
1800 Fuller Road
West Des Moines, IA 50265
Phone: 515-224-2301
Fax: 515-224-2326
E-mail: sales@checkall.com
Flange Insert Valve - Style F1, F6, FP (FIV)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| FIV | ½"-1½" | PTFE PVC |
VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| FIV | 2"-4" | PTFE PVC |
VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| FIV | 6" | PTFE PVC |
VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/2 PSI |
316 SS |
| FIV | ½"-1½" | 316
SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| FIV | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® Metal to Metal |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| FIV | 2"-4" | 316SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| FIV | 2"-4" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® Metal to Metal |
1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| FIV | 5"-20" | 316SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | 316 SS |
| FIV | 5"-20" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/2 PSI | 316 SS |
| FIV | ½" - 20" | Alloy
20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
| FIV | ½" - 20" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | MONEL® |
| FIV | ½"-20" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® B |
Wafer Insert Valve - Style WV (WIV)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| WIV | ½"-1½" | 316 SS Brass |
VITON ® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| WIV | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® Metal to Metal |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| WIV | 2"-4" | 316SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| WIV | 2"-4" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® Metal to Metal |
1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| WIV | ½" - 4" | Alloy 20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
| WIV | ½" - 4" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | MONEL® |
| WIV | ½"-4" | HASTELLOY ® B | VITON® Buna-N Neoprene PTFE KALREZ ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® B |
Universal Low Pressure - Style U3 (UN-3)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| UN-3 | 3/8"-1¼" | 316
SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UN-3 | 3/8"-1¼" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UN-3 | 1½"-2" | 316
SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UN-3 | 1½"-2" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UN-3 | 3/8"-2" |
|
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
| UN-3 | 3/8"-2" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® B |
| UN-3 | 3/8"-2" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | MONEL® |
Universal High Pressure - Style (U1) UN-10
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| UN-10 | 3/8"-1¼" | 316
SS |
"Metal to Metal" | 1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UN-10 | 1½" | 316 SS |
"Metal to Metal" | 1/8
PSI 1/2 PSI 1.5 PSI |
316 SS |
| UN-10 | 3/8"-1½" | Alloy
20 HASTELLOY® C |
"Metal to Metal" | 1/2 PSI | HASTELLOY® C |
| UN-10 | 3/8"-1½" | MONEL® | "Metal to Metal" | 1/2 PSI | MONEL® |
| UN-10 | 3/8"-1½" | HASTELLOY® B | "Metal to Metal" | 1/2 PSI | HASTELLOY®B or HASTELLOY® C |
Universal Socket Weld - Style (US) UN-SW
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| UN-SW | 3/8"-1¼" | 316L
SS |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UN-SW | 3/8"-1¼" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UN-SW | 1½"-2" | 316L SS |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UN-SW | 1½"-2" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UN-SW | 3/8"-2" | Alloy 20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM Metal to Metal |
1/2 PSI | HASTELLOY® C |
| UN-SW | 3/8"-2" | MONEL® |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | MONEL® |
| UN-SW | 3/8"-2" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® B or HASTELLOY® C |
Sanitary Insert Valve - Style CB, TC (SIV)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| SIV | ¾"-2" | PTFE | FDA EPDM FDA VITON® FDA Buna-N "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| SIV | 2½"-4" | PTFE | FDA EPDM FDA VITON® FDA Buna-N "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
Sanitary Check Valve 3-A - Style 3S (3SC)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| 3SC | 1"- 4" | 316L/316 SS | 3A EPDM 3A VITON® 3A SILICONE 3A KALREZ® |
1/2 PSI 1.5 PSI |
316 SS |
Sanitary Cartridge Valve - Style SCV (SC)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| SCV | 3/4"-2" | 316 SS | FDA EPDM FDA VITON® FDA Buna-N PTFE " Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| SCV | 2½"-4 | 316 SS | FDA EPDM FDA VITON® FDA Buna-N PTFE " Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
Connector Valve - Style CN (CON)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| CON | ½"-1½" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| CON | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| CON | 2"-3" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| CON | 2"-3" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| CON | 1/2"-3" |
|
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® C |
| CON | 1/2"-3" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
MONEL® |
| CON | 1/2"-3" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® B or HASTELLOY® C |
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| BU | ½"-1½" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| BU | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| BU | 2"-3" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| BU | 2"-3" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| BU | 1/2"-3" | Alloy 20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® C |
| BU | 1/2"-3" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
MONEL® |
| BU | 1/2"-3" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® B or HASTELLOY® C |
Note: The bushing thread sizes are designated by two sets of numbers; the first being the male thread, the second the female thread.
