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LN-H71-Wafer check valve PN40
Product Summary
WENZHOU LEINA VALVE CO., LTD. Check Valve Swing • Y-Type • Wafer • Vertical • 800 WOG / PN16–PN40 • Threaded & Flanged CE CertifiedISO 9001800 WOG / PN16–PN401/4" – 6"SS316 / CF8Swing / Y-Type / Wafer 3000 m² Own Workshop 50+ CNC Machines 100% Pressure Tested Export to 60+ Countries Product ...
Basic Properties
Place of Origin:
China
Brand Name:
Leina
Model Number:
LN-H71
Trading Properties
Minimum Order Quantity:
1
Payment Terms:
L/C,D/P,T/T
Product Description
|
WENZHOU LEINA VALVE CO., LTD.
Check Valve
Swing • Y-Type • Wafer • Vertical • 800 WOG / PN16–PN40 • Threaded & Flanged
CE CertifiedISO 9001800 WOG / PN16–PN401/4" – 6"SS316 / CF8Swing / Y-Type / Wafer |
|
| 3000 m² Own Workshop |
50+ CNC Machines |
100% Pressure Tested |
Export to 60+ Countries |
|
|
Product Parameters
Type Selection
Choose the pattern by what matters most in the line: pressure drop, closing speed, face-to-face length or installation attitude.
| Type 型式 | Seat Angle 结构 | Pressure Drop 压损 | Installation 安装 | Best For 推荐场合 |
| Swing 旋启式 | Hinged disc, horizontal seat | Lowest | Horizontal (vertical with spring) | Water mains, pump discharge, general service |
| Y-Type Y 型 | Disc at 45° in a branch | Low | Horizontal and vertical | Vertical risers, pulsating flow, tight spaces |
| Wafer 对夹式 | Spring disc clamped between flanges | Medium | Horizontal (vertical with spring) | Large-diameter water and utility lines |
| Vertical 立式 | Lift disc, guided in the body | Medium | Vertical only | Small-bore and instrument piping |
Swing Check Valve Dimensions
Unit: mm · threaded swing check valve, 800 WOG. L = face-to-face (±1 mm), Ød = bore, H = height.
| Size | 1/2" | 3/4" | 1" | 1-1/4" | 1-1/2" | 2" |
| L | 60 | 78 | 84 | 94 | 104 | 122 |
| Ød | 15 | 20 | 25 | 32 | 40 | 48 |
| H | 41.5 | 45 | 49 | 53.5 | 58.5 | 67 |
Y-Type Check Valve Dimensions
Unit: mm · threaded Y-type check valve, 800 WOG. L = face-to-face (±1 mm), Ød = bore, H = height.
| Size | 1/2" | 3/4" | 1" | 1-1/4" | 1-1/2" | 2" | 2-1/2" | 3" |
| L | 65 | 75 | 90 | 110 | 120 | 140 | 190 | 205 |
| Ød | 15 | 20 | 25 | 32 | 38 | 48 | 65 | 78 |
| H | 44.7 | 52.1 | 65.7 | 70 | 79.5 | 95.5 | 125 | 144.5 |
Wafer Check Valve Dimensions
Unit: mm · wafer check valve, PN16 / PN40. Ød = bore, L = face-to-face, ØC = body OD, H = height including the lifting eye.
| Size | 2" | 2-1/2" | 3" | 4" | 5" | 6" | 8" | 10" | 12" |
| Ød | 30 | 40 | 52 | 72 | 93 | 115 | 157 | 195 | 230 |
| L | 19 | 19 | 19 | 19 | 19 | 19 | 29 | 29 | 38 |
| ØC | 108 | 128 | 143 | 163 | 193 | 219 | 274 | 329 | 380 |
| H | 105 | 120 | 145 | 150 | 170 | 195 | 260 | 300 | 320 |
Design Standards
| Design & Manufacture | ASME B16.34 |
| Wall Thickness | ASME B16.34 |
| Pipe Thread | ASME B1.20.1, BS 21 |
| Thread Standard | DIN 2999 / ISO 228-1, BS 21, B 0203 / ISO 7-1 |
| Inspection & Testing | MSS SP-110, EN 12266 |
Bill of Materials
Shown for the swing check valve in the standard SS316 (CF8M) configuration; the Y-type and wafer versions use the same material set with a spring and a different disc. Exploded-view numbers 1–7 refer to the drawing below.
| No. | Part Name 零件名称 | Material 材质 |
| 1 | 阀体 / Body | CF8M (SS316) |
| 2 | 阀瓣 / Disc | VITON / FKM faced |
| 3 | 阀盖 / Cap | CF8M (SS316) |
| 4 | 垫圈 / Washer | SUS304 |
| 5 | 双头螺栓 / Bolt | SUS304 |
| 6 | 垫片 / Seat | PTFE |
| 7 | 插销 / Pin | SUS316 |
Frequently Asked Questions
The questions our overseas customers ask most often. If yours is not here, just send us a message — we reply within 12 working hours.
Q1. Are you a factory or a trading company?
We are a professional manufacturer — Wenzhou Leina Valve Co., Ltd. — located in Wenzhou Economic & Technological Development Area, Zhejiang, China, with our own 3000 m² workshop, more than 50 sets of CNC machines and our own pressure-testing facilities. You are very welcome to visit us at any time.
Q2. What is your MOQ (minimum order quantity)?
Our MOQ is negotiable and trial orders are very welcome. We would rather start with a small order and grow together with our customers. Please tell us the valve type, size, material and quantity you need, and we will confirm the best possible arrangement.
Q3. Can you produce according to our own drawing or sample?
Yes. OEM and ODM are both available. Send us drawings, samples or detailed specifications and our engineering team — working with 3D modelling and finite element analysis — will develop the valve accordingly. Custom nameplate, logo, packing and even a customer-branded carton are all supported.
Q4. How do you guarantee the quality, and what about the warranty?
Every valve is 100% shell-tested and seat-tested before packing, to MSS SP-110 / EN 12266. The factory is ISO 9001 certified and CE approved; MTC (Mill Test Certificate) and 3.1 material certificates can be issued for each shipment, and third-party inspection (SGS, BV, TUV) is welcome at our works. We give a 12-month warranty against manufacturing defects — if a problem occurs, send us photos or a test report and we will supply replacement parts or a replacement valve in the next shipment.
Q5. What are the packing, shipping and payment terms?
Standard export packing is inner plastic bag → carton → sea-worthy plywood case; neutral or customer-branded packing on request. We normally ship from Ningbo or Shanghai port by sea (FCL / LCL) or by air, and by courier for samples. Payment: T/T, L/C at sight, Western Union; price terms FOB, CFR, CIF and EXW.
Product Details
Parameter:
Inspection & Testing
Value:
MSS SP-110, EN 1226
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