Manual Valves · Shut-Off Valves
Danfoss STC Shut-Off Valves
Danfoss Authorized Distributor (China)
Wenzhou Phonetoo is an authorized Danfoss distributor in China — listed in the official Danfoss dealer directory.
STC are angleway or straightway shut-off valves designed to European standards for the challenges of Asian industrial refrigeration applications. They deliver ideal flow characteristics and are easy to dismantle for service when needed.
Wenzhou Phonetoo Electromechanical Co., Ltd. is an authorized Danfoss distributor in China. Contact us for availability, pricing and delivery time.
Specification
| Item | Value |
|---|---|
| Types | Angleway (ANG) and straightway (STR) |
| Sizes | DN 15 – 150 (½ – 6 in.) |
| Max. working pressure | 25 bar |
| Temperature range | –50 – +150 °C |
| Flow | Bi-directional |
| Operation | Heavy-duty handwheel (frequent operation) or balanced bonnet (infrequent operation) |
| Refrigerants | HCFC, non-flammable HFC, R717 (ammonia), R744 (CO2); closed systems only |
| Design | Per DIN 3158 |
Key features
- For all common refrigerants including R717 (subject to seal material compatibility)
- Internal metal backseating — spindle seal replaceable under pressure
- Body-to-bonnet lead sealing prevents unauthorized operation
- Universal bonnet for low-temperature systems
- Easy to dismantle for inspection and service
Confirm the exact STC type, size and code number in your RFQ and we will quote it.
Applications
- Shut-off duty throughout industrial refrigeration plants: liquid, suction and hot-gas lines
- Ammonia, CO2 and HFC systems in Asia-Pacific installations
Code numbers
Ordering codes for Danfoss STC shut-off valves, max. working pressure 25 bar (365 psig). Confirm the exact type and code number in your RFQ and we will quote it.
STC — metric connections
| Type | Code no. | Type | Code no. |
|---|---|---|---|
| STC 15 M angle valve, handwheel | 148B4645 | STC 15 M straightway valve, handwheel | 148B4667 |
| STC 15 M angle valve, cap | 148B4644 | STC 15 M straightway valve, cap | 148B4666 |
| STC 20 M angle valve, handwheel | 148B4647 | STC 20 M straightway valve, handwheel | 148B4669 |
| STC 20 M angle valve, cap | 148B4646 | STC 20 M straightway valve, cap | 148B4668 |
| STC 25 M angle valve, handwheel | 148B4649 | STC 25 M straightway valve, handwheel | 148B4671 |
| STC 25 M angle valve, cap | 148B4648 | STC 25 M straightway valve, cap | 148B4670 |
| STC 32 M angle valve, handwheel | 148B4651 | STC 32 M straightway valve, handwheel | 148B4673 |
| STC 32 M angle valve, cap | 148B4650 | STC 32 M straightway valve, cap | 148B4672 |
| STC 40 M angle valve, handwheel | 148B4653 | STC 40 M straightway valve, handwheel | 148B4675 |
| STC 40 M angle valve, cap | 148B4652 | STC 40 M straightway valve, cap | 148B4674 |
| STC 50 M angle valve, handwheel | 148B4655 | STC 50 M straightway valve, handwheel | 148B4677 |
| STC 50 M angle valve, cap | 148B4654 | STC 50 M straightway valve, cap | 148B4676 |
| STC 65 M angle valve, handwheel | 148B4657 | STC 65 M straightway valve, handwheel | 148B4679 |
| STC 65 M angle valve, cap | 148B4656 | STC 65 M straightway valve, cap | 148B4678 |
| STC 80 M angle valve, handwheel | 148B4659 | STC 80 M straightway valve, handwheel | 148B4681 |