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Union Insert Valve - Style UV (UIV)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| UIV | ½"-1½" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UIV | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| UIV | 2" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UIV | 2" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| UIV | ½"-2" | Alloy 20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
| UIV | ½"-2" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | MONEL® |
| UIV | ½"-2" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | HASTELLOY® B or HASTELLOY® C |
Lined Pipe Insert - Style LP (LPI)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| LPI | 1"-3" | PTFE | VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
| LPI | 1"-3" | HASTELLOY® C | PTFE VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/2 PSI | HASTELLOY® C |
Horizontal Vertical Flanged & Drilled - Style HV (HVFD)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| HVFD | 1"-1¼" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| HVFD | 1"-1¼" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| HVFD | 1½"-2½" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| HVFD | 1½"-2½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| HVFD | 3"-10" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI | 316 SS |
| HVFD | 3"-10" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/2 PSI | 316 SS |
Horizontal Vertical Flanged & Drilled Fluoropolymer (PTFE) Lined - Style HT (HVFD-T)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| HVFD-T | 1"-2" | PTFE Lined C. Steel |
VITON® Buna-N Neoprene KALREZ® EPDM "Metal to Metal" |
1/2 PSI | FEP Encapsulated 316 SS |
Tubing Check Valve - Style TV (TCV) & Tubing Check Valve - Flared - Style TF (TCVF)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| TCV/F | ¼"-1¼" | 316SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| TCV/F | ¼"-1¼" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| TCV/F | 1½"-2" | 316
SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| TCV/F | 1½"-2" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
Mini-Check Valve - Style M1 - M8 (MCV)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| MCV | 1/8"- 3/8" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| MCV | 1/8"- 3/8" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| MCV | 1/8"- 3/8"" | Alloy
20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® C |
| MCV | 1/8"- 3/8" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
MONEL® |
| MCV | 1/8"- 3/8" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® B or HASTELLOY® C |
Straight-Sided Insert - Style SI (SSI)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| SSI | ½"-1½" | 316 SS Brass |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| SSI | ½"-1½" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
| SSI | 2" | 316 SS |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| SSI | 2" | C. Steel | VITON® Buna-N Neoprene PTFE KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
| SSI | ½"-2" | Alloy 20 HASTELLOY® C |
VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® C |
| SSI | ½"-2" | MONEL® | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
MONEL® |
| SSI | ½"-2" | HASTELLOY® B | VITON® Buna-N Neoprene PTFE KALREZ® EPDM "Metal to Metal" |
1/2 PSI |
HASTELLOY® B or HASTELLOY® C |
Glass Pipe Insert - Style GP (GPI)
| Valve Style |
Size Range |
Body Materials Other Options |
Allowable Seat Materials Other Options |
Standard Cracking Pressures Other Options More Info. |
Standard Spring Material More Info. |
| GPI | 1"-1½" | PTFE | VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
FEP Encapsulated 316 SS |
| GPI | 1"-1½" | PTFE | VITON® EPDM Buna-N Neoprene KALREZ® "Metal to Metal" |
1/8
PSI 1/2 PSI 1.5 PSI |
FEP Encapsulated 316 SS |