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Product Specifications:
| Item | Instrumentation Check Valve |
| 3-a Certified | Not Rated |
| Body Material | Stainless Steel |
| Check Mechanism | Poppet |
| Connection Gender Side 2 | Male |
| Connection Gender-side 1 | Female |
| Connection Size-side 1 | 1/4" |
| Connection Size-side 2 | 1/4" |
| Connection Type | FNPT x MNPT |
| Connection Type-side 1 | NPT |
| Connection Type-side 2 | NPT |
| Cracking Pressure | 1 psi |
| Flow Coefficient Cv | 0.47 |
| For Media | Chemicals, Gas, Oil, Water |
| Hex Size | 5/8" |
| Included Counterweight | No Counterweight |
| Length | 2 3/8" |
| Max. Operating Temp. | 375°F |
| Max. Pressure | 3000 psi |
| Max. Pressure (cwp) | 3000 psi |
| Max. Steam Pressure | 3000 psi |
| Max. Temp. | 375°F |
| Mechanism And Body Design | Inline Spring |
| Media Temp. | -10°F to +375°F |
| Min. Temp. | -10°F |
| Mounting Orientation | Horizontal, Vertical |
| Overall Length | 2.38" |
| Pipe Or Tube Size | 1/4" |
| Pipe Size, Tube Size | 1/4" |
| 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 |
| Vacuum Service Rating | Not Rated |
| Valve Body Style | Inline |
| Valve Series | H400 Series |
| Valve Ways | 2-Way |
Shipping Info:
| Ship weight (kg) | 0.08 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 6.03 |
| Ship width (cm) | 2.54 |
| Country of Origin | IL |
Product Variants
| Product | Model | Cracking Pressure | Hex Size | Pipe Size, Tube Size | Max. Pressure | Spring Material Grade | Max. Temp. | Media Temp. | Connection Size-side 1 | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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H-400-SS-L-1-1/3PSI | 0.33 psi | 1 3/8" | 1" | 2000 psi | Grade 302 | 375°F | -10°F to +375°F | 1" | €1,617.06 | |
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H-410-SS-N-1/2-1/3PSI | 0.33 psi | 1 1/8" | 1/2" | 3000 psi | Grade 302 | - | -10°F to +375°F | 1/2" | €335.70 | |
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H-400HP-SS-L-1/2-1PSI | 1 psi | 1" | 1/2" | 6000 psi | Grade 304 | 400°F | -10°F to +400°F | 1/2" | €326.01 | |
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H-400-SS-L-1/2-1PSI | 1 psi | 1" | 1/2" | 3000 psi | Grade 302 | 375°F | -10°F to +375°F | 1/2" | €381.32 | |
![]() |
H-400HP-SS-L-1/2-25PSI | 25 psi | 1" | 1/2" | 6000 psi | Grade 304 | 400°F | -10°F to +400°F | 1/2" | €314.78 | |
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H-400-SS-L-1/2-1/3PSI | 0.333 psi | 15/16" | 1/2" | 3000 psi | Grade 302 | 375°F | - | - | €370.46 | |
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H-480-SS-N-1/2-1/3PSI | 0.33 psi | 1" | 1/2" | 3000 psi | Grade 302 | 375°F | -10°F to +375°F | 1/2" | €380.10 |
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HAM-LET H-415-SS-N-1/4-1PSI Instrumentation Check Valve, Stainless Steel, 1/4 in, FNPT x MNPT, Inline Spring
€107.03 /unit




