SPIRAX SARCO · CHECK VALVES
Spirax Sarco DCV4 Stainless Steel Disc Check Valve – IBR Certified Wafer Pattern
Spirax Sarco DCV4 stainless steel disc check valve for steam, water & process lines. IBR certified, DN15-DN100. Get quote from PC Engineering.
Overview
The Spirax Sarco DCV4 is a stainless steel disc check valve designed in a wafer pattern for installation between ASME flanges. It prevents reverse flow in process lines, hot water systems, steam lines, and condensate systems. The valve opens under fluid pressure and closes automatically via spring action before reverse flow occurs.
Constructed from austenitic stainless steel (ASTM A351 CF3M body), the DCV4 is built for demanding industrial environments. It comes standard with a metal-to-metal seat suitable for steam applications. Optional soft seats (Viton or EPDM) are available for oil, air, gas, and water services.
The DCV4 complies with Indian Boiler Regulations 1950 (IBR) and conforms to EN 558 Part 2, Series 52 for face-to-face dimensions. IBR certification and EN 10204 3.1 material certification are available on request.
Key Features
- Wafer pattern design for compact installation between ASME 150 or ASME 300 flanges
- Full stainless steel construction (body, disc, spring retainer)
- IBR certified – compliant with Indian Boiler Regulations 1950
- Standard metal-to-metal seat for steam service; optional Viton/EPDM soft seats
- High temperature spring option for service up to 400°C
- Can be installed in any plane when fitted with spring
- Low opening pressure – as low as 2.5 mbar without spring in vertical installation
- Standard shut-off conforms to EN 12266-1 Rate E; Rate D available on request
Specifications
| Parameter | Value | ||||||
|---|---|---|---|---|---|---|---|
| Sizes Available | DN15, DN20, DN25, DN40, DN50, DN80, DN100 | ||||||
| Flange Rating | ASME 150 / ASME 300 | ||||||
| Body Material | Austenitic stainless steel ASTM A351 CF3M | ||||||
| Disc Material | Austenitic stainless steel ASTM A276 316 | ||||||
| Spring Material | SS BS 2056 316 S42 (standard) / Nimonic 90 (high temp) | ||||||
| Max Allowable Pressure (PMA) | 49 bar g @ 37°C | ||||||
| Max Allowable Temperature (TMA) | 400°C @ 29 bar g | ||||||
| Min Allowable Temperature | -29°C | ||||||
| Max Operating Temp (Standard Spring) | 300°C @ 31.5 bar g | ||||||
| Max Operating Temp (High Temp Spring) | 400°C @ 29 bar g | ||||||
| Viton Seat Temp Range | -25°C to +205°C | ||||||
| EPDM Seat Temp Range | -40°C to +120°C | ||||||
| Face-to-Face Standard | EN 558 Part 2, Series 52 | ||||||
| Shut-off Standard | EN 12266-1 Rate E (standard); Rate D on request | ||||||
| Certification | IBR, EN 10204 3.1 (on request) | ||||||
| Size | A (mm) | B (mm) | C (mm) | D (mm) | Weight (kg) | ||
| DN15 | 54 | 47 | 38 | 25 | 0.24 | ||
| DN20 | 67 | 57 | 46 | 31 | 0.41 | ||
| DN25 | 73 | 67 | 54 | 35 | 0.54 | ||
| DN40 | 95 | 86 | 76 | 45 | 1.15 | ||
| DN50 | 111 | 105 | 95 | 56 | 1.84 | ||
| DN80 | 149 | 136 | 130 | 71 | 3.69 | ||
| DN100 | 181 | 174 | 160 | 80 | 5.70 | ||
| DN | 15 | 20 | 25 | 40 | 50 | 80 | 100 |
| Kv | 4.4 | 7.5 | 12 | 26 | 39 | 84 | 150 |
Applications
The DCV4 disc check valve is suitable for a wide range of industrial applications:
- Steam and condensate systems in power plants, refineries, and chemical plants - Hot water circulation systems - Process lines in pharmaceutical, food & beverage, and textile manufacturing - Compressed air and gas lines (with appropriate soft seat) - Oil and fuel transfer lines (with Viton seat) - Any application requiring non-return flow protection in stainless steel piping
Product Images
Frequently Asked Questions
Get a Quote
Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco DCV4 Disc Check Valve. Call us or fill in our inquiry form — our engineers will respond within 24 hours.
More from Spirax Sarco
- Spirax Sarco DCV41 Food+ Austenitic Stainless Steel Disc Check Valve
- Spirax Sarco DP143 / DP143H Pilot Operated Pressure Reducing Valve - Cast Steel Body - IBR Certified
- Spirax Sarco DP163 Pilot Operated Pressure Reducing Valve – Stainless Steel PRV for Steam
- Spirax Sarco DP27S & DP27SY Pilot Operated Pressure Reducing Valves – IBR Approved
- Spirax Sarco DP27S / DP27SY Pilot Operated Pressure Reducing Valve – SG Iron Body, IBR Certified
- Spirax Sarco DRV7 SG Iron Direct Acting Pressure Reducing Valve
Related Check Valves
Brand
Find the losses before you invest in new equipment.
Steam and pump system walkthroughs that identify inefficiencies, energy losses and improvement priorities before any new product is specified.