:
| Ship weight (kg) | 0.18 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 7.7 |
| Ship width (cm) | 2.54 |
| Country of Origin | IL |
Product Variants
| Product | Model | Connection Type | Cracking Pressure | Seal Material | Hex Size | Pipe Size, Tube Size | Max. Pressure | Spring Material Grade | Max. Temp. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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H-400-SS-L-1-1/3PSI | Let Lok x Let Lok | 0.33 psi | FKM | 1 3/8" | 1" | 2000 psi | Grade 302 | 375°F | €1,509.25 | |
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H-410-SS-N-1/2-1/3PSI | FNPT x FNPT | 0.33 psi | FKM | 1 1/8" | 1/2" | 3000 psi | Grade 302 | - | €335.70 | |
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H-400HP-SS-L-1/2-1PSI | Let Lok x Let Lok | 1 psi | FKM | 1" | 1/2" | 6000 psi | Grade 304 | 400°F | €326.01 | |
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H-400-SS-L-1/2-1PSI | Let Lok x Let Lok | 1 psi | FKM | 1" | 1/2" | 3000 psi | Grade 302 | 375°F | €381.32 | |
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H-400HP-SS-L-1/2-25PSI | Let Lok x Let Lok | 25 psi | FKM | 1" | 1/2" | 6000 psi | Grade 304 | 400°F | €314.78 | |
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H-400-SS-L-1/2-1/3PSI | - | 0.333 psi | Fluorocarbon Fkm | 15/16" | 1/2" | 3000 psi | Grade 302 | 375°F | €370.46 | |
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H-480-SS-N-1/2-1/3PSI | MNPT x MNPT | 0.33 psi | FKM | 1" | 1/2" | 3000 psi | Grade 302 | 375°F | €380.10 |
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Contact us
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HAM-LET H-400-SS-L-12MM-1/3PSI Instrumentation Check Valve, Stainless Steel, 12 mm, Inline Spring
€356.77 /unit