| STC 80 M angle valve, cap | 148B4658 | STC 80 M straightway valve, cap | 148B4680 |
| STC 100 M angle valve, handwheel | 148B4661 | STC 100 M straightway valve, handwheel | 148B4683 |
| STC 100 M angle valve, cap | 148B4660 | STC 100 M straightway valve, cap | 148B4682 |
| STC 125 M angle valve, handwheel | 148B4663 | STC 125 M straightway valve, handwheel | 148B4685 |
| STC 125 M angle valve, cap | 148B4662 | STC 125 M straightway valve, cap | 148B4684 |
| STC 150 M angle valve, handwheel | 148B4665 | STC 150 M straightway valve, handwheel | 148B4687 |
| STC 150 M angle valve, cap | 148B4664 | STC 150 M straightway valve, cap | 148B4686 |
STC — ANSI connections
| Type | Code no. | Type | Code no. |
|---|---|---|---|
| STC 15 A angle valve, cap | 148B4600 | STC 15 A straightway valve, cap | 148B4622 |
| STC 15 A angle valve, handwheel | 148B4601 | STC 15 A straightway valve, handwheel | 148B4623 |
| STC 20 A angle valve, cap | 148B4602 | STC 20 A straightway valve, cap | 148B4624 |
| STC 20 A angle valve, handwheel | 148B4603 | STC 20 A straightway valve, handwheel | 148B4625 |
| STC 25 A angle valve, cap | 148B4604 | STC 25 A straightway valve, cap | 148B4626 |
| STC 25 A angle valve, handwheel | 148B4605 | STC 25 A straightway valve, handwheel | 148B4627 |
| STC 32 A angle valve, cap | 148B4606 | STC 32 A straightway valve, cap | 148B4628 |
| STC 32 A angle valve, handwheel | 148B4607 | STC 32 A straightway valve, handwheel | 148B4629 |
| STC 40 A angle valve, cap | 148B4608 | STC 40 A straightway valve, cap | 148B4630 |
| STC 40 A angle valve, handwheel | 148B4609 | STC 40 A straightway valve, handwheel | 148B4631 |
| STC 50 A angle valve, cap | 148B4610 | STC 50 A straightway valve, cap | 148B4632 |
| STC 50 A angle valve, handwheel | 148B4611 | STC 50 A straightway valve, handwheel | 148B4633 |
| STC 65 A angle valve, cap | 148B4612 | STC 65 A straightway valve, cap | 148B4634 |
| STC 65 A angle valve, handwheel | 148B4613 | STC 65 A straightway valve, handwheel | 148B4635 |
| STC 80 A angle valve, cap | 148B4614 | STC 80 A straightway valve, cap | 148B4636 |
| STC 80 A angle valve, handwheel | 148B4615 | STC 80 A straightway valve, handwheel | 148B4637 |
| STC 100 A angle valve, cap | 148B4616 | STC 100 A straightway valve, cap | 148B4638 |
| STC 100 A angle valve, handwheel | 148B4617 | STC 100 A straightway valve, handwheel | 148B4639 |
| STC 125 A angle valve, cap | 148B4618 | STC 125 A straightway valve, cap | 148B4640 |
| STC 125 A angle valve, handwheel | 148B4619 | STC 125 A straightway valve, handwheel | 148B4641 |
| STC 150 A angle valve, cap | 148B4620 | STC 150 A straightway valve, cap | 148B4642 |
| STC 150 A angle valve, handwheel | 148B4621 | STC 150 A straightway valve, handwheel | 148B4643 |
STC — SOC connections
| Type | Code no. | Type | Code no. |
|---|---|---|---|
| STC 15 SOC angle valve, handwheel | 148B4773 | STC 15 SOC straightway valve, handwheel | 148B4777 |
| STC 20 SOC angle valve, handwheel | 148B4774 | STC 20 SOC straightway valve, handwheel | 148B4778 |
| STC 25 SOC angle valve, handwheel | 148B4775 | STC 25 SOC straightway valve, handwheel | 148B4779 |
| STC 32 SOC angle valve, handwheel | 148B4776 | STC 32 SOC straightway valve, handwheel | 148B4780 |